电力系统自动化2017，Vol.41Issue(4)：131-135,169,6.DOI:10.7500/AEPS20160418001
新型直流电网潮流控制器及其控制方法
Novel Power Flow Controller for DC Grid and Its Control Method
摘要
Abstract
The DC power flow controller can effectively improve the control degree of freedom of power flows in looped DC grids to help solve the problem of uncontrollable power flow in some DC lines.In light of the limitations of existing DC power flow controllers in actual applications,a new topology of DC power flow controller is proposed to regulate the power flow by managing power exchange between the transmission lines.And its working principle and operation characteristics are analyzed.A general control strategy based on pulse-width modulation (PWM) is designed for various kinds of running state of this topology.With one of the working states as an example,the relations between different state variables are researched.Finally,an equivalent model for a three-terminal DC grid is developed in the electro-magnetic transient simulation soft.The simulation results have verified the feasibility and effectiveness of the proposed topology and control strategy of the DC power flow controller.关键词
直流电网/环网/潮流控制器/等效模型/新型拓扑Key words
DC grid/looped network/DC power flow controller/equivalent model/new topology引用本文复制引用
何荣凯,朱晋,霍群海,韦统振..新型直流电网潮流控制器及其控制方法[J].电力系统自动化,2017,41(4):131-135,169,6.基金项目
国家自然科学基金资助项目(51607171).This work is supported by National Natural Science Foundation of China (No.51607171). （51607171）
