With the development of science and technology and the formation of a comprehensive multidisciplinary technology. The emergence of new permanent magnetic actuator and electronic operation of synchronous technology in the field of pressure to achieve a hardware basis. In order to meet the high reliability of the vacuum circuit breaker operation, our country is in-depth study, and gradually promote and electronic control systems match the permanent mechanism. In this article, we have the key technology of digital signal processing theory research motor and motor control. Experimental results show the effectiveness of the method, to better reflect the characteristics of the digital control system for digitizing motion brushless DC motor control engineering applications useful to explore and try.