Open AccessParameters affecting the arcing time of HVDC circuit breakers using black box arc model
Author(s) -
Gouda Osama E.,
Ibrahim Doaa Khalil,
Soliman Adel
Publication year - 2019
Publication title -
iet generation, transmission and distribution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.92
H-Index - 110
eISSN - 1751-8695
pISSN - 1751-8687
DOI - 10.1049/iet-gtd.2018.6264
Subject(s) - circuit breaker , arc (geometry) , electric arc , black box , distribution board , electrical engineering , computer science , automotive engineering , engineering , mechanical engineering , physics , electrode , artificial intelligence , quantum mechanics
Arc interruption of high voltage direct current (HVDC) circuit breakers (CBs) is one of the main challenging factors for using HVDC grids. To evaluate the arc interrupting capability in HVDC CBs, black box arc models are used to represent the nonlinear arc conductance depending on Cassie and Mayr dynamic arc equations. Extensive simulation studies are carried out to investigate the effect of controlled and uncontrolled parameters on the CB arcing time. A real line represents a part of 500 kV electrical connection systems between Egypt and the Kingdom of Saudi Arabia is simulated to be a faulty load. It is found that the arcing time of the HVDC CB can be reduced by increasing the value of cooling power coefficient ( p ) and decreasing the value of arc time constant ( τ ). It is also deduced that the arcing time is reduced by the increase of the commutation capacitance value ( C ) and decreasing the commutation inductance ( L ) value and vice versa. Moreover, it is concluded that the arcing time is greatly affected by the fault location and the fault arc resistance ( R f ) according to fault conditions.