Methods and apparatus for pitch control power conversion
US7126236B2 · kind B2 · utility
35Cited by
13References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2005 |
| Grant date | Oct 24, 2006 |
| Priority date | — |
| Expiry date | Mar 15, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/72
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.