Research and implementation of mine high voltage switch permanent magnetic actuator intelligent control technology

In view of the traditional mine high voltage switch actuator (electromagnetic and electric spring) having poor movement reliability and slow response speed, it is difficult to achieve precise control of mechanical movement. Considering the requirement of high voltage vacuum interrupter opening and closing quickly, bi-stable permanent magnetic actuator in which adding adjusting coil is used in the paper to meet the mine operating condition´s requirement. DSPTMS320LF2407 is used to design intelligent control unit mainly composed of detection, control, protection, CAN communication function and so on. It makes use of RBF neural network to predict the opening and closing time of moving contact to achieve synchronous closing of high voltage switch, and has greatly improved the quality of coal mine power supply and protected the coal mine safety in production.