电力系统自动化Issue(17)：201-207,7.DOI:10.7500/AEPS20150402012
考虑三相负荷平衡的电动汽车有序充电策略
A Coordinated Charging Strategy for Electric Vehicle Three-phase Load Balance
摘要
Abstract
Three-phase unbalance may occur in distribution networks with large-scale charging loads of electric vehicles (EVs) plugged in,which significantly threatens the operation of power networks.Most coordinated EVs charging strategies are based on the assumption of single-phase power networks to the neglect of three-phase unbalance problems.A coordinated charging strategy for EVs considering three-phase load balance is proposed.In the outer layer of the proposed strategy,the three-phase backward/forward sweep load flow algorithm is used to iteratively update the node voltages.In the inner layer of the proposed strategy,a three-phase coordinated EV charging optimal model is created and solved based on the updated node voltages.By optimizing the charging power and charging periods of EVs,the objectives of the optimal model,power loss reduction and the three-phase load balance,are achieved.Simulation results show that the proposed strategy can eliminate the three-phase unbalance problems,reduce power losses and flatten the load curve,guaranteeing the economics and security of operation of the power network.关键词
电动汽车/有序充电/三相不平衡/配电网Key words
electric vehicle/coordinated charging/three-phase unbalance/distribution networks引用本文复制引用
占恺峤,胡泽春,宋永华,徐智威,贾龙,张洪财..考虑三相负荷平衡的电动汽车有序充电策略[J].电力系统自动化,2015,(17):201-207,7.基金项目
国家高技术研究发展计划(863计划)资助项目(2011AA05A110)。This work is supported by National High Technology Research and Development Program of China (863 Program)(No.2011AA05A110) （863计划）
