A preventive control strategy for static voltage stability based on an efficient power plant model of electric vehicles  

作　　者：Mingshen WANG Yunfei MU Hongjie JIA Jianzhong WU Xiuping YAO Xiaodan YU Janaka EKANAYAKE 

机构地区：[1]Key Laboratory of Smart Grid of Ministry of Education,Tianjin University,Tianjin 300072,China [2]School of Engineering,Institute of Energy,Cardiff University,Wales CF103BN,UK [3]State Grid Xinjiang Electric Power Company,Urumqi 830002,China

出　　处：《Journal of Modern Power Systems and Clean Energy》2015年第1期103-113,共11页现代电力系统与清洁能源学报（英文）

基　　金：This work was supported in part by the National Natural Science Foundation of China(collaborating with EPSRC of UK)(Nos.51361130152 and EP/L001039/1);the National Science and Technology Support Program of China(No.2013BAA01B03);Research on Reactive Power Control and Comprehensive Evaluation Technique of Large Scale Integration of Wind/Photovoltaic Power Generation(No.NY71-14-035).

摘　　要：With the increasing integration of wind farms and electric vehicles(EVs)in power systems,voltage stability is becoming more and more serious.Based on vehicle-to-grid(V2G),an efficient power plant model of EVs(E-EPP)was developed to estimate EV charging load with available corresponding response capacity under different charging strategies.A preventive control strategy based on E-EPP was proposed to maintain the static voltage stability margin(VSM)of power system above a predefined security level.Two control modes were used including the disconnection of EV charging load(‘V1G’mode)and the discharge of stored battery energy back to power grid(‘V2G’mode).A modified IEEE 14-bus system with high penetration of wind power and EVs was used to verify the effectiveness of preventive control strategy.Simulation results showed that the proposed strategy can not only improve the static voltage stability of power system with considerable wind generation,but also guarantee the travelling comfort for EV owners.

关 键 词：Electric vehicle(EV) Vehicle-to-grid(V2G) Efficient power plant(EPP) Preventive control Static voltage stability 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]