弱供电网下的牵引网侧谐波抑制及测试研究  

Research on harmonic suppression and test of traction network with weak power supply

作　　者：曾凡飞 杨其林 孔宴伟 尚付磊 林显琦 ZENG Fanfei;YANG Qilin;KONG Yanwei;SHANG Fulei;LIN Xianqi(CRRC Qingdao Sifang Rolling Stock Research Institute Co.,Ltd.,Qingdao 266000,China)

机构地区：[1]中车青岛四方车辆研究所有限公司,山东青岛266000

出　　处：《电气应用》2022年第5期41-46,共6页Electrotechnical Application

摘　　要：以马来西亚吉隆坡机场快铁为应用背景,分析弱牵引网供电下的牵引网侧谐波抑制措施和网侧谐波测试分析方法。通过优化动车组网侧四象限整流器的开关器件选型、提高开关频率和优化电流环控制策略等手段提升动车组网侧性能,以匹配弱供电能力的牵引供电网。在牵引变电所采集不同列车运用工况下的网侧电压和网侧电流数据,利用MATLAB的M语言进行网侧数据的离线计算和谐波分析。测试对比原西门子车和自主化新车在同一供电网下的网侧谐波,数据表明新车加入后的网侧电压和网侧电流总谐波畸变率(THD)均小于原车工况。研究内容对弱供电网下的牵引网侧谐波抑制和网侧谐波测试研究具有指导意义。Taking Kuala Lumpur airport express railway in Malaysia as the application background, the network harmonic suppression and harmonic test methods under weak traction network power supply is analyzed. In order to match the weak traction network, improve the performance of the EMU by optimizing the switching device selection of the four quadrant rectifier, increasing the switching frequency, optimizing the current loop control strategy and other means. The network voltage and current data under different train operation conditions are collected in the traction substation, and the off-line calculation and harmonic analysis of the data are carried out by using the M language of MATLAB. Test and compare the network side harmonics of the original Siemens car and the autonomous new car under the same power supply network. The data shows that after the new car is added the total harmonic distortion rate(THD) of network voltage and current is less than that of the original car. This research has guiding significance for the research of traction network harmonic suppression and harmonic test under weak power supply network.

关 键 词：弱供电网 四象限整流器 谐波抑制 谐波测试 

分 类 号：U223.63[交通运输工程—道路与铁道工程]