Fast run-back control including plant losses

摘要

The present invention relates to a method for operating a wind power plant, with at least one wind turbine generator and a power plant controller, the method includes the steps of receiving a request to reduce active power output from the wind power plant, dispatching a reference set point to the at least one wind turbine generator to lower a voltage level of the least one wind turbine generator, and the at least one wind turbine generator controls the voltage level of the least one wind turbine generator, to a new lower set point. The present invention also relates to a wind power plant where the method is implemented.

主权项

1. A method of operating a wind power plant comprising a plurality of wind turbine generators (WTGs) coupled with a power plant controller, the plurality of WTGs comprising at least one first WTG and at least one second WTG, the method comprising:
upon determining to reduce an active power output of the wind power plant at a plant ramp down rate that would cause the first WTG to exceed a maximum generator ramp down rate corresponding to the first WTG:
reducing a voltage level of the first WTG from an initial voltage level to a reduced voltage level; andoperating the second WTG at a different voltage level than the reduced voltage level of the first WTG, wherein operation of the first WTG at the reduced voltage level causes an increase of active power losses within the wind power plant, whereby the active power output of the wind power plant is reduced at the plant ramp down rate without causing the first WTG to exceed the maximum generator ramp down rate.