杨堤;程浩忠;姚良忠;曾平良;

• 1:电力传输与功率变换控制教育部重点实验室(上海交通大学)
• 2:中国电力科学研究院

摘要(Abstract)：

电流源型(voltage source converter,CSC)直流输电在远距离大功率输电方面技术成熟、经济性好,有利于跨区域电力资源优化配置;电压源型(voltage source converter,VSC)直流输电可控性好,适合大规模风电接入、弱区域互联、孤岛电力传输等场合。多端直流输电技术为多能源中心多负荷中心以及分布式风电等可再生能源的接入奠定了技术支持。CSC和VSC的换流器结构和控制策略不同,基于这2种类型换流器技术的多端直流输电稳态分析、暂态分析、优化控制等成为多端直流输电技术发展的重要研究课题。对国内外多端直流输电的应用背景进行了简介,对直流电网的拓扑结构、多端直流的潮流分析、暂态控制策略、换相失败以及交直流混联系统的电压稳定评估方法等技术进行了分析和总结,并对提高交直流混联系统电压稳定性的优化方法和紧急控制策略进行了分析,最后对多端直流输电技术的发展趋势、关键技术进行了讨论,对提高交直流电网的安全稳定性应对措施提出了建议。

关键词(KeyWords)： 多端直流输电;电压稳定;换相失败;优化控制;紧急控制;同步向量测量装置

Abstract:

Keywords:

基金项目(Foundation): 国家重点基础研究发展计划项目(973项目)(2014CB23903)~~

作者(Author): 杨堤;程浩忠;姚良忠;曾平良;

Email:

DOI: 10.13335/j.1000-3673.pst.2015.08.021

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