Control Strategy of Large-scale DFIG-based Wind Farm for Power Grid Frequency Regulation
With the integration of large-scale wind farm, the frequency security of power grid may be impacted due to the lack of frequency regulation support from wind turbines which caused by the traditional decoupling control system. In order to enable doubly fed induction generator (DFIG) wind turbine to participate in the power grid frequency regulation, active power output of the wind turbine should be controlled with request. A control strategy to regulate active power output for DFIG has been proposed in this paper. Once the DFIG is controlled at the deloading operation condition with some power reserves, the rotor kinetic energy together with the power reserves can be well used to support the system frequency regulation. Simulation results have shown the frequency control effect and the behaviors of the DFIGs with such frequency control strategy, validating the feasibility and the effectiveness of the proposed control strategy.
Doubly fed induction generator (DFIG) active power control power reserve frequency regulation
CAO Zhangjie WANG Xiaoru TAN Jin
Academy of Electrical Engineering, Southwest Jiaotong University, Chengdu of Sichuan 610031
国际会议
The 31st Chinese Control Conference(第三十一届中国控制会议)
合肥
英文
6835-6840
2012-07-01（万方平台首次上网日期，不代表论文的发表时间）