Optimization of voltage differential protection for UHVDC transmission line

Optimization of voltage differential protection for UHVDC transmission line

Ground fault tests of ultra-high voltage direct current (UHVDC) transmission line indicate that voltage differential protection of the other pole may be false tripped when the ground fault happens on the line of the pole with a larger number of operating valve groups. In order to solve this problem,...

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Bibliographic Details
Main Authors: YANG Jianming, ZHANG Qingwu, WANG Yangzheng, ZOU Qiang, WANG Yongping
Format: Article
Language:zho
Published: Editorial Department of Electric Power Engineering Technology 2022-05-01
Series:电力工程技术
Subjects:
voltage differential protection
common-mode
differential-mode
transmission velocity
time difference
setting time
Online Access:https://www.epet-info.com/dlgcjs/article/pdf/210315212

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