陈博怡,李兴源,张奇伟.面向风电场并网的VSC-MTDC频率控制策略研究[J].电测与仪表,2016,53(14):. Chen Boyi,Li Xingyuan,Zhang Qiwei.Frequency control strategy of VSC-MTDC about wind power grid[J].Electrical Measurement & Instrumentation,2016,53(14):.
面向风电场并网的VSC-MTDC频率控制策略研究
Frequency control strategy of VSC-MTDC about wind power grid
This paper constructs a three-terminal system connecting wind farm based VSC-MTDC. DC response have the advantages of strong and fast controllability, VSC-HVDC have the characteristics of control active power and reactive power independently and quickly.Therefore, a coordinated control method of VSC-HVDC and governor is presented in this paper, in virtue of setting additional frequency control in the constant active power controller to improve AC system frequency stability.Theoretical analysis and simulation results show that the proposed control strategy can improve the frequency adjustment ability of multi-terminal HVDC system,it can effectively improve the system frequency stability when the system is disturbed.