Control of Wind Power Plant for Cooperation with Conventional Power Generation Unit and HVDC Classic Link

This paper focuses on the control of wind power plant equipped with doubly-fed induction generators (DFIG) for its cooperation with conventional generation unit and HVDC classic link. DFIG wind turbine and wind power plant voltage control are presented in detail. Also their influences on power system voltage stability are analyzed. Besides DFIG wind power plant, synchronous generators and monopolar HVDC classic link are also considered. For synchronous generator, conventional controllers are employed: governor, exciter and power system stabilizer (PSS). For the HVDC classic converters, the V-I controllers are applied. In this paper, the capability of DFIG wind power plant to improve power system dynamic behavior is presented. Simulation results show that the DFIG wind power plant and wind turbine voltage control strategy will reinforce the power system voltage stability.