Power generating system and hydraulic control system

Disclosed is a hydraulic control system for controlling a variable ratio transmission of a power generating system. The power generating system includes a rotor or turbine (101) adapted to be driven by a fluid at variable speed and an electrical generator (103) adapted to be driven at a constant or...

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Bibliographische Detailangaben
Hauptverfasser:	SCOTT PETER JOHN, SILVESTER MATTHEW JAMES, HENDERSON GEOFFREY MORGAN, TRUDGIAN RICHARD JAMES
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR ELECTRICITY ENGINEERING ELEMENTS AND UNITS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GENERATION HEATING HYDRAULICS OR PNEUMATICS IN GENERAL INDEXING SCHEME RELATING TO MACHINES OR ENGINES OTHER THANNON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, TO WIND MOTORS,TO NON-POSITIVE DISPLACEMENT PUMPS, AND TO GENERATING COMBUSTIONPRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04 LIGHTING MACHINES OR ENGINES FOR LIQUIDS MECHANICAL ENGINEERING OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR PRODUCING MECHANICAL POWER REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE THERMAL INSULATION IN GENERAL WEAPONS WIND MOTORS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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Beschreibung
Zusammenfassung:	Disclosed is a hydraulic control system for controlling a variable ratio transmission of a power generating system. The power generating system includes a rotor or turbine (101) adapted to be driven by a fluid at variable speed and an electrical generator (103) adapted to be driven at a constant or variable speed, the transmission coupling the rotor or turbine (101) to the electrical generator (103). The hydraulic control system has a hydraulic motor/pump unit (104) adapted to be operably connected to a superposition gear. The hydraulic motor/pump unit (104) is connected to a hydraulic circuit with an orifice and/or a relief valve configured to open at a predetermined hydraulic pressure. The hydraulic circuit switches between a variable low-speed operating mode and a torque limiting high-speed operating mode. In, the torque limiting high-speed operating mode, the hydraulic motor/pump unit (104) is adapted to be driven by the superposition gear and operates as a pump to drive hydraulic fluid through the orifice and/or relief valve to provide a passive torque limiting function. In the variable low-speed operating mode the hydraulic motor/pump unit (104) is adapted to be driven as a motor to drive the superposition gear. The hydraulic control system is configured to provide a desired rotor speed by controlling hydraulic fluid flow rate through the hydraulic motor/pump unit (104).