摘要
针对常导磁悬浮列车低速阶段直线发电机供电不足的问题,提出一种车载电源供电解决方案。该方案通过在地面定子端增设发射线圈,并复用车载端原有的直线发电机线圈,实现列车低速运行时的充足供电。采用仿真分析方法,系统比较槽间电流相角差分别为180°、90°、60°、45°、36°和30°的6种发射线圈排列方式,最终确定90°相角差的排列方案最优。同时,建立直线发电机气隙磁场理论计算模型,推导气隙磁场分布和发电线圈感应电压的解析计算公式,由此确认10 kHz为发射线圈注入电流的最佳频率和安匝数为110安匝时可以满足列车低速时的供电需求,且系统的效率为75.16%。理论计算与仿真结果相互验证,证实了地面增设发射线圈、车载复用发电线圈这一技术方案的可行性。
This paper proposed an innovative onboard power supply solution to address the insufficient power supply from linear generators during the low-speed operation of conventional electromagnetic suspension maglev trains.The solution achieved sufficient power supply during the low-speed operation of the train by adding transmitting coils on the ground stator side and reusing the vehicle’s existing linear generator coils.Through simulation analysis,six transmitting coil arrangements with current phase angle differences of 180°,90°,60°,45°,36°,and 30°were compared,with the 90°phase angle difference configuration proving optimal.A theoretical calculation model of the linear generator’s air-gap magnetic field was established,with analytical expressions for calculating the air-gap magnetic field distribution and the induced voltage in the generator coils being derived.The results show that a 10 kHz excitation current and 110 ampere-turns meet low-speed power demands with 75.16%system efficiency.Both theoretical and simulation results confirm the feasibility of this ground-transmitting-coil and onboard-reused-coil approach.
作者
张坤
王浩运
唐志远
付善强
高信迈
武文超
ZHANG Kun;WANG Haoyun;TANG Zhiyuan;FU Shanqiang;GAO Xinmai;WU Wenchao(School of Electrical Engineering,Southwest Jiaotong University,Chengdu 611756,China;National Key Laboratory of High-speed Maglev Transportation Technology,CRRC Qingdao Sifang Rolling Stock Co.,Ltd.,Qingdao 266000,China;CRRC Qingdao Sifang Rolling Stock Co.,Ltd.,Qingdao 266000,China;China Railway Electrification Bureau Group Beijing Electrification Engineering Co.,Ltd.,Beijing 100036,China)
出处
《铁道学报》
北大核心
2025年第7期196-202,共7页
Journal of the China Railway Society
基金
中车青岛四方机车车辆股份有限公司企业合作项目(SF/CF-徐字-2024-485,SKLM-SFCF-2024-002)。
关键词
非接触供电
直线发电机
齿槽效应
常导磁浮
non-contact power supply
linear generator
alveolar effect
electromagnetic suspension magle
