一种适用于多端直流系统的模块化多电平潮流控制器

XU Feng

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一种适用于多端直流系统的模块化多电平潮流控制器

更新时间：2025-08-13

- 一种适用于多端直流系统的模块化多电平潮流控制器
- Automation of Electric Power Systems Vol. 39, Issue 3, Pages: 95-102(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：
- 基金信息：
- DOI：
  CLC：
- Published：2015
- 稿件说明：
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XU Feng. [J]. Automation of electric power systems, 2015, 39(3): 95-102.
DOI：

XU Feng. [J]. Automation of electric power systems, 2015, 39(3): 95-102. DOI：

摘要

为有效解决现有晶闸管潮流控制器在故障下所存在的严重过电压问题

提出了一种基于全桥模块化多电平换流器的模块化多电平潮流控制器。首先

对多端环网结构进行了系统分析

然后指出并分析了晶闸管潮流控制器的过电压问题。针对模块化多电平潮流控制器

通过子模块状态分析

指出了其故障过电压穿越内在机理

提出了过流保护措施

并设计了相应控制策略用于潮流控制。最后

在PSCAD／EMTDC仿真平台上搭建了相关模型

针对模块化多电平潮流控制器的电流调节、双向运行以及过电压穿越三方面特性

进行了仿真分析。仿真结果表明:模块化多电平潮流控制器能够较好地调节潮流

且响应时间较短

各种故障情况下都能很好地实现过电压穿越。

Abstract

In order to resolve the problem of serious over-voltage on the existing thyristor based power flow controller under faults

a modular multilevel power flow controller based on the full-bridge modular multilevel converter is proposed. First

the loop network structure of multi-terminal DC is analyzed

and then

the problem of over-voltage with the thyristor power flow controller is presented and analyzed. Through an analysis of the full-bridge sub-module operating state

the intrinsic mechanism of the over-voltage breakthrough concerning the modular multilevel power flow controller is pointed out

and the corresponding control strategies for control of the power flow are designed. Finally

the current regulation

bidirectional operation and over-voltage ride-through of the modular multilevel power flow controller are simulated via a model with PSCAD/EMTDC. The results show that the modular multilevel power flow controller has good performance on current regulation

needs a short response time

and is able to realize over-voltage ride-through whatever the fault is.

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