混合级联多电平换流器型静止同步补偿器的优化设计

DU Yi

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混合级联多电平换流器型静止同步补偿器的优化设计

更新时间：2025-08-13

- 混合级联多电平换流器型静止同步补偿器的优化设计
- Automation of Electric Power Systems Vol. 39, Issue 6, Pages: 88-94(2015)
- 作者机构：
  
  浙江大学电气工程学院,浙江省,杭州市,310027
- 作者简介：
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- DOI：
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- Published：2015
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DU Yi. [J]. Automation of electric power systems, 2015, 39(6): 88-94.
DOI：

DU Yi. [J]. Automation of electric power systems, 2015, 39(6): 88-94. DOI：

摘要

研究了混合级联多电平换流器型静止同步补偿器(HCMC-STATCOM)。对两电平换流器的直流电压和整形电路的模块个数进行了优化设计;对两电平换流器和整形电路的直流电容纹波电压进行了数学建模

为电容参数设计提供了理论基础;对HCMC-STATCOM与链式静止同步补偿器进行了对比研究

结果表明HCMC-STATCOM能够有效减少H桥的模块数目

同时能够显著减少储能电容的容量

有利于减少装置的成本及其占地面积。在PSCAD／EMTDC仿真平台上搭建了35 kV／±100 Mvar的HCMC-STATCOM仿真模型

仿真结果表明了HCMC-STATCOM拓扑结构的可行性和理论分析的正确性。

Abstract

A static synchronous compensator based on the hybrid cascaded multilevel converter (HCMC-STATCOM) is studied. The DC voltage of a two-level converter and the number of H-bridge sub-modules in wave-shaping circuit (WSC) are optimized. The DC capacitor ripple voltage of the two-level converter and WSC has been mathematically modeled to provide a theoretical basis for the parameter design of the DC capacitor. Comparison of the HCMC-STATCOM with the cascaded STATCOM shows that: the HCMC-STATCOM has less modules of cascaded H-bridge while appreciably reducing the DC capacitor capacity

which means the cost and size of the device will be reduced. A simulation platform of 35 kV/±100 Mvar HCMC-STATCOM has been built on PSCAD/EMTDC. The results of the simulation have verified the feasibility of the topology and the correctness of the theoretical analysis.

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