用于VSC-HVDC系统的模块化直串式直流耗能装置

TM721.1%TM46; 柔性直流输电(VSC-HVDC)因其所具备的长距离输电损耗低而易于实现故障隔离与穿越、独立控制有功与无功等优势,使得其在海上风电并网领域具备极大的应用前景.为了实现海上风电VSC-HVDC系统的故障穿越,在对比分析现有耗能装置方案的基础上,提出一种经济型模块化直串式直流耗能装置拓扑.该拓扑结合了集中式耗能电阻户外散热和分布式模块自取能、软开关控制的优势,解决了拓扑中功率器件异步通断造成的子模块电压持续攀升的可控放电难题.详述了所提拓扑的详细工作状态与控制策略,并通过模块样机实验及等效最小系统实验验证了所提拓扑的可行性与子模块可控放电控制逻辑.通过RTDS实验验证了模...

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Published in电力自动化设备 Vol. 41; no. 7; pp. 117 - 123
Main Authors 谢晔源, 姚宏洋, 李海英, 殷冠贤, 欧阳有鹏, 李钊
Format Journal Article
LanguageChinese
Published 南京南瑞继保电气有限公司,江苏 南京 211102 10.07.2021
Subjects
直流耗能装置
模块化
直串式
VSC-HVDC
故障穿越
Online AccessGet full text
ISSN1006-6047
DOI10.16081/j.epae.202103010

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Abstract TM721.1%TM46; 柔性直流输电(VSC-HVDC)因其所具备的长距离输电损耗低而易于实现故障隔离与穿越、独立控制有功与无功等优势,使得其在海上风电并网领域具备极大的应用前景.为了实现海上风电VSC-HVDC系统的故障穿越,在对比分析现有耗能装置方案的基础上,提出一种经济型模块化直串式直流耗能装置拓扑.该拓扑结合了集中式耗能电阻户外散热和分布式模块自取能、软开关控制的优势,解决了拓扑中功率器件异步通断造成的子模块电压持续攀升的可控放电难题.详述了所提拓扑的详细工作状态与控制策略,并通过模块样机实验及等效最小系统实验验证了所提拓扑的可行性与子模块可控放电控制逻辑.通过RTDS实验验证了模块化直串式直流耗能装置能够实现系统的平滑故障穿越.
AbstractList TM721.1%TM46; 柔性直流输电(VSC-HVDC)因其所具备的长距离输电损耗低而易于实现故障隔离与穿越、独立控制有功与无功等优势,使得其在海上风电并网领域具备极大的应用前景.为了实现海上风电VSC-HVDC系统的故障穿越,在对比分析现有耗能装置方案的基础上,提出一种经济型模块化直串式直流耗能装置拓扑.该拓扑结合了集中式耗能电阻户外散热和分布式模块自取能、软开关控制的优势,解决了拓扑中功率器件异步通断造成的子模块电压持续攀升的可控放电难题.详述了所提拓扑的详细工作状态与控制策略,并通过模块样机实验及等效最小系统实验验证了所提拓扑的可行性与子模块可控放电控制逻辑.通过RTDS实验验证了模块化直串式直流耗能装置能够实现系统的平滑故障穿越.
Author 李钊
李海英
姚宏洋
谢晔源
欧阳有鹏
殷冠贤
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LI Haiying
YIN Guanxian
OUYANG Youpeng
YAO Hongyang
LI Zhao
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