电动汽车移动式无线充电系统动态建模与特性分析  

Dynamic Modeling and Characteristic Analysis on Dynamic Wireless Charging System of Electric Vehicle

作　　者：郭彦杰[1,2] 王丽芳[1,3] 李树凡 张玉旺[1] 廖承林[1,3] 

机构地区：[1]中国科学院电力电子与电气驱动重点实验室,中国科学院电工研究所,北京市100190 [2]汽车安全与节能国家重点实验室,清华大学,北京市100084 [3]北京电动车辆协同创新中心,北京市100081

出　　处：《电力系统自动化》2017年第2期73-78,共6页Automation of Electric Power Systems

基　　金：国家自然科学基金资助项目(51507168);国家科技支撑计划资助项目(2015BAG17B06);北京市科技计划资助项目(D15110900290000)

摘　　要：移动式无线充电系统能够显著减少电动汽车动力电池的携带量,具有广阔的应用前景。文中基于分段式多发射导轨方案,建立了电动汽车移动式无线充电系统的状态空间模型,进而推导出能够描述系统动态特性的小信号模型。搭建了试验平台,利用实际系统参数研究了移动充电过程中系统输出功率和效率的动态变化过程,以及导轨切换开通过程中系统的瞬态特性,并分析了不同切换开通位置对瞬态过程的影响。通过实验对建立的模型和分析得到的结论进行了验证。The dynamic wireless charging system can significantly reduce the weight and size of electric vehicle（EV）power batteries.Hence it has broad application prospects.A state-space model of dynamic wireless EV charging system is developed first based on the segmented multi-track scheme.Also,a system small-signal model is obtained to describe the dynamic characteristics.Then,with the help of an experimental platform and the actual values of system variables,dynamic changes in system output power and efficiency are analyzed in the dynamic charging process.Furthermore,the transient characteristics in the track switch-on process are investigated,as is the influence of switching position.Meanwhile,experiments are conducted to verify the proposed model and analysis conclusions.

关 键 词：移动式无线充电系统 动态模型 移动充电动态过程 导轨切换瞬态过程 

分 类 号：TM910.6[电气工程—电力电子与电力传动] TM724