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We offer the widest range of I&C capability in the industry — from retrofit and modernization of existing units to complete I&C responsibility for greenfield plants. In everything that we do — from consulting and systems design; to installation, start-up and ongoing service; to complete Engineer, Procure and Construct (EPC) project implementation, our goal is to help you cut costs, increase efficiency, and enhance overall plant or fleet performance. With more than 3000 installations at generating facilities around the world, we understand the complexity of power generation operations, your unique application requirements, and your stringent performance criteria better than anyone else in the business.

We offer unmatched expertise in designing and implementing effective information and control systems to minimize both the total installed cost and total cost of operation. By applying proven process control and monitoring logic to our technology, we create powerful, yet user-friendly operations centers that integrate various systems into a comprehensive plant-wide control and information system. And, with our PlantWeb digital plant architecture, field device configuration, calibration, diagnostics and documentation can be coordinated from a single point using powerful AMS Suite software to save commissioning and maintenance man-hours, avoid failures, and improve process performance.

A number of power generation projects demonstrate our ability to manage large or complex installations, apply our unique applications expertise, and deliver innovation solutions using our advanced technologies.

Emerson’s Smart Wireless Network Produces Annual Revenue Increase of $512,000 for CFE with Extra $1,375,000 When Fully Implemented
Comisión Federal de Electricidad (CFE) is the Mexican state-owned electric company responsible for control and development of the national electric industry. CFE also operates many of Mexico’s power generating facilities. The Testing Laboratory of Equipment and Materials (LAPEM), a technical support group of CFE Generation, evaluates CFE power plants (thermal, hydraulic, nuclear, geothermal, and combined cycle) to determine a plant’s thermal behavior by measuring pressures, temperatures, flows, and electrical power. LAPEM performs calculations and performance tests, based on international codes (ASME PTC), to determine a plant’s heat rate and equipment efficiency.

LAPEM has five analysis teams that set up temporary measurement facilities at each of 140 power plants. The teams find it difficult to analyze and report on 100 percent of the plants due to the time needed at each site. LAPEM required a solution that would reduce the evaluation turn-around time to enable site visits and analysis at each plant every other year.

Results

  • Increased productivity and plant coverage by 10%
  • Increased annual revenues by $512,000 US
  • Decreased on-site time by 1/3
  • Anticipate an additional 40% productivity increase producing an extra $1,375,000 US annually without adding personnel when all five teams implement Smart Wireless

Comision

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Progress Energy, Roxboro Steam Plant

Progress Energy Realizes Savings of $4.0 Million with Emerson's Ovation® Controls at Roxboro
The four-unit, 2462 MW Roxboro Steam Station is one of the largest power plants in the U.S. As a base load facility, reliable operation of the Roxboro units is essential for dependable service to Progress Energy customers. Plant controls, originally installed between 1966 and 1980 were replaced in the 1990s with Taylor Mod 300 systems, which were data linked to a host of other PLC-based systems distributed throughout the plant. The Mod 3000 systems and PLCs all used Genius® I/O blocks for 20,000 remote I/O points. In 2000, Progress Energy sought to once again upgrade the control technology at all four units with a centralized, integrated system. Replacing the existing Genius I/O with new modules was out of the question due to tight outage schedules and added costs. Challenges associated with the four-unit controls upgrade included supplying reliable and affordable redundant interfaces to the station's 2,700 Genius I/O blocks; furnishing operators with a centralized, coordinated system for improving plant operation; installing the system within a 30-day outage schedule; and providing flexibility for adding new plant controls. After careful consideration of all proposed solutions, Progress Energy selected Emerson's Ovation® expert technology to replace controls on all four Roxboro units.

Results

  • $3.0 million estimated hardware savings by reusing the existing I/O blocks
  • $1.0 million estimated labor savings by eliminating the rewiring of I/O
  • Increased Unit 2 load dispatch by 3%
  • Improved Unit 2 superheat by +/- 5 degrees Fahrenheit regulation during load ramps

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Duke Energy, Marshall Steam Plant
The Marshall Steam Station, the second largest coal plant within Duke's fleet, is a four-unit generating facility with a total generating capacity of approximately 2300 MW. Since beginning operation with Unit 1 in 1965, Marshall Station has been among the most efficient power plants in the nation. A unique type of burner arrangement in the Marshall boilers keeps the facility's nitrogen oxide emissions well below regulatory limits. In 2004, Duke began installation of FGD scrubber equipment to lower Marshall's sulfur dioxide emissions by approximately 90 percent. New scrubber equipment requires the latest in controls. Since Duke had selected Ovation® expert control technology for many of its plants, they naturally turned to Emerson to fabricate a control system for the Marshall Units 1-4 wet flue gas desulphurization equipment. The new Ovation system matches the look and feel of each unit's existing Ovation boiler control systems, providing continuity for the unit operators. The Ovation FGD system operates safely and reliably in all modes of operation at all load demands. Taking connectivity to a new level, Ovation's multi-network feature connects each existing Marshall unit's individual boiler networks with the new Ovation FGD network to allow each network/unit to participate in an overall plant control scheme while maintaining network independence. Duke personnel in a centralized Marshall control room can now monitor and control each unit's boiler and FGD processes as if they were at that unit's console.

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Con Edison, East River Repowering Project

Con Edison's East River Repowering Project Uses Ovation® Simulator to Dramatically Reduce Plant Startup Time

Con Edison's East River energy complex underwent major improvements to maintain reliable and reasonably priced steam supply and electricity for customers throughout New York City. The East River Repowering Project (ERRP) is a newly built, truncated combined-cycle facility using two General Electric combustion turbines connected to two heat recovery steam generators (HRSGs) and a steam ring header. This unique configuration provides steam at 3 million lb/hr for dispatch into Manhattan, where it is used as a key source for heat in the winter and air conditioning in the summer. Con Edison's significant investment in this plant made safe and timely commissioning and startup of the plant crucial. Located in Manhattan, Con Edison also had to adhere to strict environmental constraints such as noise levels during construction as well as emissions levels during commissioning, startup, and operation of the plant. In order to help ensure optimal operation of the ERRP plant, Con Edison sought a means to efficiently train their operators using equipment and plant models duplicating the repowered East River plant prior to actual commissioning and startup. Con Edison also wanted a tool to help them verify and validate new control logic prior to installation into the plant's control system. Based on a two decade relationship of proven performance, Con Edison partnered with Emerson to provide the right solution. Emerson's Ovation® expert technology was selected to monitor and control the unique processes associated witth the new technology deployed at the ERRP site. In order to ensure optimal plant operation, Con Edison engineers and operators teamed with Emerson to configure a high-fidelity Ovation® simulator.


Results

  • Contributed to reduced startup duration of Con Editon's first truncated combined-cycle plant by 3 months
  • Educated operators on theory, behavior, and responsiveness of new technology versus traditional boiler/steam turbine configurations
  • Trained operators to use appropriate displays to analyze variables for quick response to abnormal scenarios
  • Verified and validated new controls and interfaces to third-party systems prior to "live" plant operation

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Alabama Power Company, A Subsidiary of Southern Company, James M. Barry Plant
In 2004, Alabama Power, one of five U.S. utilities owned by Southern Company, began working with Emerson on a two-phased control upgrade project at Barry Unit 5, a coal-fired supercritical once-through unit that generates approximately 772 megawatts. Phase 1 consisted of replacement of the Perkin Elmer input/output modules with Ovation I/O and Controllers for data acquisition plus the first part of a complete replacement of the existing Bailey Infi90 control system with Ovation®. As part of the DAS replacement, Emerson implemented two gateways connecting the Ovation DAS system to 39 Rosemount 848T transmitters on two FOUNDATION fieldbus segments. Boiler and bearing temperature information from the 848T transmitters are passed through the FOUNDATION fieldbus segments to the Ovation system and the AMS™ Suite: Intelligent Device Manager for predictive maintenance. During Phase 1 of the project, Barry Unit 5 is also implementing the first part of its Bailey migration to Ovation. This phase, which Emerson refers to as "Console Replacement", provides new Ovation workstations, connected to the Bailey network through an OPC server to control the Bailey Infi90 processing units. The Ovation to Bailey interface moves process points from the Infi90 network to the new Ovation DAS network and transfers control requests from the Ovation workstations back to the Infi90 network. Phase 2, anticipated for 2006, completely replaces the remaining Bailey Infi90 equipment with Ovation. When completed, Barry Unit 5 will consist of a single integrated Ovation system for complete control and monitoring of the unit's boiler, burner management, and data acquisition systems.

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Korea South-East Power Company (KOSEP), Yonghung Units 1 & 2

KOSEP's Yonghung Thermal Power Plant Achieves Low Emissions with Emerson Solutions
South Korea consumes about 15 gigawatts of energy each year, half of which goes to the country's largest and most densely populated city, Seoul. With annual energy consumption growing at eight percent, Korean power generators must take steps to maintain high levels of availability and reliability to maintain cost-effective production. The Yonghung power plant is part of KOSEP's strategy to maintain low-cost, high-quality electricity for Seoul's metropolitan area. Newly constructed and online in 2004, Yonghung Units 1 & 2 were built to be the ultimate example of the next generation of clean-burning, highly efficient power plant operations. The plant is required to exhibit above-average heat rate; short hot and cold startup times; environmental protection; operational and fuel savings; and state-of-the-art technology. Emerson Process Management provided a total plant solution based upon the PlantWeb digital plant architecture. The plant's Integrated Control and Monitoring System (ICMS) consists of an Ovation® expert control system that manages all plant systems including boiler control, burner management, data acquisition, motor control and balance-of-plant processes. In addition, to the control system, the ICMS also incorporates an advanced, high-fidelity Ovation® simulator, SmartProcess® plant optimization technology, and AMS™ Suite: Intelligent Device Manager.

Results

  • Completion of plant testing and startup approximately 3 months ahead of schedule
  • Lowest SOx, NOx and dust emissions of all the thermal power plants in Korea
  • Minimization of cabling and maintenance costs due to simplified circuitry

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Florida Power & Light, Sanford Repowering
To provide the community with cleaner, more reliable energy, FP&L's Sanford repowering project replaced vintage systems with combined-cycle technology that uses clean-burning natural gas instead of oil. Using Emerson's state-of-the-art Ovation® information and control system, FP&L achieved a more efficient and cost-effective plant process that produces no visible emissions and serves 500,000 homes and businesses, twice the previous capacity. The repowered Sanford site generates power using eight natural gas-fired, combined-cycle combustion turbines. The Sanford repowering project was preceded by several successful upgrades and installations by Emerson Process Management Power & Water Solutions. Units 3, 4 and 5 all incorporated Ovation technology for optimum plant control. Sanford Unit 3 was the first installation to use Ovation for its newly implemented Burner Management System. This system provides start-up and shutdown sequencing as well as control and monitoring of dampers, igniters, valves and flame detectors for the units' 16 burners. Three modes of operation, gas, oil or a combination of both, are available based upon load and fuel selection.



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Dairyland Power Cooperative, J.P. Madgett Station

Ovation® Simulator Contributes to Dairyland's Error-Free Startup at the Madgett Station
In 2004, Dairyland Power Cooperative replaced its 30-year-old plant control system with state-of-the-art Ovation® expert technology from Emerson. Modernizing a system that is critical to efficient plant operation presented several challenges. The first challenge was to determine an effective method of verifying that the new controls operated as specified in order to meet important deadlines for timely plant startup. The second challenge was training the plant staff in the operation and maintenance of the new equipment to ensure a smooth technology transition without interruption to service or performance. Finally, Dairyland required on-going education of existing employees and qualification of new employees for safe and efficient operation of the Madgett station. Emerson's Ovation® Simulator technology, customized for Dairyland's needs, provided the right solution.

Results

  • Trained operators in efficient use of the new control system resulting in an error-free plant startup
  • Provided the ability to demonstrate critical operating skills, thus reducing exemptions for "operators in training" by 80%
  • Permitted performance testing for further plant operational improvements
  • Improved operators' skill, experience and confidence in accurately responding to normal and abnormal plant operations

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Entergy, Nine Mile Power Plant
Entergy's largest generating station with a capacity of approximately 1830 MW, gas-fired Nine Mile Point near New Orleans, came online in the 1950s. Unit 4 (750 MW) was commissioned in 1971 and Unit 5 (750 MW) in 1973. In 1994, the original Bailey 855 data acquisition computer and Westinghouse analog controls were removed and upgraded to Emerson's WDPF distributed control system. Ten years later, Entergy again teamed with Emerson to migrate the Nine Mile Unit 5 WDPF system to Ovation®. The Emerson WDPF-to-Ovation migration program, which emphasizes technical compatibility and preservation of our customer's existing investments, provided a low risk, economical alternative to complete system replacement at Nine Mile Unit 5. The project also included upgrade of the Forney burner management system to Ovation. In addition to Ovation, Entergy also implemented Emerson's Ovation SmartProcess Combustion Optmizer at Nine Mile Units 4 & 5 to automatically determine the optimum position for each of the dampers at the given load in order to reduce NOx emissions. Entergy realized a return on its SmartProcess investment in only two months with results that included an average 13% reduction in NOx over full load range and an average 0.2% improvement in heat rate.

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Tennessee Valley Authority, Bull Run
Now generating more than 6.5 billion kilowatt-hours per year, Bull Run has been regularly rated as one of the most efficient generators in the U.S. This 950 MW station is the world's only CE supercritical once-through with a twin furnace. The high cost of maintenance and difficulty in obtaining replacement parts for the original L&N control system and CE burner management system, persuaded plant owners to upgrade. To avoid ongoing maintenance and support issues associated with proprietary control systems, TVA was interested in a DCS that could provide state-of-the-art precision control and allow the plant to upgrade components as newer, faster technology became available. Because Bull Run is unique, TVA was concerned about finding a partner who could handle the complexities and special conditions involved in a control upgrade. Emerson's experience on other CE supercritical once-through units as well as our history of successful Ovation® installations led TVA to choose Emerson Process Management Power & Water Solutions for their unique control system upgrade. In just nine short months, we were able to design and build an Ovation system to meet TVA's custom needs.

TVA Bull Run

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North American Energy Services, Covert Generating Facility

Emerson's SureServiceSM Support Helps Covert Generating Facility Avoid Lost Revenue
As a merchant plant, the Covert Generating Facility sells its output in the competitive wholesale market, moving the electricity it produces through the lines of the Midwest Independent System Operators (Midwest ISO). Every day, the Covert staff offers the Midwest ISO the amount of energy available for sale and its associated cost. In early July 2005, the plant was experiencing disruption issues with the control system network. Immediate resolution of the problem was required in order for the plant to continue generating and selling power for the next few days or weeks. Delays would put operations on hold, thus causing the company to miss out on significant revenue from lost power production. When the Ovation® system was installed at Covert, the site subscribed to Emerson's SureService customer support program. Using SureService, the North American Energy Services staff and Emerson engineers diligently worked to fix the network disruption, but were not able to discover the source of the issue. A phone call to Emerson headquarters prompted senior management to enlist the help of additional resources as part of Covert's SureService contract. A specialized SWAT team was immediately dispatched for troubleshooting support. A discussion of specific system events and major concerns with facility personnel led to development of a correction action plan. An Emerson field service engineer arrived at the site within hours to implement the remedial strategy.

Results

  • Quick problem resolution enabled the facility to be available for generation, avoiding potential loss of revenue
  • The on-site service team identified and resolved the problems within 24 hours
  • Emerson provided invaluable hands-on training to on-site personnel
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Xcel Energy, Riverside
Built in 1911, Riverside is the oldest coal-fired plant in the Xcel Energy system. By 1966 Riverside had eight operating units. As the plants aged, some units were retired; however, Units 7 and 8 remain operational. Unit 7 utilizes two boilers to produce steam to drive the turbine-generator, while a single pressurized boiler with a cyclone furnace powers Unit 8. Over the years, Riverside Units 7 and 8 were both the focus of aggressive maintenance activities aimed at improving operating efficiency and reducing air emissions. Xcel Energy teamed with Emerson to upgrade their existing WDPF control system to Ovation® expert control technology. Emerson's connectivity products link Riverside's plant control system to corporate networks. For example, Emerson's web viewer provides access to real-time Ovation process data and graphics over the company LAN or WAN, or from off-site via dial-up or Internet connections.

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Dominion Power, Bath County Pumped Storage Facility
Dominion Power's Bath County Pumped Storage Facility consists of two large reservoirs and a large powerhouse; the massive facility is the world's most powerful pumped storage station and when it was built in 1985, it was esteemed as one of the most outstanding engineering achievements of the year. While the Dominion had a history with Emerson systems at some of their other plants, and were satisfied with the recent success of the Bellemeade WDPF-to-Ovation migration, they were determined to look at a number of DCS systems to find the right fit for this particular project. Dominion needed a robust DCS that could withstand a high level of EMF/RFI interference; had enough power to handle 8400 I/O points (3,700 datalinked points and 4,700 hardwired points); and would be capable of handling 125VDC and 125VAC I/O. Dominion Power choose Emerson's Ovation® as the best system for the job. Emerson will replace the main control switchboard and existing plant control and monitoring system with Ovation. And, as part of our ongoing commitment to customer satisfaction, Emerson also guaranteed Dominion a one-hour call back from of our technical experts during the critical system configuration phase of the project.

PLANT PHOTO

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Southern Illinois Power Cooperative (SIPCO), Marion Station

SIPCO's Marion Station Realizes Outstanding Success with Emerson's Ovation System
With circa 1960s and 70s analog and pneumatic Bailey controls on the Marion plant, the existing equipment was well past its useful life. SIPCO wanted to integrate the latest technology into the plant, while developing a strong alliance with their DCS vendor for ongoing support and development of their long-range vision. The project came with a series of unique constraints. Limited resources required that the system be easily implemented without excessive demands on the plant staff. In addition, the system had to meet operating requirements while falling within budget constraints. One of these constraints was that the existing boilers needed to continue to operate while the system was being installed. The first Ovation Solaris-based system was installed in Spring 2000 on Unit 4 for boiler control, cyclone management control, miscellaneous control, motor control, and data acquisition.

Phase two of the project included repowering of units 1, 2, and 3. Emerson installed another Ovation Solaris-based system on new CFB boilers and repowered existing Allis Chalmers turbines. Emerson then replaced existing controls on the Unit 4 wet scrubber and incorporated the balance of plant for new GE Frame 7 turbines into the Ovation system. This was the largest undertaking of the entire project, and it included installation of the new Ovation system, new boilers, and new turbines.

Results
  • Dramatic improvement in information management
  • Improved data acquisition capabilities throughout the plant
  • 20% improvement in reliability and availability
  • 10% improvement in equipment wear
  • Significant reduction in temperature swings and spikes

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Basin Electric Power Cooperative, Leland Olds Station
When Leland Olds Station Unit 1 went online in January 1966, it was the largest lignite-based power plant (216 MW) in the Western Hemisphere. Unit 2, a 440-megawatt unit began commercial operation in December 1975. Basin Electric selected Emerson's Ovation® technology to improve control for optimal unit operation. Ovation replaces the unit's outdated analog controls and the recently installed ABB Symphony turbine controls. The Ovation system will be for numerous control applications including those for the B&W cyclone boiler, burner management system, Brown Boveri steam turbine, two DeLaval boiler feedpump turbines, and more. Basin's Leland Olds PlantWeb® architecture consists of Ovation expert controls with two gateways connected to 39 Rosemount 848T transmitters on two FOUNDATION Fieldbus segments and the AMS™ Suite: Intelligent Device Manager. Process and equipment information from the 848T transmitters are passed through the FOUNDATION Fieldbus segments to the Ovation system, enabling Basin operators to predict and remedy conditions that could otherwise lead to unexpected downtime.

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East Delta Electricity Power Company/Egyptian Electric Holding Company, Ataka Thermal Power Station
Emerson will serve as the main automation contractor for the instrumentation and control modernization of Ataka's two 150-megawatt units and two 300-megawatt units that supply power to four million residents in the Suez region of Egypt. Emerson's responsibilities include design, installation, commissioning and start-up of the new control systems. Using a phased approach, the Ovation® expert control system will replace the current systems in all four units, providing coordinated combustion control, boiler management, boiler combustion control, balance of plant control, data acquisition, steam turbine control, automatic turbine startup, reheat steam control, and boiler feedpump control. The Ovation system will include a multi-network architecture, with four redundant unit networks and one shared LAN. This will allow full communication between units without compromising security in any way. Emerson's PlantWeb®, a powerful, information-rich digital plant architecture, serves as the technology foundation for both asset optimization and process automation, combining smart field instrumentation and analytic software with a strong distributed control system to optimize plant operations.

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Western Farmers Electric Cooperative
In 2000, Western Farmers Electric Cooperative (WFEC) decided to upgrade its 10 generating units. These units, which include one coal-fired, six gas-fired, and three combined cycle plants, are responsible for supplying wholesale electric power to 19 distribution cooperatives and Altus Air Force Base. WFEC opted to standardize their entire fleet on one controls supplier, choosing Emerson and its Plantweb® digital plant architecture and Ovation® expert control system. WFEC's fleet-wide approach offered a number of advantages including the creation of a standardized interface to other systems and users, reduced training costs, reduced inventory, and creation of a more flexible technical work force. One year into the seven-year program, Emerson and WFEC have completed control system upgrades at the Anadarko Unit 3 and Mooreland Unit 3 facilities. The upgrades to both units included the replacement of pneumatic controls with Ovation, new Smart field instrumentation and Emerson's Intelligent Device Manager for predictive and proactive maintenance of instruments and valves. Since the upgrade, Anadarko Unit 3 has seen 6.6% heat rate improvements and a 3% increase in ramp rate. Mooreland Unit 3 has seen 9% heat rate improvements at full load and 2 % increase in ramp rate. Both units have also seen significant reductions in MW overshoot, oxygen overshoot and drum level overshoot.

Mooreland 3

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Constellation Energy, Crane Units 1 & 2

SmartProcess Software First to Demonstrate 25% NOx Reductions in Cyclone Boiler
Ozone season in Baltimore, Maryland, which is from May through September, presented a challenge for Constellation's Crane power units. High NOx emissions and escalating NOx credits threatened the future of the units from the late 1990s through 2004. In late 1999 through early 2000, Constellation installed over-fire air/gas reburn systems in an effort to reduce Crane NOx emissions to acceptable levels. Although they achieved a 40-50% NOx reduction, the rising cost of natural gas forced the systems offline after a short year of operation in 2001-2002. With another ozone season quickly approaching for 2003, Constellation needed to find a cost-effective solution for the Crane units to be in compliance with federal NOx regulations, thus keeping them operational for remote dispatching when needed.

SmartProcess® Optimization Software was used to implement the three-phased Crane boiler optimization project. The first and most important phase used the Cyclone Boiler Optimizer. This SmartProcess module significantly reduced NOx emissions from the Constellation Crane units, while providing increased competitiveness in the power market. Analysis of parametric testing, where multiple plant variables were manipulated, revealed that several factors -- cyclone stoichiometry (a measure of the fuel-to-air ratio for the combustion process), boiler excess oxygen, boiler air duct pressure, and boiler overfire air flow -- all had impact on the NOx production of the boilers. Changes to these variables brought the cyclone stoichiometry value to within the recommended operating range.

Results
  • Reduced average NOx emissions by 25%
  • Earned more than $2 million in annual NOx credits to date
  • Improved O2 split across boilers for more efficient operation
  • Achieved return on investment within two months of installation

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Arizona Electric Power Cooperative, Apache Generating Station
The Apache station supplies 520 megawatts of electric energy to Arizona and portions of California and New Mexico. With 30-year-old plant controls a key concern, AEPCO teamed with Emerson Process Management to design and build a high-quality, consolidated power plant control system for three of Apache's generating units. Emerson's Ovation® expert control system replaced a mix of antiquated Bailey and ABB/Taylor boiler controls as well as Forney and Square D burner management systems. Apache's Ovation system stabilizes boiler temperatures to improve the station's LOI and allow more efficient fuel usage. What used to be considered waste, fly and bottom ash are now important company assets. Changes to a new ash collecting system, as well as improved LOI provided by the Ovation system, allows AEPCO to sell 100% of its energy produced by-products to combustion product marketers. Through improved plant control, Ovation also decreases the amount of carbon present in Apache's fly and bottom ash, increasing its desirability for beneficial, environmental-friendly uses.



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AES, Tisza Power Plant
AES, the third-largest power producer in Hungary, is modernizing the Tisza plant in order to assure future generation capacity. Emerson's PlantWeb® digital plant architecture will anchor automation and predictive maintenance techniques designed to improve the power plant's efficiency, reliability and overall performance. Emerson's DeltaV™ digital automation system, one component of the PlantWeb architecture, will control four 215-megawatt natural gas and oil fired units. The installation of HART field devices and AMS Suite Intelligent Device Manager will allow plant operators to diagnose and correct issues for more than 600 control valves and instruments in the plant before costly problems can occur. Our SmartProcess® Global Performance Optimizer will also allow operators to identify controllable losses, track equipment performance against design specifications, and quickly identify problematic process areas to reduce operating costs.

Plant Photo

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Southern California Edison, Big Creek Hydroelectric
Big Creek Hydroelectric system consists of 23 generating units in nine powerhouses with as much as 60 miles between sites. When SCE embarked on a plan to incorporate remote operation capabilities and improved efficiency, they faced the overwhelming task of coordinating control of multiple sites over a vast area. Because of the geographical challenges, SCE required a flexible system design that incorporated an open architecture that could capitalize on changing technology. However, a goal of the Big Creek project was to accomplish this without rebuilding the communications infrastructure. Southern California Edison turned to Emerson Process Management Power & Water Solutions for a versatile control system that could remotely control, program, and perform data acquisition and control of each powerhouse from a central location. Using the state-of-the-art global configuration features of our Ovation® control system, as well as standalone functions similar to those used with SCADA systems, Emerson addressed Big Creek's geographical challenges with ease.

Big Creek

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Electric Energy, Inc., a Subsidiary of Ameren, Joppa Station

Emerson SmartProcess Combustion Optimizer Produces Average 9.2% NOx Reductions

In the 1990s, Electric Energy, Inc. (EEI) converted the Joppa station to burning low-sulfur Powder River Basin (PRB) coal as a means to lower sulfur dioxide emissions, comply with the clean air act, and reduce operating costs. In conjunction with switching to PRB coal, EEI also installed new low NOx burners and level I close-coupled overfire air, which helped to decrease their baseline NOx emissions. The success of this conversion led the staff at EEI to pursue additional NOx reductions through optimization technology. The ultimate goal was to achieve average stack NOx emissions at the Joppa Station to below 0.13 lbs/MMBtu.

Emerson’s SmartProcess® Combustion Optimizer provided EEI with the solution. The Combustion Optimizer reduced the stack emissions of each Joppa boiler by properly distributing the combustion air for control of both NOx and CO. The initial project was implemented on one unit, and then was extended to all six units after the operational improvements and emissions reductions were proven.

Results
  • 9.2% average NOx reduction across six units
  • 25% average CO reductions
  • Three month project cycle for each unit
  • No outages required

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Tampa Electric Company, Big Bend Station
Tampa Electric Company's Big Bend Station outputs about half of the company's total generating capacity, more than 1,800 megawatts. Faced with increasing demands to meet high growth needs in the service area, Big Bend Station turned to Emerson Process Management Power & Water Solutions to upgrade Units 1 and 2 based on our extensive expertise in turbine control and successful history working together. The project entailed an upgrade of Big Bend Station's Westinghouse steam turbines to Ovation® controls. Tampa Electric now enjoys a common, unified platform across Units 1 and 2, laying a strong foundation for the plant. By choosing to unify the control systems, Tampa Electric has reduced their cost to operate and maintain Big Bend Station through Ovation control features such as optimized turbine valve position operation.



FISIA/Italimpianti and Enelpower, Ras Laffan Power and Desalination Plant
FISIA/Italimpianti and Enelpower, the EPC contractors for the Ras Laffan Power Company (RLPC), are developing a new 800 MW combined-cycle power plant and desalination plant which will produce 50 million imperial gallons of potable water per day (MIGD). The plant's electricity generating capacity is expected to increase to 1,400 MW and water capacity to 80 MIGD over the project's 25-year life span. FISIA and Enelpower jointly chose Emerson's Ovation® control and information system for the power and desalination plants. Ovation was selected for its capability to easily integrate large quantities of I/O, its proven application in power plants, and for providing a cost-effective solution. The power plant system, which will consist of two trains of 2x1 combined cycles, will be seamlessly integrated with the four desalination plants, resulting in hardwired I/O of over 15,000 points. Software interfaces will integrate four GE Mark VI turbine controllers with two Franco Tosi DEH systems. Emerson Process Management Power & Water Solutions will provide the project management, functional design, system software design, start-up, commissioning, and engineering services. The scope also includes the Ovation Load Demand Computer which will optimize the entire power generation process by selecting an operating mode that most effectively meets current power and steam demands for the desalination units.
RAS LAFFAN

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American Electric Power (AEP), Rockport Plant

Emerson's Ovation® Technology Controls Largest Fossil Turbines in the World
The mechanical hydraulic control (MHC) and mechanical hydraulic protection (MHP) systems for the Brown Boveri 1300 MW turbines at Rockport Units 1 & 2 were designed in the late 1960s and early 1970s as part of the original turbine contract. Exceptional performance of the MHC and MHP systems continued through the new millennium, but a concern for future support and service for obsolete components led AEP to investigate newer electro hydraulic technology. Emerson's Ovation® expert technology and turbine hydraulic equipment design were selected to meet the goals established by AEP for the mechanical hydraulic control and protection system upgrade.

Results

  • Simplified design reduced mechanical parts by 62%, lessening the likelihood of component failure
  • Reduced the number of hydraulic fluid circuits from 7 to 2
  • Improved protection of turbine equipment
  • Decreased maintenance costs by replacing obsolete and unreliable control panel equipment
  • Increased turbine equipment monitoring for quicker troubleshooting

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Enel Production, Pietrafitta Nuova Power Plant
Located in central Italy, this new 370 MW combined-cycle plant has been designed with an interesting combination of one gas turbine and two steam turbines. Using fieldbus technology, the configuration of the plant allows it to operate when one of the two steam turbines is not operating. Due to the many benefits that fieldbus technology provides, ENEL Production chose to apply this technology to all of its new combined-cycle plants. Since all of Enel's new plants would use fieldbus, it made sense to update the I&C of all of their existing plants. Enel employed Emerson Process Management to install its DeltaV control system and manage the entire turnkey project. In addition to the DCS, Emerson will supply the ESD system interfaced via OPC, Control Room, and Foundation Fieldbus instruments including 170 pressure transmitters and 40 DVC controllers. Emerson will manage all site activities including installation, commissioning and start-up.
Pietrafitta

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Consumer's Energy, J.H. Campbell Complex

Consumer's Energy Uses Emerson's Ovation Simulator at Its J.H. Campbell Complex

In 2000, Consumers Energy updated the control systems for Units 1,2, 3, and coal handling for the J.H. Campbell Complex with Ovation® expert controls. The Campbell plant has a number of constraints that make training on the new systems challenging. First, all three units have unique configurations. Second, with its own dedicated staff, Unit 3 operates separately from Units 1 and 2. Third, operators from Units 1 and 2 must fully understand the various software applications and equipment for each unit, and be able to work on both concurrently.

A year after implementing their new Ovation systems, Consumers opted to install Ovation Simulators for each system. Units 1, 2, and 3 received high-fidelity simulators, which operate with real Ovation controllers and plant software.

Results
  • Provides a simulation system to train and test plant engineers, operators, and technicians before they work on a live system
  • Enables Consumers Energy to fully test system software and software updates prior to implementation
  • Allows personnel to experiment with various operating techniques

PLANT PHOTO

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PacifiCorp, Bridger, Gadsby, Hunter and Huntington Plants
In order to continue to provide reliable energy to meet growing demands, PacifiCorp embarked on a multi-plant upgrade, choosing a complete Emerson Process Management solution. A long-term alliance leverages the strength of Emerson to design and implement a new generation of process control and information systems that will maximize the efficiency and reliability of the plants. Ovation®, as part of the total-solution package, modernizes the controls of multiple units at the Jim Bridger, Gadsby, Hunter, and Huntington Canyon sites. The alliance also includes complete plant instrumentation and performance studies, as well as control instruments and related products from a number of Emerson Process Management companies. Ovation replaces all of PacifiCorp's major plant control systems, providing a common operating platform throughout the plants. The custom-engineered Ovation system coordinates combustion and turbine controls to reduce heat rates and improve ramp rates in each unit. The unified control system also allows operators to effectively handle load swings and stabilize loads to reduce the risk of unplanned outages. Through secure Internet-based channels, PacifiCorp plant and corporate personnel can access the control system from any desktop to view site operation and performance data. In addition to the new control systems, Emerson Performance Solutions studied each plant and developed detailed financial and process control reports to establish the projects' exact business objectives for optimal improvement. During the course of each project, additional detailed performance audits will be performed to provide critical analysis of actual valve, instrument, rotational, electrical and process performance information.


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AES, Warrior Run
AES Warrior Run is a 180 MW, clean coal-fired cogeneration facility which burns western Maryland coal in a circulating fluidized boiler. Because circulating fluidized bed boilers are notorious for their complicated startup and operational procedures, Raytheon and AES chose the vendor with proven expertise — Emerson Process Management Power & Water Solutions — for the newly constructed plant. Our expertise in CFBs, along with five previous installations with AES, made Emerson the right choice for the project. Using system designs by Raytheon Engineer & Constuctors and Combustion Engineering, Emerson fine-tuned and implemented boiler controls for the Warrior Run project with the Ovation® control and information system. Emerson also worked with Raytheon and AES to jointly design 80 process and 20 manual/auto graphics that are used to control the plant. Flexible workstation configuration allowed several functions to be combined into a single set of electronics, thus minimizing overall system hardware costs.
Warrior Run

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Midland Cogeneration Venture
Midland Cogeneration Venture, a 1500 MW, natural gas-fired plant, was able to upgrade their control system in only two days with the help of Emerson Process Management's automated migration tool. The automated migration tool allowed Midland to migrate its WDPF control system to the Ovation® control and information system with minimal re-engineering, thereby avoiding the lengthy outage typically required for such a project. As with a manual WDPF-to-Ovation migration, Midland was able to retain much of its existing control system investment including existing Q-Line I/O, cabinets, and field wiring — all of which served to significantly lower costs. The automated migration tool also reduced the amount of time needed to convert WDPF graphics and logic code to Ovation's advanced architecture. The look and feel of the operating system, particularly the graphics, were maintained so that the need for additional operator training was minimal. Migration to Ovation using the automated tool helped Midland to avoid potential risks and time penalties associated with re-engineering, which might have taken up to 18 months for a system of Midland's complexity.


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Tennessee Valley Authority, Kingston Steam Plant
To maintain their leading position in the power industry, and to increase the efficiency of the Kingston Steam Plant, TVA identified multiple opportunities where technology improvements could help reduce costs and increase plant efficiency. One area of opportunity was in Kingston's coal yard. Another opportunity for improvement was the existing DCS's inability to compensate for the variable quality of the coal burned at the plant. Emerson Process Management was chosen to help Kingston achieve efficiency improvements in both areas. By automating the coal yard, Kingston was able to reduce personnel costs and maintain centralized control of the entire coal distribution system. The next critical plant improvement was the installation of an Ovation® control and information system. Though TVA had recently installed a Foxboro I/A system, continuing problems with customer support made a change in control systems a necessity. The Ovation system provided the reliability and precision control necessary for TVA to achieve its efficiency goals. Kingston now has the ability to blend coal of variable quality, allowing greater ability to respond to the variations in fuel quality and provide maximum efficiency and optimal emissions.
Kingston

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ATCO Power, Battle River Generating Station
Working with Spartan Controls, another Emerson company with locations throughout Canada, Emerson Process Management Power & Water Solutions will help ATCO power update vintage control systems at its Battle River Generating Station. Emerson will install state-of-the-art Ovation® technology for control of Battle River's burner management and data acquisition systems. The Battle River system also includes an OvationConnect Server for interfacing Ovation to the existing ABB Bailey Infi90 system. OvationConnect provides an easy, cost-effective solution for the problem of obtaining replacement parts for the ABB/Bailey MMIs and also prepares the Battle River plant for a future, completely unified Ovation system. OvationConnect uses an OPC interface for communication between the two systems. A key feature of this interface is centralized historical collection and archiving by the eDB Historian. The eDB Historian provides enterprise-wide data collection, analysis and reporting.

Battle River

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Basin Electric Power Cooperative, Antelope Valley Station
Since it began operation in 1986, Antelope Valley station has consistently ranked among the 10 lowest-cost producers of electricity when compared to more than 400 other coal-fired power plants in the U.S. Changes to the unit 2 control system were required to keep Antelope Valley within the top 10. After review of several qualified vendors, Emerson Process Management and its Ovation® control and information system were selected for Antelope Valley. Ovation replaces a number of control systems including the BTG Benchboard, Bailey 820 Combustion Controls, L&N DEB 300 Steam Temperature and Auxiliary Air Control, Westinghouse W2500 PRODAC Steam Turbine Controls, Bailey Infi90 BFPT, Combustion Engineering FSSS Burner Management System, Diamond Power Soot Blower, Forney AFS 1000 Motor Control, and Paralarm Series 70 Annunciator. Ovation will help Basin Electric to meet some very specific goals. Ovation will help to eliminate redundant signals between the boiler/combustion controls and other DCS subsystems; improve coordinated turbine and boiler controls to improve stability in present base load operation and load capability following; enhance coordination between load following operation and boiler operation by implementing an automatic sliding pressure control algorithm; and optimize controls by implementing new control strategies for over-pressure operation, air heater pluggage, furnace exit temperatures, steam temperature and sootblowing control.

Antelope Valley

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ESM, Globocica, Spilje, Tikvesh, Vrutok, Raven, and Vreben Power Plants
To combat peak electricity demand, Elektrostopanstvo na Makedonija (ESM), a state-owned power company located in Macedonia, is conducting a massive hydropower refurbishment program to enhance the country's biggest hydropower plants. With heavy competition from companies like ABB/Koncar, Alstom and Voith Siemens, Emerson Process Management was chosen to implement the project. Emerson will handle project planning, engineering, coordination and management, as well as equipment design and integration of the six power plants. Ovation® will replace the existing conventional control systems including individual indicators, recorders, switches and push buttons. The new systems will include redundant controllers (one for each unit) plus additional controllers for switchyard control and data acquisition. A Fast Ethernet highway will provide high-speed (100 MB) data transmission. Turbine governors, voltage regulators, PLCs, and other third-party sub-systems will be connected to Ovation with bi-directional wired or radio communication. All Ovation control systems will communicate online with the National Dispatch Center, sending actual status data for the units and receiving new load demand signals. This six-plant project is scheduled for completion at the end of 2004. In addition to helping extend the life of these critical hydropower plants, the Ovation system will allow Macedonia the opportunity to sell its energy to the European market.

Macedonia

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