浙江电力

2019, v.38;No.280(08) 59-64

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MMC-HVDC系统的模糊PI优化控制
Fuzzy PI Optimal Control of MMC-HVDC System

康忠健,张梓霖,李鑫,赵振东
KANG Zhongjian,ZHANG Zilin,LI Xin,ZHAO Zhendong

摘要(Abstract):

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 dualterminal 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.

关键词(KeyWords): MMC-HVDC;控制策略;模糊PI控制
MMC-HVDC;control strategy;fuzzy PI control

Abstract:

Keywords:

基金项目(Foundation): 国家电网有限公司科技项目(XT71-18-007)

作者(Author): 康忠健,张梓霖,李鑫,赵振东
KANG Zhongjian,ZHANG Zilin,LI Xin,ZHAO Zhendong

DOI: 10.19585/j.zjdl.201908010

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