摘要
综合考虑道路条件和车辆工况适应性、能量转化高效性、运行可靠性等实用性指标,该文设计了一种“工”型导轨式电动汽车移动式无线充电系统,以提高电动汽车续航里程、缩短充电时间。通过仿真对耦合机构及其电磁屏蔽机构进行了设计、优化,分析了系统电能无线传输的稳定性和抗偏移能力;为提高其传输效率对耦合机构磁芯结构进行了优化。同时对其高频电能变换结构和道路施工进行了分析、设计。通过在河北省张北县建设百米级移动式无线充电试验路段,对系统功能、工作性能及电磁安全进行了测试评估。在额定功率20kW、行驶速度40km/h条件下,系统平均效率达到76%,验证了该文所设计结构在工程上的可行性。
A new I-type guideway for electric vehicle wireless power transfer system is designed to improve recharging mileage and shorten charging time, considering road conditions, adaptability of working conditions, high efficiency of energy conversion and reliability. The coupler and its electromagnetic shielding structure are designed and optimized with simulation, and the stability and anti-offset ability of power wireless transmission are analyzed. The ferrite structure of the coupler is optimized to improve its transmission efficiency. Besides, the structure of high frequency power conversion and road construction are analyzed and designed. A 100?meter dynamic wireless charging test road section in Zhangbei County is constructed to evaluate system function, performance and electromagnetic safety. At rated power 20kW and driving speed 40km/h, average efficiency of the system reaches 76%, verifying engineering feasibility of the structure designed in this paper.
作者
刘超群
魏斌
吴晓康
王松岑
徐锦星
LIU Chaoqun;WEI Bin;WU Xiaokang;WANG Songcen;XU Jinxing(China Electric Power Research Institute,Haidian District,Beijing 100192,China)
出处
《电网技术》
EI
CSCD
北大核心
2019年第6期2211-2218,共8页
Power System Technology
基金
国家电网有限公司科技项目(DGB17201700113)~~
关键词
电动汽车
移动式无线充电
百米级试验路段
工程化应用
测试与评估
electric vehicle
dynamic wireless charging
100-meter test road section
engineering application
testing and evaluation
