Steam turbine generating plant control system - has loop operating turbine nozzles in parallel operated dependent on load-related steam pressure

The control system for a sliding pressure steam turbine generating plant is for turbines with multiple control nozzles functioning is parallel. These are operated by one regulator controlled by a first generator for a load related main stem pressure desired value. A second determines the desired con...

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Bibliographische Detailangaben
Hauptverfasser:	SAKAI,AKIRA, MATSUMURA,JUBE
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	BLASTING ENGINE PLANTS IN GENERAL ENGINE PLANTS NOT OTHERWISE PROVIDED FOR ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ACCUMULATORS STEAM ENGINE PLANTS STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	The control system for a sliding pressure steam turbine generating plant is for turbines with multiple control nozzles functioning is parallel. These are operated by one regulator controlled by a first generator for a load related main stem pressure desired value. A second determines the desired control valve opening and a thir generates a correction to the first output signal, based on the difference between desired and actual valve opening. A fourth unit controls inputs to the boiler, to bring the main steam pressure actual value in to line with the corrected output from the first unit.