直流微网供电的电动汽车无线充电站控制策略  

Research on the Control Strategy of Electric Vehicle Wireless Charging Station Powered by DC Microgrid

作　　者：王呈轩 樊艳芳[1] 李弘昌 高伟鹏 马健 WANG Chengxuan;FAN Yanfang;LI Hongchang;GAO Weipeng;MA Jian(School of Electrical Engineering,Xinjiang University,Urumqi 830046,Xinjiang,China;Electric Power Research Institute of State Grid Xinjiang Electric Power Co.,Ltd.,Urumqi 830011,Xinjiang,China)

机构地区：[1]新疆大学电气工程学院,新疆乌鲁木齐830046 [2]国网新疆电力有限公司电力科学研究院,新疆乌鲁木齐830011

出　　处：《电网与清洁能源》2022年第10期126-134,共9页Power System and Clean Energy

基　　金：国家自然科学基金资助项目(51767023);自治区高校科研计划自然科学项目(XJEDU2020Y010)。

摘　　要：以电动汽车无线充电站为研究背景,并采用直流微网为其供电。为保证微网能够向充电站自用负荷与电动汽车提供可靠的电能,提出分层控制的方法。上层控制器负责运行状态的判断与底层控制器的管理,底层控制器包括风光互补发电的MPPT控制器、混合储能功率分配控制器、脉冲密度调制器和车载电池充电控制器。其中脉冲密度调制有效精简了无线电能传输系统的结构,保证输出电压稳定的同时,确保系统工作效率最高。在Matlab/Simulink中搭建直流微网供电的电动汽车无线充电系统的仿真模型,建立了无线电能传输系统的实验平台,通过仿真与实验验证了策略的有效性与系统的可行性。This paper uses wireless charging stations for electric vehicles as the research background and uses DC microgrids to supply power. In order to ensure that the microgrid can provide reliable electrical energy to the charging station’s own loads and electric vehicles,a layered control method is proposed. The upper controller is responsible for the judgment of the running state and the management of the bottom controller.The bottom controller includes the MPPT controller for wind and photovoltaic power generation,the hybrid energy storage power distribution controller,the pulse density modulator and the onboard battery charging controller, where pulse density modulation effectively simplifies the structure of the wireless power transmission system,and while ensuring the stability of the output voltage,it also ensures the maximum efficiency of the system. The simulation model of the electric vehicle wireless charging system powered by DC microgrid is built in Matlab/Simulink,and the experimental platform of the wireless power transmission system is established. The feasibility of the system and the effectiveness of the strategy are verified through simulation and experimental results.

关 键 词：无线电能传输 脉冲密度调制 电动汽车 直流微网 分层控制 

分 类 号：TM724[电气工程—电力系统及自动化]