Patent ID: 9698715
Date: 2017-07-04
CPC Classifications: F03D,H02P,Y02E

Claim:
1. A method of generating auxiliary power for a wind turbine, said wind turbine comprising a generator, a main converter, an auxiliary converter and an uninterruptable power supply, wherein an output of the auxiliary converter is connected to a DC node of said uninterruptible power supply, and wherein said generator is configured to provide power via said main converter to a power transmission system, and wherein the auxiliary converter is connected to a power output of said generator and comprises a first converter configured to convert AC to DC power, and wherein the uninterruptible power supply comprises an electrical storage system, a second converter configured to convert AC to DC power and an inverter, said method comprising: converting at least part of the power generated by said generator using the auxiliary converter; and supplying the power converted by said auxiliary converter to an AC auxiliary power distribution system of the wind turbine, wherein said AC auxiliary power distribution system is connected to at least one AC output of the uninterruptible power supply.