Methods and apparatus for pitch control power conversion

A method for powering a pitch motor drive system (400) for at least one DC pitch motor (410) of a wind turbine (100) includes rectifying a voltage using a bridge circuit (402) to thereby supply a DC link voltage to a bridge (404) comprising active switching devices (406), and utilizing at least one...

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Bibliographische Detailangaben
Hauptverfasser:	WANNER, JR. DAVID GERARD, HARBOURT, CYRUS DAVID, EDMUNDS, HOWARD ROSS, MELIUS, JEFFREY ALAN, RIDENOUR, AMY MARLENE, WILKINSON, ANDREW SCOTT
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS 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 PRODUCING MECHANICAL POWER WEAPONS WIND MOTORS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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Beschreibung
Zusammenfassung:	A method for powering a pitch motor drive system (400) for at least one DC pitch motor (410) of a wind turbine (100) includes rectifying a voltage using a bridge circuit (402) to thereby supply a DC link voltage to a bridge (404) comprising active switching devices (406), and utilizing at least one link capacitor (408) to smooth the DC link voltage and act as an energy sink and source for the DC pitch motor or motors (410). +1 -44