Study on Voltage Balance Control Strategy at DC Side of Cascaded STATCOM

FAN Jianjun

doi:10.14044/j.1674-1757.pcrpc.2018.03.011

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Study on Voltage Balance Control Strategy at DC Side of Cascaded STATCOM

更新时间：2024-09-14

- Study on Voltage Balance Control Strategy at DC Side of Cascaded STATCOM
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 39, Issue 3, Pages: 58-63(2018)
- 作者机构：
  
  国网山东省电力公司德州供电公司
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2018.03.011
  CLC： TM761.12
- Published：2018，
- 稿件说明：
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[1]范建军.级联型STATCOM直流侧电压均衡控制策略研究[J].电力电容器与无功补偿,2018,39(03):58-63+69.

FAN JIANJUN. Study on Voltage Balance Control Strategy at DC Side of Cascaded STATCOM. [J]. Power capacitor & reactive power compensation, 2018, 39(3): 58-63.
[1]范建军.级联型STATCOM直流侧电压均衡控制策略研究[J].电力电容器与无功补偿,2018,39(03):58-63+69. DOI： 10.14044/j.1674-1757.pcrpc.2018.03.011.

FAN JIANJUN. Study on Voltage Balance Control Strategy at DC Side of Cascaded STATCOM. [J]. Power capacitor & reactive power compensation, 2018, 39(3): 58-63. DOI： 10.14044/j.1674-1757.pcrpc.2018.03.011.

摘要

近年来

级联型静止同步补偿器（static synchronous compensator

STATCOM）的应用愈来广泛

保证STATCOM中各H桥子模块单元的直流侧电压均衡是维持整个系统稳定运行的基本前提。本文针对级联型STATCOM的直流侧电压均衡控制问题

首先简要介绍了级联型STATCOM的基本原理;然后

提出一种改进排序均压控制策略

其在传统排序机制的基础上引入H桥子模块状态反馈控制

在保证各H桥子模块单元电容电压合理的波动范围内

明显减小了其开关器件的动作次数

进而降低了各H桥子模块的开关损耗和延长了其使用寿命。最后

通过仿真和实验对该控制策略的有效性进行了验证。

Abstract

In recent years

the cascade static synchronous compensator（STATCOM）has found wide and wide application and assurance of voltage balance at DC side in each H bridge sub-model unit in the STATCOM is the basic premise to maintain the stability of the entire system.In this paper

as for the issue of balance control of voltage at DC side of cascaded STATCOM

the basic principle of cascaded STATCOM is firstly and briefly introduced.Then

an improved sorting balancing control strategy is proposed.The status feedback control of H bridge sub-model is introduced on the basis of traditional sorting mechanism

which reduces remarkably the operation times of the switching elements and thereby reduces switching loss and extends its operation life while assuring the capacitive voltage of each H-bridge module unit within reasonable fluctuation range.Finally

the effectiveness of the control strategy is verified by simulation and experiment.

关键词

静止同步补偿器（STATCOM）排序H桥均压控制

Keywords

static synchronous compensator（STATCOM）sortingH-bridgegrading control

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