Abstract:

Electro-mechanical power controller(EMPC)is a kind of switch with a breaker as mechanical switch and an insulated gate bipolar transistor (IGBT) as solidstate switch. In this paper, a novel structure of EMPC is presented. The EMPC has an absorb circuit combined with resistance, diode and relay. This kind of absorb circuit has some special advantages such as successfully absorbing the voltage peak, isolating the load from power source, and making the EMPC be capable of bearing the load with capacity character.

Key words: EMPC,  , intelligent , solid , state , switch,  , contactor,  , absorb , circuit