Methods and apparatus for pitch control power conversion

Details Methods and apparatus for pitch control power conversion Methods and apparatus for pitch control power conversion

2006-10-24

2006-10-24

Ponomarenko, Nicholas (Department: 2834)

Prime-mover dynamo plants

Electric control

Fluid-current motors

C290S055000, C322S037000

Reexamination Certificate

active

07126236

ABSTRACT:
A method for powering a pitch motor drive system for at least one DC pitch motor of a wind turbine includes rectifying a voltage using a bridge circuit to thereby supply a DC link voltage to a bridge comprising active switching devices, and utilizing at least one link capacitor to smooth the DC link voltage and act as an energy sink and source for the DC pitch motor or motors.

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European Search Report; 5 pages; Jun. 12, 2006.

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