PDF(924 KB)
Review of DC Circuit Breaker Technology Development
Junjia HE, Zhao YUAN, Wenting ZHAO, Shuai FANG, Xinlin YU, Yuan PAN
South Power Sys Technol ›› 2015, Vol. 9 ›› Issue (2) : 9-15.
PDF(924 KB)
PDF(924 KB)
Review of DC Circuit Breaker Technology Development
HVDC circuit breakers whth ability to interrupt large DC fault current in a very short period of time and high reliability and economics are urgently needed for flexible DC power transmission and multiterminal DC grid. In this paper, DC circuit breakers including the mechanical, all-solid-state and hybrid ones are reviewed, their advantages and disadvantages, as well as application scopes are analyzed. It is concluded that hybrid constraint circuit breakers and mechanical pre-charged artificial current zero point circuit breakers are more likely to meet the requirements. For the former, it should be in focus to increase the operation speed, optimize the structure, enhance the reliability and economic effectiveness; and for the latter, more attentions should be paid in detailed topoloty, maximum breaking current of the mechanical switch at the artificial current zero point, parameter optimization of tank circuit, and high speed mechanism.
multiterminal DC transmission / HVDC circuit breaker / artificial current zero point / hybrid DC circuit breaker
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