System and method for reactive power control of a wind turbine by varying switching frequency of rotor side converter
US10742149B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2019 |
| Grant date | Aug 11, 2020 |
| Priority date | — |
| Expiry date | Apr 22, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E40/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and associated system for operating a power generation system to provide real and reactive power to a load includes, with a power converter having switching elements, receiving power from a generator and generating the reactive power within an operating range of generator rotor speed. As the generator rotor speed changes and approaches synchronous speed, a control command is generated to decrease a switching frequency of the switching elements in the power converter from a first switching frequency to a second switching frequency, wherein the reactive power output of the power converter is maintained or increased at the second switching frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.