电力系统自动化Issue(11)：8-15,8.DOI:10.7500/AEPS20140421001
基于直流电压-有功功率特性的 VSC-MTDC 协调控制策略
A Coordinated Control Strategy for VSC-MTDC System Based on DC Voltage-Active Power Characteristic
摘要
Abstract
A coordinated control strategy of voltage source converter based on multi-terminal direct current (VSC-MTDC) transmission system for integrating large-scale offshore wind power is proposed.With the typical five-terminal DC transmission system as an example,a coordinated control strategy based on local controller among converter stations is put forward,as is an improved descent control strategy for assistant converter station as well as an improved control strategy for active power control (APC) converter station,respectively based on DC voltage-active power characteristic,and the working modes of the two converter stations are analyzed.The parameter selection method of assistant and APC converter station is presented via DC power flow distribution and max/min operation mode. Simulations via PSCAD/EMTDC are conducted to validate the coordinated DC voltage control method under normal,master converter station fault and assistant converter station fault conditions,respectively.Results show that this method is able to guarantee the active power allocation of VSC-MTDC transmission system with good control effects. This work is supported by National Natural Science Foundation of China(No.6132010601 1,No.5 1347008).关键词
电压源换流器/直流输电/多端直流/协调控制Key words
voltage source converter(VSC)/direct current transmission/multi-terminal direct current (MTDC)/coordinated control引用本文复制引用
任敬国,李可军,张春辉,赵建国,梁永亮..基于直流电压-有功功率特性的 VSC-MTDC 协调控制策略[J].电力系统自动化,2015,(11):8-15,8.基金项目
国家自然科学基金重大国际(地区)合作研究项目(61320106011) （地区）
国家自然科学基金资助项目(51347008)。 （51347008）
