WIND TURBINE POWER GENERATING SYSTEM

PROBLEM TO BE SOLVED: To always generate power in high efficiency corresponding to a large change of a wind power. SOLUTION: A wind turbine power generating system comprises an induction generator 2 driven by a windmill 1, a DC bus 4 connected to a DC power source 12, a bidirectional converter 3 int...

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Bibliographische Detailangaben
Hauptverfasser:	KITANO ICHIRO, URANO ICHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS BLASTING CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROL OR REGULATION THEREOF CONTROLLING CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION HEATING LIGHTING MACHINES OR ENGINES FOR LIQUIDS MECHANICAL ENGINEERING OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR PHYSICS PRODUCING MECHANICAL POWER REGULATING SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES SYSTEMS FOR STORING ELECTRIC ENERGY WEAPONS WIND MOTORS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To always generate power in high efficiency corresponding to a large change of a wind power. SOLUTION: A wind turbine power generating system comprises an induction generator 2 driven by a windmill 1, a DC bus 4 connected to a DC power source 12, a bidirectional converter 3 interposed between the generator 2 and the bus 4, and an arithmetic unit 33 for calculating the AC frequency. A synchronizing speed lower therein than a rotating speed of the generator 2 detected by a rotary encoder 26 is calculated and the frequency of the converter 3 is controlled according to the calculated frequency.