Open AccessDynamic behavior analysis of backup protection for HVDC transmission line
Author(s) -
Ke Han,
Yu Deng,
Haigen Song
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/768/6/062022
Subject(s) - backup , differential protection , transmission line , line (geometry) , differential (mechanical device) , fault (geology) , reliability engineering , power system protection , electric power transmission , control theory (sociology) , computer science , transmission (telecommunications) , relay , electronic engineering , electrical engineering , engineering , mathematics , voltage , physics , electric power system , biology , transformer , artificial intelligence , paleontology , power (physics) , geometry , control (management) , quantum mechanics , database , aerospace engineering
The backup protection of HVDC transmission line consists of differential undervoltage protection and differential protection. In this paper, based on the actual parameters, the simulation model of differential undervoltage protection and differential protection for DC line is built. The response regularity of each criterion of the two protections under different fault conditions is studied. The basic functions of each criterion are defined, which provides an important basis for the setting calculation of DC line backup protection.