Open AccessSimulation and research on over‐voltage suppression for high voltage transmission line
Author(s) -
Yao Qi,
Su Chuan,
Ji Yi
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2018.8730
Subject(s) - tripping , circuit breaker , voltage , transmission line , transient recovery voltage , electrical engineering , electric power transmission , fault (geology) , line (geometry) , closing (real estate) , high voltage , transmission system , engineering , computer science , control theory (sociology) , transmission (telecommunications) , voltage regulation , dropout voltage , control (management) , geometry , mathematics , artificial intelligence , seismology , political science , law , geology
For different types of fault in transmission line, the generation mechanism of tripping and closing over‐voltage is analysed. To built the double power supply system of high‐voltage transmission line simulation model by PSCAD/EMTDC, finally, for the operation of over‐voltage, when the line occurs of different types faults, simulation to study tripping and closing over‐voltage's size and the extent of influence, derived its tripping and closing over‐voltage suppression measures and control strategies. The results showed that: for the circuit breaker tripping and closing over‐voltage, the circuit breaker shunt reactor has better effect on the over‐voltage suppression and improves the reliability of operation and the safety of protection of the system.