摘要
分析了传统的基于双闭环的电压源型高压直流输电系统(VSC-HVDC)的控制结构。针对设置控制参数过于繁琐,提出了一种综合型的控制策略。首先利用微分几何方法简化整流侧控制参数的选择;同时结合改进的锁相环(PLL),克服了系统频率波动时对系统控制性能的影响;最后设计了逆变侧控制器。仿真结果表明,该控制策略在简化控制参数设置的同时又使系统具有较好的控制特性。
An integrative improved control system is proposed to solve the problems of complicated control parameter setting in conventional control system of VSC-HVDC.Differential geometry method is used to simplify the choice of the control parameters in rectifier.And the advanced PLL system is adopted to overcome the adverse effects on the control performance when the system frequency fluctuates.Finally,the control system of the inverter is designed.It is verified by PSCAD that dynamic response of the system can be improved and the setting of the control parameters can be simplified.
出处
《华东电力》
北大核心
2011年第4期551-555,共5页
East China Electric Power
基金
国家自然科学基金资助项目(50777066)~~
