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The Laser Arc Image System (LAIS) provides unprecedented real-time, frame by frame visualization into the micro-second dynamic arc processes consisting of the heat and mass transfer between the electric contacts. These resulting high-speed images and data from the LAIS experiments serve as the empirical analytical tools for understanding the instantaneous arcing behavior, a phenomenon that have only...
The DC circuit breaker technology is one of the key technologies to build multi-terminal DC transmission network. Active DC vacuum circuit breaker (DCVCB) has become the research object. Based on the continuous transition model(CTM) and variable-step 4th-order Runge-Kutta method, sheath development stage during the post-arc dielectric recovery has been simulated and analyzed. Then the influence of...
With the R&D of high voltage direct current (HVDC) transmission, HVDC circuit breaker as the protection equipment has been widely applied in the power system. In this paper, the HVDC vacuum circuit breaker (VCB) based on artificial zero mode has been analyzed, and the genetic algorithm (GA) has been used to optimize the parameters of DC VCB. Moreover, an optimization design method of converting...
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