VSC-HVDC主电路拓扑及其调制策略分析与比较

DING Guanjun; DING Ming; TANG Guangfu

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VSC-HVDC主电路拓扑及其调制策略分析与比较

更新时间：2025-08-13

- VSC-HVDC主电路拓扑及其调制策略分析与比较
- Automation of Electric Power Systems Vol. 33, Issue 10, Pages: 64-68(2009)
- 作者机构：
  
  1. 合肥工业大学电气与自动化工程学院,安徽省,合肥市,230009
  2. 中国电力科学研究院,北京市,100192
- 作者简介：
- 基金信息：
- DOI：
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- Published：2009
- 稿件说明：
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DING Guanjun, DING Ming, TANG Guangfu. [J]. Automation of electric power systems, 2009, 33(10): 64-68.
DOI：

DING Guanjun, DING Ming, TANG Guangfu. [J]. Automation of electric power systems, 2009, 33(10): 64-68. DOI：

摘要

立足电压源换流器（VSC）-高压直流（HVDC）输电工程实际，旨在解决选用何种VSC拓扑方能使VSC-HVDC输电达到最佳性能，即找出相对最优的VSC拓扑及其调制策略。结合相应衡量指标，首先比较研究了两电平VSC采用不同调制策略时的特性，此比较研究较好平衡了两电平VSC谐波特性与开关频率这一对矛盾体;接着，对此比较研究中得出的相对最优拓扑与两电平12脉动、三电平二极管钳位及模块化多电平VSC间的特性进行分析;最后，得出结论:基于特定次谐波消除脉宽调制的两电平VSC与模块化多电平VSC为切实可行的2种换流器

Abstract

Based on the requirements of VSC-HVDC transmission projects， this paper aims to find out the suitable VSC topology to obtain the best performance of VSC-HVDC， i.e.， relatively optimal VSC topology and related modulation scheme. Firstly， considering relevant measurement indexes， the performances of two-level VSC adopting different modulation schemes are compared. This comparison study balances the contradiction between the harmonic property and switching frequency of two-level VSC. Then， the performances of the relatively optimal topology obtained in this comparison study， two-level 12-pulses， three-level neutral point clamped（NPC） and modular multilevel VSC are also compared. Finally， the conclusion is drawn that two-level VSC based selective harmonic elimination PWM（SHEPWM） and modular multilevel VSC are most feasible， and each has their own application features. In addition， combined with the demands of practical VSC-HVDC engineering construction， the basic methods and experience of equipment type selection are presented and verified by simulations.

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