Backstepping vector control strategy for MMC-RPC

SONG Pinggang; LONG Riqi; YANG Changlan; LEI Wenqi; ZHENG Yazhi

doi:10.13890/j.issn.1000-128X.2022.01.022

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Backstepping vector control strategy for MMC-RPC

Railway Electrification | 更新时间：2024-08-02

- Backstepping vector control strategy for MMC-RPC
- Electric drive for locomotives Issue 1, Pages: 134-141(2022)
- 作者机构：
  
  华东交通大学电气与自动化工程学院，江西南昌　 330013
- 作者简介：
- 基金信息：
- DOI：10.13890/j.issn.1000-128X.2022.01.022
  CLC： U233.5;TM72
- Published：10 January 2022，
  
  Received：08 May 2020，
  
  Revised：19 November 2021，
- 稿件说明：
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SONG Pinggang, LONG Riqi, YANG Changlan, et al. Backstepping vector control strategy for MMC-RPC. [J]. Electric drive for locomotives (1):134-141(2022)
DOI：

SONG Pinggang, LONG Riqi, YANG Changlan, et al. Backstepping vector control strategy for MMC-RPC. [J]. Electric drive for locomotives (1):134-141(2022) DOI： 10.13890/j.issn.1000-128X.2022.01.022.

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。

Abstract

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

Keywords

modular multilevel converterrailway power conditionersingle phasebackstepping theoryvector control

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