VSC-HVDC系统H_∞控制器设计  

Design of H_∞ Controller for VSC-HVDC Systems

作　　者：梁海峰[1] 王松[1] 李庚银[1] 赵成勇[1] 

机构地区：[1]电力系统保护与动态安全监控教育部重点实验室(华北电力大学),北京市昌平区102206

出　　处：《电网技术》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)~~

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.

关 键 词：电压源换流器高压直流输电 H∞控制 电压源换 流器 

分 类 号：TM761[电气工程—电力系统及自动化]