MMC-RPC的反推矢量控制策略  

Backstepping vector control strategy for MMC-RPC

作　　者：宋平岗 龙日起 杨长榄 雷文琪 郑雅芝 SONG Pinggang;LONG Riqi;YANG Changlan;LEI Wenqi;ZHENG Yazhi(College of Electrical and Automation Engineering,East China Jiaotong University,Nan chang,Jiangxi 330013,China)

机构地区：[1]华东交通大学电气与自动化工程学院,江西南昌330013

出　　处：《机车电传动》2022年第1期134-141,共8页Electric Drive for Locomotives

基　　金：国家自然科学基金项目(51367008)。

摘　　要：为解决传统牵引网中存在的负序、无功和谐波等电能质量问题,在模块化多电平换流器结构的铁路功率调节器(MMC-RPC)中,引入反推控制理论设计电流内环,以此替代传统双闭环电流内环,提出了一种适用于MMC-RPC的反推矢量控制策略。首先建立了MMC-RPC数学模型;其次详细论述了反推矢量控制策略的原理及设计过程;最后以V/v变压器供电方式为例,在MATLAB/Simulink中搭建了MMC-RPC仿真模型进行仿真。仿真结果表明,与传统双闭环矢量控制相比,该控制策略在系统参数变化时能够稳定跟踪给定信号,提高系统的动静态性能和鲁棒性,具有更低的电流谐波失真。In order to solve the power quality problems of negative sequence,reactive power and harmonics in the traditional traction network,in the modular multilevel converter structure of railway power conditioner(MMC-RPC),by introducing the backstepping control theory to design the current inner loop instead of the traditional double closed-loop current inner loop design,a backstepping vector control strategy suitable for MMC-RPC was proposed.Firstly,the mathematical model of MMC-RPC was established.Secondly,the principle and design process of the backstepping vector control strategy were discussed in detail.Finally,taking the V/v transformer power supply as an example,the MMC-RPC simulation model was built by MATLAB/Simulink.Compared with the traditional double closedloop vector control simulation,the results show that the control strategy can stably track the given signal when the system parameters change,improve the dynamic and static performance and robustness of the system,and have lower current harmonic distortion.

关 键 词：模块化多电平换流器 铁路功率调节器 单相 反推理论 矢量控制 

分 类 号：U233.5[交通运输工程—道路与铁道工程] TM72[电气工程—电力系统及自动化]