RECONFIGURATION OF THE REACTIVE POWER LOOP OF A WIND POWER PLANT

摘要

The present invention relates a method of controlling a wind power plant connected to an electrical grid, the wind power plant comprises a power plant controller (350), a plurality of wind turbine generators (1) and a STATCOM (230), with a STATCOM controller, comprises: controlling the plurality of wind turbine generators in a first control mode, with the power plant controller controlling a reactive power production from each of the plurality of wind turbine generators according to a closed loop control scheme, and controlling in a first control mode with a closed loop control scheme a reactive power production from the STATCOM according to a first setpoint dispatched from the power plant controller, and controlling the reactive power production from the STATCOM in a second control mode from the STATCOM controller according to an electrical measurement in the grid, and controlling the plurality of wind turbine generators in a second control mode, with the power plant controller controlling a reactive power production from the plurality of wind turbine generators, according to a feedforward control or a close loop control, based on a second setpoint from the STATCOM controller, and switching between the first control mode and the second control mode when receiving at least one trigger signal. The invention also relates to a wind power plant according to the method.

主权项

1. A method for controlling a wind power plant connected to an electrical grid, the wind power plant comprising a power plant controller, a plurality of wind turbine generators and a STATCOM, the STATCOM having a STATCOM controller, the method comprising:
controlling the plurality of wind turbine generators in a first control mode, with the power plant controller controlling a reactive power production of each of the plurality of wind turbine generators according to a closed loop control scheme, controlling in the first control mode with a closed loop control scheme a reactive power production of the STATCOM according to a first setpoint dispatched from the power plant controller, controlling the reactive power production of the STATCOM in a second control mode from the STATCOM controller according to an electrical measurement in the grid, controlling the plurality of wind turbine generators in the second control mode, with the power plant controller controlling a reactive power production of the plurality of wind turbine generators, according to a feedforward control or a close loop control, based on a second setpoint dispatched from the STATCOM controller, and switching between the first control mode and the second control mode when receiving at least one trigger signal.