基于单星MMC的新型STATCOM及其控制策略

WANG Mingda

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基于单星MMC的新型STATCOM及其控制策略

更新时间：2025-08-13

- 基于单星MMC的新型STATCOM及其控制策略
- Automation of Electric Power Systems Vol. 39, Issue 18, Pages: 108-113(2015)
- 作者机构：
  
  电网智能化调度与控制教育部重点实验室(山东大学),山东省,济南市,250061
- 作者简介：
- 基金信息：
- DOI：
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- Published：2015
- 稿件说明：
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WANG Mingda. [J]. Automation of electric power systems, 2015, 39(18): 108-113.
DOI：

WANG Mingda. [J]. Automation of electric power systems, 2015, 39(18): 108-113. DOI：

摘要

通过分析基于级联半桥子模块双星形结构的模块化多电平变换器(MMC)拓扑

提出了一种基于单星形MMC的静止同步补偿器(STATCOM)拓扑结构

并与级联H桥STATCOM等拓扑进行了比较。该拓扑只采用双星MMC的一半

比级联H桥星形STATCOM节省13.4％的绝缘栅双极型晶体管(IGBT)。采用电流直接控制策略

给出了单星MMC-STATCOM的电容电压多层次控制方案及一种相间电容电压平衡控制改进方案

该方案不需要对零序电压注入量进行复杂计算。此外

还搭建了10 kVA实验样机。仿真和实验结果表明

所提的单星MMC-STATCOM具有优良的动静态特性

验证了所提控制方案的可行性和有效性。

Abstract

Through an analysis of a modular multilevel converter (MMC) based on the double-star chopper-cells (DSCC) configuration

a static synchronous compensator (STATCOM) topology using the MMC based on the single-star chopper-cells (SSCC) configuration is presented

which is compared with the STATCOM based on single-star bridge cells (SSBC)

single-delta bridge cells (SDBC) and DSCC configurations. The proposed SSCC-based MMC-STATCOM uses only half the number of the DSCC-based MMC-STATCOM and can save about 13.4% of the insulated gate bipolar translators (IGBTs) than the SSBC-based STATCOM. A comprehensive capacitor voltage control strategy using direct current control for the SSCC-based MMC-STATCOM is presented

along with an improved phase-phase capacitor voltage balance control scheme. The improved scheme does not have to perform complex calculations on zero sequence voltage compensation quantity. Furthermore

a 10 kVA experimental prototype of three-phase SSCC-based MMC-STATCOM is developed. In the end

simulation and experimental results have proved that the proposed SSCC-based MMC-STATCOM possesses excellent dynamic and static characteristics

while the proposed topology of STATCOM and its control schemes are feasible and effective. This work is supported by National Natural Science Foundation of China (No. 51177091

No. 51177095).

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