SYSTEMS AND METHODS FOR OPERATING A COMBINED CYCLE POWER PLANT

Embodiments of systems and methods described in this disclosure are directed to operating a combined cycle power plant (100). In certain embodiments, systems and methods can be provided for a combined cycle power plant (100) incorporating a control system (120) that uses a holistic approach to conti...

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Bibliographische Detailangaben
Hauptverfasser:	FISHER, William, SCIPIO, Alston, EKANAYAKE, Sanji, MATHAI, George Vargese, KLOSINSKI, Joseph Philip, WILLIAMS, Jeremy
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY ENGINE PLANTS IN GENERAL ENGINE PLANTS NOT OTHERWISE PROVIDED FOR ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES GAS-TURBINE PLANTS GENERATION HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ACCUMULATORS STEAM ENGINE PLANTS STEAM ENGINES STEAM GENERATION SUPERHEATING OF STEAM WEAPONS
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Beschreibung
Zusammenfassung:	Embodiments of systems and methods described in this disclosure are directed to operating a combined cycle power plant (100). In certain embodiments, systems and methods can be provided for a combined cycle power plant (100) incorporating a control system (120) that uses a holistic approach to continuously and automatically adjust a heat rate of the combined cycle power plant (100) and achieve a desired efficiency. In accordance with one embodiment of the disclosure, the control system (120) can be used to dynamically control various operations of the combined cycle power plant (100), including addressing of certain conflicting requirements such as avoiding generation of superheated steam in an attemperator (230) while concurrently maintaining exhaust emissions within allowable regulatory limits and maintaining exhaust gas temperatures within allowable material capability limits. The use of such a control system (120) allows for an increased turndown capability of the combined cycle power plant (100) along with an improvement in a combined cycle heat rate of the combined cycle power plant (100).