摘要
通过对dq0坐标系下电压源换流器模型的分析,得到了电压源换流器增广被控对象的状态空间方程。利用H∞控制理论,设计了基于电压源换流器的高压直流输电系统的定直流电压、定直流功率、定无功功率控制器。根据MATLAB建立的仿真模型,对上述控制器进行了仿真实验。仿真结果表明,所设计的H∞控制器具有良好的控制性能,达到了设计要求。
Through the analysis on the model of voltage source converter （VSC） in dqO coordinate system, the state space equation of the augmented controlled object of VSC is obtained. According to H∞ control theory, the constant DC voltage controller, the constant active power controller and the constant reactive power controller for VSC-HVDC power transmission system are designed. These controllers are simulated by the simulation model constructed by MATLAB, and simulation results show that the designed controllers based on H∞ theory possess good control performance and the predetermined control requirements are achieved.
出处
《电网技术》
EI
CSCD
北大核心
2009年第9期35-39,共5页
Power System Technology
基金
国家自然科学基金资助项目(50577018)~~
关键词
电压源换流器高压直流输电
H∞控制
电压源换
流器
voltage source converter-high voltage direct current transmission （VSC-HVDC）
H∞ control
voltage source converter （VSC）
