电力建设2017，Vol.38Issue(8)：67-72,6.DOI:10.3969/j.issn.1000-7229.2017.08.009
不同调度模式下VSC-MTDC系统的协调控制策略
Coordinated Control Strategy of VSC-MTDC System Under Different Power Dispatching Modes
摘要
Abstract
Aiming at the real-time power flow distribution requirement of DC power system in three kinds of dispatching modes,this paper designs a coordinated control strategy for voltage source converter multi-terminal direct current (VSC-MTDC) system,which can change the value of droop coefficient and switch control mode to meet the DC power flow distribution.In order to avoid frequent switching of the control mode,a hysteresis comparator is added to the controller of the receiving end converter station.In the end,this paper constructs a four-terminal VSC-MTDC mode in PSCAD/EMTDC,and simulates the DC grid in different scheduling modes.The results show that,compared with the traditional control method with constant droop coefficient,this coordinated control strategy can meet the real-time power flow distribution requirements of the power system,and the transmission flexibility of the DC power grid is improved.关键词
多端直流输电(multi-terminaldirectcurrent,MTDC)/电力调度/直流电网/潮流分布/滞环比较器Key words
multi-terminal direct current (MTDC)/power dispatching/DC network/power flow distribution/hysteresis comparator分类
信息技术与安全科学引用本文复制引用
邓旗,张英敏,李志晗..不同调度模式下VSC-MTDC系统的协调控制策略[J].电力建设,2017,38(8):67-72,6.基金项目
国家重点研发计划(2016YFB0900901)Project supported by project of China Nation Key Research and Development Plan (2016YFB0900901) （2016YFB0900901）
