含DC-DC变换器的直流电网拓扑结构及其运行控制

YAO Liangzhong

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含DC-DC变换器的直流电网拓扑结构及其运行控制

更新时间：2025-08-13

- 含DC-DC变换器的直流电网拓扑结构及其运行控制
- Automation of Electric Power Systems Vol. 40, Issue 11, Pages: 80-86(2016)
- 作者机构：
  
  中国电力科学研究院,北京市,100192
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2016
- 稿件说明：
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YAO Liangzhong. [J]. Automation of electric power systems, 2016, 40(11): 80-86.
DOI：

YAO Liangzhong. [J]. Automation of electric power systems, 2016, 40(11): 80-86. DOI：

摘要

结合中国陆上和海上新能源地域分布的特点

给出了一种适用于中国未来直流电网发展趋势的含DC-DC变换器的多电压等级直流电网拓扑结构

并对该拓扑结构的特点和优势进行了分析

提出了相应的系统启动、快速潮流分配、直流故障隔离和应对换流站退出运行的控制策略。通过PSCAD/EMTDC仿真软件建立了该直流电网的仿真模型

并对所研究的运行工况进行了仿真分析。仿真结果验证了所提出的控制策略可确保直流电网灵活可靠运行。

Abstract

This paper presents a topology of a DC grid with multi-voltage levels which is suitable for the system with large scale offshore and onshore distributed renewable generations in China. The advantages of the topology are analyzed. Control strategies for starting-up

fast power flow distribution

DC fault isolating and converter station tripping off are proposed. The simulation model of the DC grid is built using the PSCAD/EMTDC software tool. Simulation results validate the effectiveness of the proposed control strategies for flexible and reliable operation of the presented DC grid. This work is supported by National Natural Science Foundation of China (No. 51261130484) and State Grid Corporation of China (No. 2013-304).

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可隔离直流故障的直流电网用DC/DC变换器拓扑

直流电网潮流控制方法述评

柔性直流输电网用新型高压直流断路器设计方案

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