Operational strategies for dispatchable combined cycle plants, Part I

Journal Article · Mon Jul 01 04:00:00 EDT 1996 · Turbomachinery International

OSTI ID:420888

Nolan, J P; Landis, F P ^[1]

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1. Brush Cogeneration Facility, Brush, CO (United States)

The Brush Cogeneration Facility is a dual-unit, combined cycle, cogeneration plant operating in a daily cycling, automatically-dispatchable mode. According to the PSCO tariff for cogenerators, the Independent Power Production Facility Policy, the highest payment schedule is reserved for those facilities capable of automatic generation control (AGC), the so-called `Category 4A Facilities.` AGC entails the ability to receive microwave signals from PSCO`s Load Control Center at Lookout Mountain, Colorado, and automatically adjust output at a rate of 2% of contract maximum load per minute, over at least the top 40% of contract load range. Perhaps the most critical equipment modification enabling AGC was the re-enabling of automatic variable inlet guide vane (IGV) control. During control system modifications for automatic IGVs, the operators realized that the Woodward NetCon control system`s capabilities of control, monitoring and information display were better than anticipated. The relative ease with which IGV changes were made encouraged the operating team to continue to maximize efficiency and optimize plant operations. In fact, the ease of use and modification led to the purchase of an additional NetCon system for plant-wide performance monitoring. The retrofit of the gas turbine control system with the NetCon system was a success. 1 tab.

• OSTI ID: 420888
• Journal Information: Turbomachinery International, Journal Name: Turbomachinery International Journal Issue: 4 Vol. 37; ISSN 0149-4147; ISSN TUINDP
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
COGENERATION
COMBINED-CYCLE POWER PLANTS
DESIGN
DUAL-PURPOSE POWER PLANTS
ECONOMICS
FOSSIL-FUEL POWER PLANTS
GAS TURBINES
PERFORMANCE
PROFITS
SPECIFICATIONS