Voltage Balancing Method Based on Real-time PWM Allocation for Chained-type STATCOM

ZHANG Chunpeng; HONG Chao; SHI Dan

doi:10.14044/j.1674-1757.pcrpc.2015.04.001

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Voltage Balancing Method Based on Real-time PWM Allocation for Chained-type STATCOM

更新时间：2024-09-14

- Voltage Balancing Method Based on Real-time PWM Allocation for Chained-type STATCOM
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 36, Issue 4, Pages: 1-5(2015)
- 作者机构：
  
  1. 清华大学电机系
  2. 南方电网科学研究院
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2015.04.001
  CLC： TM761.12
- Published：2015，
- 稿件说明：
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[1]张春朋,洪潮,史丹.基于PWM实时分配的链式STATCOM均压控制方法[J].电力电容器与无功补偿,2015,36(04):1-5.

ZHANG CHUNPENG, HONG CHAO, SHI DAN. Voltage Balancing Method Based on Real-time PWM Allocation for Chained-type STATCOM. [J]. Power capacitor & reactive power compensation, 2015, 36(4): 1-5.
[1]张春朋,洪潮,史丹.基于PWM实时分配的链式STATCOM均压控制方法[J].电力电容器与无功补偿,2015,36(04):1-5. DOI： 10.14044/j.1674-1757.pcrpc.2015.04.001.

ZHANG CHUNPENG, HONG CHAO, SHI DAN. Voltage Balancing Method Based on Real-time PWM Allocation for Chained-type STATCOM. [J]. Power capacitor & reactive power compensation, 2015, 36(4): 1-5. DOI： 10.14044/j.1674-1757.pcrpc.2015.04.001.

摘要

功率单元的直流电压失衡是影响链式STATCOM稳定运行的核心问题

长期以来没有得到很好的解决。文章提出了一种基于PWM实时分配的均压控制方法

介绍了其基本原理和实施方法

并通过仿真验证了该方法在STATCOM满出力、小出力、阶跃出力以及低电压穿越等多种工况下的有效性。根据实际应用经验可知

采用该方法的STATCOM都能够长期安全稳定运行。

Abstract

Voltage imbalance of power units is the key problem degrading the operating stability of STATCOM

which so far has not been solved with satisfaction. This paper proposes a voltage balancing method based on the real-time allocation of PWMs

and describes its principle and implementation. It is validated by simulations under several scenarios including full power

low power

step power and low-voltage-riding-through. According to field application experiences

it is known that all the STATCOMs adopting this method are capable of operating stably in a long term.

关键词

静止同步补偿器电压均衡链式换流器脉宽调制实时控制

Keywords

static synchronous compensatorvoltage gradingchained-type converterpulse width modulationreal-time control

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Related Institution

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