电力建设2017，Vol.38Issue(8)：59-66,8.DOI:10.3969/j.issn.1000-7229.2017.08.008
一种VSC-MTDC系统的综合协调控制策略
Comprehensive Coordination Control Strategy for VSC-MTDC System
摘要
Abstract
This paper proposes a comprehensive coordinated control strategy,which is aimed at the different degrees of unbalance power in DC network.The margin droop control strategy,which is considering both the voltage droop on DC line resistance and the power margin of converter station in the design of operating characteristic curve of droop control,is introduced in the active-power controller,to ensure the stability of DC voltage when the unbalanced power is too large or the converter station out of operation.Transient simulation and analysis by establishing a simulation model of the five-terminal flexible DC transmission system in PSCAD/EMTDC show that not only the proposed control strategy can optimize the power flow when there is a large unbalance power in the DC network,but also the DC voltage has a strong rigidity,and the stability of the VSC-MTDC (voltage source converter multi-terminal direct current) system also has been improved.关键词
下垂控制/协调控制/直流电阻/功率裕度/潮流最优Key words
droop control/coordination control/DC resistance/power margin/optimal power flow分类
信息技术与安全科学引用本文复制引用
邓旗,张英敏,曾琦,张立奎,李志晗..一种VSC-MTDC系统的综合协调控制策略[J].电力建设,2017,38(8):59-66,8.基金项目
国家重点研发计划项目(2016YFB0900901) （2016YFB0900901）
Project supported by National Key Research and Development Program of China(2016YFB0900901) （2016YFB0900901）
