Alternating-current solid-state power controller and short-circuit protection method thereof

The invention discloses an alternating current solid state power controller and a short circuit protection method thereof. The alternating current solid state power controller comprises an alternating current signal input and output unit, a logic driving control unit, a working current detection unit, an overload current detection unit, a constant value limit peak value short circuit protection unit and a dynamic limit instantaneous short circuit protection unit, according to the method, the identification and protection rate and reliability of the alternating current SSPC on the alternating current short circuit are improved by adopting a mode of combining load line current multi-channel monitoring, dynamic short circuit protection reference real-time triggering and limit short circuit current threshold comparison, and the performance of the alternating current SSPC can be effectively improved. The method is also suitable for alternating-current power distribution protection occasions based on solid-state po