电力工程技术2017，Vol.36Issue(2)：21-26,87,7.
多端柔性直流输电系统直流电压模糊控制策略
Research of DC Voltage Fuzzy Control Strategy for VSC-MTDC Systems
摘要
Abstract
The DC voltage droop control strategy is often used for the voltage source converter based muIti-terminal HVDC which power flow is changed frequently. But the existing DC voltage droop control can not meet the requirements of different operating conditions on the droop parameters. This paper presents a DC voltage droop control strategy based on fuzzy control. By using the fuzzy control theory, the conventional DC voltage droop control strategy is converted to the variable droop control which is changed according to operating conditions. Finally, a four terminal VSC-HVDC is built and simulated in PSCAD/EMTDC which is connected with Matlab. The simulation results demonstrate that the DC voltage fuzzy control strategy can maintain the stability of the system and accelerate system's recovery speed effectively.关键词
柔性直流输电/多端柔性直流输电/直流电压控制/直流电压斜率控制/模糊控制Key words
VSC-HVDC/multi-terminal DC transmission/DC voltage control/DC voltage droop control/fuzzy control分类
信息技术与安全科学引用本文复制引用
刘志江,夏成军,杜兆斌..多端柔性直流输电系统直流电压模糊控制策略[J].电力工程技术,2017,36(2):21-26,87,7.基金项目
国家自然科学基金(51577071)和广东省自然科学资金(2015 A030313202) （51577071）
