摘要
MMC-HVDC(基于模块化多电平换流器的高压直流输电)是近几年我国电力系统的重点研究方向。为了优化MMC-HVDC系统控制策略,将模糊控制和PI(比例积分)控制相结合,设计了模糊PI控制器,实现对PI参数进行实时调节的功能。使用MATLAB/Simulink仿真软件搭建了双端有源31电平MMC-HVDC系统仿真模型,对比分析传统PI控制器和模糊PI控制器下的仿真波形。分析结果表明,所设计的模糊PI控制器能有效提高双端有源MMC-HVDC系统的稳态响应特性和鲁棒性,提高电能质量。
MMC-HVDC(modular multilevel converter based high-voltage direct current)is a key research direction in domestic power system in recent years.In order to optimize MMC-HVDC control strategy,fuzzy control and PI(proportional integral)control are combined to design a PI controller for real-time adjustment of PI parameters.By use of MATLAB/Simulink simulation software,the MMC-HVDC simulation model of dual-terminal 31-level active power is built,and the simulation waveforms of the two controllers are compared.The simulation results show that the designed fuzzy PI controller can improve steady-state response characteristics and robustness of dual-terminal 31-lelvel active power as well as the power quality.
作者
康忠健
张梓霖
李鑫
赵振东
KANG Zhongjian;ZHANG Zilin;LI Xin;ZHAO Zhendong(Department of Electrical Engineering,China University of Petroleum(East China),Qingdao Shandong 266580,China)
出处
《浙江电力》
2019年第8期59-64,共6页
Zhejiang Electric Power
基金
国家电网有限公司科技项目(XT71-18-007)
