基于突变能量比值的多端柔性直流电网闭锁式纵联保护方案
TM73; 多端直流电网中的限流电抗器集中配置,直流线路之间边界元件的缺失将使区内、区外故障的辨别变得困难.针对上述多端柔性直流电网,提出了一种基于突变能量比值的闭锁式纵联保护方案.以保护安装处的突变能量作为启动判据检测直流电网中的故障,利用故障前、反行波在换流站两侧的突变能量比值差异构造保护动作判据.双端保护判断完成后,仅需进行逻辑交换即可决定是否执行跳闸.在PSCAD/EMTDC平台上验证了所提保护方案的有效性,仿真结果表明该保护方案能够有效辨别区内、区外故障,并拥有较好的耐过渡电阻能力和抗噪声能力....
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Published in | 电力自动化设备 Vol. 40; no. 4; pp. 2 - 16 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | Chinese |
Published |
三峡大学电气与新能源学院,湖北宜昌443002
10.04.2020
华中科技大学强电磁工程与新技术国家重点实验室,湖北武汉430074%三峡大学电气与新能源学院,湖北宜昌,443002%华中科技大学强电磁工程与新技术国家重点实验室,湖北武汉,430074 |
Subjects | |
Online Access | Get full text |
ISSN | 1006-6047 |
DOI | 10.16081/j.epae.202004024 |
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Abstract | TM73; 多端直流电网中的限流电抗器集中配置,直流线路之间边界元件的缺失将使区内、区外故障的辨别变得困难.针对上述多端柔性直流电网,提出了一种基于突变能量比值的闭锁式纵联保护方案.以保护安装处的突变能量作为启动判据检测直流电网中的故障,利用故障前、反行波在换流站两侧的突变能量比值差异构造保护动作判据.双端保护判断完成后,仅需进行逻辑交换即可决定是否执行跳闸.在PSCAD/EMTDC平台上验证了所提保护方案的有效性,仿真结果表明该保护方案能够有效辨别区内、区外故障,并拥有较好的耐过渡电阻能力和抗噪声能力. |
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AbstractList | TM73; 多端直流电网中的限流电抗器集中配置,直流线路之间边界元件的缺失将使区内、区外故障的辨别变得困难.针对上述多端柔性直流电网,提出了一种基于突变能量比值的闭锁式纵联保护方案.以保护安装处的突变能量作为启动判据检测直流电网中的故障,利用故障前、反行波在换流站两侧的突变能量比值差异构造保护动作判据.双端保护判断完成后,仅需进行逻辑交换即可决定是否执行跳闸.在PSCAD/EMTDC平台上验证了所提保护方案的有效性,仿真结果表明该保护方案能够有效辨别区内、区外故障,并拥有较好的耐过渡电阻能力和抗噪声能力. |
Author | 林湘宁 范理想 童宁 刘琦 郑宇超 李正天 |
AuthorAffiliation | 三峡大学电气与新能源学院,湖北宜昌443002;华中科技大学强电磁工程与新技术国家重点实验室,湖北武汉430074%三峡大学电气与新能源学院,湖北宜昌,443002%华中科技大学强电磁工程与新技术国家重点实验室,湖北武汉,430074 |
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Author_FL | LI Zhengtian LIN Xiangning ZHENG Yuchao LIU Qi TONG Ning FAN Lixiang |
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Keywords | 换流站 多端柔性直流电网 纵联保护 突变能量 继电保护 行波传递特性 |
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Title | 基于突变能量比值的多端柔性直流电网闭锁式纵联保护方案 |
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