基于多重化电流跟踪控制的电力机车辅助变流器抑制车网谐振的方法  

Scheme for Suppressing Resonance Oscillation by Auxiliary Converter of Electric Locomotive Based on Multiple-Current Command Tracking

作　　者：慕玫君 林飞[1] 杨中平[1] 刘诗慧[1] 张润泽[1] Mu Meijun;Lin Fei;Yang Zhongping;Liu Shihui;Zhang Runze(School of Electrical Engineering Beijing Jiaotong University,100044,China)

机构地区：[1]北京交通大学电气工程学院,北京100044

出　　处：《电工技术学报》2018年第A01期139-148,共10页Transactions of China Electrotechnical Society

基　　金：国家科技部"十三五"重点研发计划资助项目(2016YFB1200506-18)

摘　　要：电力机车运行过程中会向牵引网注入谐波,并可能与车网耦合引发谐振事故,为此该文提出一种基于多重化电流跟踪控制的电力机车辅助变流器抑制车网谐振的方法。该方法在辅助电源的四象限变流器控制中引入有源滤波功能,在完成正常整流功能的同时,通过检测变压器一次电流,提取谐波电流指令,并采用多重比例谐振(M-PR)控制器跟踪多重化的电流指令产生补偿电流,以抑制网侧电压谐振。该文还分析M-PR控制器的参数设计,并定量分析补偿精度的影响因素。Matlab/Simulink仿真及RT-LAB半实物平台的实验验证了该方法的有效性。Under the condition of the resonance phenomenon caused by electric locomotive,a scheme for suppressing resonance oscillation by auxiliary converter of electric locomotive based on multiple current tracking control was proposed.The active filter function was applied to the control of auxiliary four quadrant converter.The filter function was obtained by detecting the primary side current of the transformer,generating the compensation current to suppress the voltage resonance at the network.This paper analyzed and designed the parameters of the multiple proportional resonance(M-PR)controller,and quantitatively analyzed the influencing factors of the compensation accuracy.The effectiveness of the proposed method was verified by Matlab/Simulink simulation and RT-LAB experiment.

关 键 词：电力机车 车网谐振 辅助变流器 比例谐振 有源滤波 

分 类 号：TM461[电气工程—电器]