Phase selection switch controller

The utility model relates to the technical field of vacuum switch controllers and discloses a phase selection switch controller. The phase selection switch controller comprises a microprocessor, a power electronic drive module, a capacitor charging module, a permanent magnetic mechanism energy-storage capacitor group and a current/voltage zero-crossing detection module, wherein the microprocessor is connected with the current/voltage zero-crossing detection module and the power electronic drive module, one side of the permanent magnetic mechanism energy-storage capacitor group is connected with the capacitor charging module, and the other side of the permanent magnetic mechanism energy-storage capacitor group is connected with a mechanism coil through the power electronic drive module. According to the utility model, natural zero-crossing points of alternating voltage and current of a power grid are measured and a permanent magnetic mechanism is driven to make each phase of a vacuum circuit breaker switched o