Methods and apparatus for electric power grid frequency stabilization

An electric power grid frequency control sub-system for a combined-cycle power system (100) is provided. The electric power grid frequency control sub-system for a combined-cycle power system includes a steam turbine (138) including a steam flow control valve (136), a steam source (124) coupled in f...

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Bibliographische Detailangaben
Hauptverfasser:	ANDREW, PHILIP LYNN, MELSERT, TIMOTHY ANDREW, FORD, JOHN EDWARD
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY ENGINE PLANTS IN GENERAL ENGINE PLANTS NOT OTHERWISE PROVIDED FOR ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GENERATION HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION STEAM ACCUMULATORS STEAM ENGINE PLANTS STEAM ENGINES SYSTEMS FOR STORING ELECTRIC ENERGY TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS
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Beschreibung
Zusammenfassung:	An electric power grid frequency control sub-system for a combined-cycle power system (100) is provided. The electric power grid frequency control sub-system for a combined-cycle power system includes a steam turbine (138) including a steam flow control valve (136), a steam source (124) coupled in flow communication with the steam turbine through the control valve, the steam source including a thermal energy reservoir, a combustion turbine (112) including an inlet guide vane (102), an electric power generator coupled to at least one of the steam turbine and the combustion turbine, the electric power generator electrically coupled to an electric power grid (164), a frequency of the generator and the grid being synchronized at an operating frequency of the grid, a controller (162) configured to modulate the steam flow control valve and the inlet guide vane substantially simultaneously to facilitate inducing a predetermined rate of a grid frequency recovery for a predetermined period of time wherein the predetermined rate of frequency recovery is substantially uniform.