摘要
为了进一步改善高压直流 ( HVDC)输电系统的性能 ,采用在逆变侧定无功电流控制方式代替传统的定熄弧角控制 ,并将现代控制理论中非线性系统的状态反馈精确线性化方法与线性系统的变结构控制理论相结合 ,设计了非线性变结构控制器。仿真结果表明 ,所设计的新型控制器能够改善直流系统的性能 。
To improve the performance of high-voltage direct-current transmission (HVDC) system, the constant reactive current control is used to take the place of the traditional constant firing angle control on the side of the inverter. A design method of HVDC controllers is presented in this paper, which is based on the feedback linearization method of nonlinear systems and the variable-structure control theory of linear systems. The simulation results show that the new controller can not only improve the performance of DC systems, but also enhance the voltage stability of AC systems.
出处
《电力系统自动化》
EI
CSCD
北大核心
2003年第4期6-9,共4页
Automation of Electric Power Systems
基金
国家重点基础研究专项经费资助项目 (G19980 2 0 311)
国家电力公司重大科技项目资助 (SP11- 2 0 0 1- 0 1- 0 8)
