Open AccessAnalysis of the Effect of an AC Three-phase Fault on the Commutation Failure of DC Transmission System
Author(s) -
Yun Yang,
Xing Li,
Xiaoxiao Zhao
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/571/1/012004
Subject(s) - commutation , transmission system , inverter , fault (geology) , equivalence (formal languages) , three phase , power transmission , transmission (telecommunications) , grid , computer science , control theory (sociology) , electric power system , engineering , power (physics) , electrical engineering , voltage , mathematics , physics , control (management) , geometry , discrete mathematics , quantum mechanics , artificial intelligence , seismology , geology
In AC/DC interconnected systems, the commutation failure of the DC system caused by the AC-side fault is one of the common faults of the inverter. According to the actual engineering parameters, a detailed model of ±660kV Yindong DC transmission project was built using PSCAD/EMTDC simulation tools, and at the same time, an equivalent model of Shandong power grid on the inverter side was also established using physical equivalence-based equivalent methods. On this basis, a simulation analysis was made on the operation of the Yindong DC system when there was a three-phase symmetrical fault in the AC system, providing a reliable reference for the safe and stable operation of the Yindong DC transmission system and other HVDC transmission projects.