| CR200J1动车组列供系统电源低频电磁干扰研究 |
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| 引用本文： | 彭新平,李辉.CR200J1动车组列供系统电源低频电磁干扰研究[J].电力机车与城轨车辆,2021(2):38-41. |
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| 作者姓名： | 彭新平 李辉 |
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| 作者单位： | 中车株洲电力机车有限公司 |
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| 摘 要： | 文章分析了四象限整流器的工作原理,对列供系统电源的电场、磁场干扰源进行了分析归纳.在此基础上,对其电磁场发射进行了推导,给出了磁场的频谱特性.最后,测试了 CR200J1动车组列供系统的低频磁场,结果表明其磁场发射依然以2.15 kHz的开关频率为主,差模电流是主要的磁场发射源.
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| 关 键 词： | 列供系统 电磁干扰 低频磁场 动车组 |
Research on low-frequency EMI of power supply in auxiliary power supply system of CR200J1 EMU |
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| PENG Xin-ping,LI Hui.Research on low-frequency EMI of power supply in auxiliary power supply system of CR200J1 EMU[J].Electric Locomotives & Mass Transit Vehicles,2021(2):38-41. |
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| Authors: | PENG Xin-ping LI Hui |
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| Institution: | (CRRC Zhuzhou Locomotive Co.,Ltd.,Zhuzhou 412001,China) |
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| Abstract: | This paper analyzes the working principle of four-quadrant rectifier,and summarizes the electric and magnetic interference source of power supply of auxiliary power supply system.On this basis,the electromagnetic emission is derived and the spectral characteristic of magnetic field is given.Finally,the low-frequency magnetic field of auxiliary power supply system of CR200J1 EMU is measured.The result shows that the major magnetic field emission is occupied by 2.15 kHz switching frequency part,and the differential current is key source of magnetic field emission. |
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| Keywords: | auxiliary power supply system electromagnetic interference(EMI) low-frequency magnetic field EMU |
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