一种新型的辅助逆变器谐波消除控制算法  

A New Harmonic Elimination Control Algorithm for Auxiliary Inverter

作　　者：李骄松 马法运 夏猛 毕京斌 LI Jiao-song;MA Fa-yun;XIA Meng;BI Jing-bin(CRRC Qingdao Sifang Rolling Stock Research Institute Co.,Ltd.,Qingdao 266114,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266114

出　　处：《电力电子技术》2021年第2期70-72,共3页Power Electronics

基　　金：国家重点研发计划(2017YFB1200900)。

摘　　要：为解决列车辅助变流器因变频空调、整流供电设备等非线性负载导致的输出电压畸变、谐波含量过高等问题,在此采用低通滤波反馈二阶广义积分器(LPF-SOGI)获取电压正交信号,通过数字锁相环(PLL)获取输出电压幅值相位信息。同时在同步旋转坐标系下利用相位补偿比例积分谐振(PC-PIR)控制算法进行谐波补偿,达到降低输出电压谐波含量的目的。最后通过仿真软件和变流器样机测试表明,该算法可以显著降低列车辅助变流器因非线性负载引起的谐波电压,提高输出电压波形质量。In order to solve the problem of output voltage distortion and high harmonic content caused by nonlinear loads such as auxiliary converter air-conditioners and rectifier power supply equipments,the low pass filter second-order generalized integrator(LPF-SOGI)is used to obtain the voltage orthogonal signal and then voltage phase information is obtained by digital phase-locked loop(PLL).At the same time,the phase compensation proportion integral resonant(PC-PIR)control algorithm is used for harmonic compensation in the synchronous rotating coordinate system to reduce the harmonic content of the output voltage.Finally,the proposed algorithm can significantly reduce the harmonic voltage of the auxiliary converter caused by the nonlinear load,and improve the output voltage waveform quality by the software simulation and converter test.

关 键 词：辅助变流器 谐波消除 二阶广义积分器 

分 类 号：TM46[电气工程—电器]