Study on Simulation of Circulation Rejection Control Strategy of MMC-STATCOM System Based on Linear Auto Disturbance Rejection

LIU Jiajun; CHEN Xiaodong

doi:10.14044/j.1674-1757.pcrpc.2017.05.012

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Study on Simulation of Circulation Rejection Control Strategy of MMC-STATCOM System Based on Linear Auto Disturbance Rejection

更新时间：2024-09-14

- Study on Simulation of Circulation Rejection Control Strategy of MMC-STATCOM System Based on Linear Auto Disturbance Rejection
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 38, Issue 5, Pages: 60-65(2017)
- 作者机构：
  
  西安理工大学水利水电学院
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2017.05.012
  CLC： TM761.12
- Published：2017，
- 稿件说明：
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[1]刘家军,陈晓东.基于线性自抗扰的MMC-STATCOM系统环流抑制控制策略仿真研究[J].电力电容器与无功补偿,2017,38(05):60-65.

LIU JIAJUN, CHEN XIAODONG. Study on Simulation of Circulation Rejection Control Strategy of MMC-STATCOM System Based on Linear Auto Disturbance Rejection. [J]. Power capacitor & reactive power compensation, 2017, 38(5): 60-65.
[1]刘家军,陈晓东.基于线性自抗扰的MMC-STATCOM系统环流抑制控制策略仿真研究[J].电力电容器与无功补偿,2017,38(05):60-65. DOI： 10.14044/j.1674-1757.pcrpc.2017.05.012.

LIU JIAJUN, CHEN XIAODONG. Study on Simulation of Circulation Rejection Control Strategy of MMC-STATCOM System Based on Linear Auto Disturbance Rejection. [J]. Power capacitor & reactive power compensation, 2017, 38(5): 60-65. DOI： 10.14044/j.1674-1757.pcrpc.2017.05.012.

摘要

MMC-STATCOM运行时易产生电能质量及控制问题

桥臂环流影响了MMC-STATCOM的工作状态

增大了换流器损耗

且常用环流抑制器的设计对数学模型有精确要求

环流的精确数学模型却不易获得

针对此问题本文设计了一种基于线性自抗扰的环流抑制控制方法

并对在轻载时工程均压策略不能实现电容电压均衡的问题进行改进

所设计的环流抑制器不要求系统的精确模型

具有优异的环流抑制效果

同时

改进均压控制解决了轻载时电容电压均衡问题

并对MMC-STATCOM系统进行整体控制策略设计。最后在PSCAD仿真软件中搭建了MMC-STATCOM系统仿真模型

仿真结果验证了本文所提控制策略的有效性。

Abstract

The MMC-STATCOM is easy to produce power quality and control problems during itsoperation period

the operation condition of MMC-STATCOM is affected by the bridge arm circulation

and the converter’s loss is increased. The design of common circulation suppressor has accuracyrequirement to the mathematics model and

in case of light load

such issue as unable achievement ofcapacitive voltage balance of the engineering grading strategy is improved. The designed circulationsuppressor does not require accuracy model of system and has excellent circulation suppression effect. Atthe same time

the improvement of grading control solves the problem of the balance issue of capacitivevoltage under the light load condition

and the integral control strategy design for the MMC-STATCOMsystem is performed. Finally

the simulation model of MMC-STATCOM system is built in the PSCADsimulation software

and effectiveness of the control strategy mentioned in the paper is illustrated by thesimulation result.

关键词

MMC-STATCOM线性自抗扰改进均压控制系统仿真

Keywords

MMC-STATCOMlinear auto disturbance rejectionimproved grading controlsystem simulation

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