基于SOGI-PLL载波移相的机车谐波抑制技术  

Harmonic Suppression Technology for Locomotive Based on SOGI-PLL Carrier Phase-shift

作　　者：苏鹏程 于森林 詹哲军 张瑞峰 SU Pengcheng;YU Senlin;ZHAN Zhejun;ZHANG Ruifeng(CRRC Yongji Electric Co.,Ltd,Xi’an 710018,China;School of Electrical Engineering,Xi’an University of Technology,Xi’an 710048,China)

机构地区：[1]中车永济电机有限公司,西安710018 [2]西安理工大学电气工程学院,西安710048

出　　处：《电源学报》2023年第2期201-208,共8页Journal of Power Supply

基　　金：中国中车股份有限公司科技研究开发计划资助项目(2020CTA098,2020CKA001-1)。

摘　　要：为了抑制机车四象限脉冲整流器在网侧产生的高频谐波,防止车网发生高次谐波共振,提出一种基于二阶广义积分器锁相环SOGI-PLL(second-order generalized integral phase-locked loop)载波移相控制策略。将锁相环输出的电网相位作为同步基准信号,针对网压频率异常波动,快速同步校正PWM载波周期,保证了各单元之间移相角的准确性,获得最优谐波对消效果。同时,该策略对电网谐波和幅值异常跳变不敏感,具有良好的抗干扰性和自适应性。最后通过半实物仿真和地面联调试验,验证了该策略的可行性和对谐波抑制的有效性。To suppress the high-frequency harmonics generated by locomotive four-quadrant pulse rectifier in the AC current side and prevent the high-order harmonic resonance between the locomotive and power grid,a carrier phaseshift control strategy based on second-order generalized integral phase-locked loop(SOGI-PLL)is proposed.The grid phase output from the PLL is taken as the synchronization reference signal,and aimed at the abnormal fluctuations of grid voltage frequency,the PWM carrier period value can be adjusted quickly and synchronously to ensure the accuracy of phase-shift angle between each unit,thus obtaining the optimal harmonic cancellation effect.Meanwhile,the proposed strategy is insensitive to grid harmonics and amplitude abnormal jump,and has a good anti-interference performance and self-adaptability.Finally,the feasibility of the proposed strategy and the effectiveness of harmonic suppression were verified by hardware-in-the-loop simulations and a ground united adjustment test.

关 键 词：谐波抑制 二阶广义积分锁相环 载波移相 多重化技术 

分 类 号：TM461[电气工程—电器]