摘要
Although the deployment of alternating current(AC)-busbar plug-in electric vehicle(PEV)charging station with photovoltaic(PV)is a promising alternative,the interaction among subsystems always causes the instability problem.Meanwhile,the conventional generalized Nyquist criterion(GNC)is complex,and it is not suitable for the design of the AC system.Therefore,this paper proposes a modified infinityone-norm(MION)stability criterion based on the impedance method to assess the stability of the foresaid charging station.Firstly,the typical structure and operation modes of the charging station are studied.Furthermore,each subsystem impedance matrix is built by small-signal method,and the MION stability criterion based on impedance method is proposed to assess the charging station stability.Compared with the previous simplified stability criteria based on the norm,the proposed criterion has lower conservatism.Furthermore,the design regulation for the controller parameters is provided,and the stability recovery way is provided by connecting the doubly-fed line and energy storage equipment,which are selected based on intermediate variable,i.e.,short-circuit ratio(SCR).Finally,the effectiveness and conservatism of the proposed stability criterion are validated through simulation and experimental results.
基金
supported by National Key Research and Development Program of China(No.2018YFA0702200)
National Natural Science Foundation of China(No.61773109)
Major Program of National Natural Foundation of China(No.61573094)
作者简介
Rui Wang received the B.S.degree in Northeastern University,Shenyang,China,in 2016.He is currently pursuing the Ph.D.degree in the School of Information Science and Engineering,Institute of Automation,Northeastern University,Shenyang,China.Since 2019,he has become a visiting scholar with the Energy Research Institute,Nanyang Technological University,Singapore,Singapore.He has authored or coauthored over 30 papers,authorized over 10 invention patents.His current research interests include collaborative optimization of distributed generation and its stability analysis of electromagnetic timescale in Energy Internet.e-mail:1610232@stu.neu.edu.cn;corresponding author:Qiuye Sun received the Ph.D.degree from Northearstern University,Shenyang,China,in 2007.He is currently a full Professor with Northeastern University,and obtained Special Government Allowances from the State Council in China.He has authored or coauthored over 200 papers,authorized over 100 invention patents,and published over 10 books or textbooks.His current research interests include optimization analysis technology of power distribution network,network control of energy internet,integrated energy systems and microgrids.e-mail:sunqiuye@ise.neu.edu.cn;Dehao Qin received the B.S.and M.Sc.degrees in Northeastern University,Shenyang,China,in 2017 and 2020,respectively.He is currently pursuing the Ph.D.degree in the College of Engineering,Computing and Applied Sciences,Clemson University,Clemson,USA.His current research interest includes collaborative control strategy of distributed generation in Energy Internet.e-mail:mattqin1216@outlook.com;Yushuai Li received the B.S.degree in electrical engineering and automation,and the Ph.D.degree in control theory and control engineering from the Northeastern University,Shenyang,China,in 2014 and 2019,respectively.He is currently a postdoctoral research scholar in the Department of Electrical and Computer Engineering,University of Denver,Denver,USA.His current research interests include distributed control and optimization,machine learning with applications in microgrids,smart grid and energy internet.e-mail:lysise@126.com;Xiangke Li received the B.Eng.degree in Electrical Engineering from Northwestern Polytechnical University,Xi’an,China,in 2016,where he is currently working toward the Ph.D.degree in electrical engineering at the School of Automation.Since 2018,he has become a visiting scholar with the Energy Research Institute,Nanyang Technological University,Singapore.His research interests include modeling,design and control of switched-capacitor converters,distributed generations and microgrids.e-mail:N1906398J@e.ntu.edu.sg;Peng Wang received the B.Sc.degree in electronic engineering from Xi’an Jiaotong University,Xi’an,China,in 1978,the M.Sc.degree from Taiyuan University of Technology,Taiyuan,China,in 1987,and the M.Sc.and Ph.D.degrees in electrical engineering from the University of Saskatchewan,Saskatoon,Canada,in 1995 and 1998,respectively.Currently,he is a full Professor with the School of Electrical and Electronic Engineering at Nanyang Technological University,Singapore.His current research interests include power system planning and operation,renewable energy planning,solar/electricity conversion system and power system reliability analysis.e-mail:epwang@ntu.edu.sg
