电网技术2016，Vol.40Issue(10)：3045-3051,7.DOI:10.13335/j.1000-3673.pst.2016.10.017
适用于多端柔性直流输电系统的快速电压裕度控制策略
Fast Voltage Margin Control Strategy for VSC-MTDC Systems
摘要
Abstract
Switching of traditional voltage margin controller between power control and DC voltage control modes is too tardy,causing slow adjustment of DC voltage.In order to solve this problem,fast voltage margin control strategy is proposed.In this control mode,controller is adjusted by setting weight coefficient related to voltage deviation.Switching process of control mode is ahead of PI controller,thus improving controller respond speed and adjusting speed.Therefore,it is more suitable for VSC-MTDC system.A typical three-terminal MMC based HVDC transmission system (MMC-HVDC) is built for simulation verification based on MATLAB/SIMULINK.Results show that this control strategy can control DC voltage more quickly and effectively compared with traditional voltage margin control strategy.关键词
多端柔性直流输电/电压裕度控制/快速电压裕度控制/电压源换流器/模块化多电平换流器Key words
multi-terminal based VSC-HVDC/voltage margin control/fast voltage margin control/voltage source converter/modular multilevel converter分类
信息技术与安全科学引用本文复制引用
李梅航,刘喜梅,陈朋..适用于多端柔性直流输电系统的快速电压裕度控制策略[J].电网技术,2016,40(10):3045-3051,7.基金项目
国家自然科学基金项目(61401244).Project Supported by National Natural Science Foundation of China (61401244). （61401244）
