Overvoltage anti-delay protection circuit of aviation high-voltage direct-current generator controller

The invention provides an overvoltage anti-delay protection circuit of an aviation high-voltage direct-current generator controller, which comprises a protection module I and a protection module II which are connected in parallel between a generator direct-current voltage output end and a main contactor, each of the protection module I and the protection module II comprises a voltage detection circuit, a voltage discrimination circuit, an anti-delay circuit, an overvoltage action point judgment circuit and an overvoltage signal output circuit which are connected in sequence; the input end of the voltage detection circuit is connected with the direct current voltage output end of the generator, and the output end of the overvoltage signal output circuit is connected with the main contactor; when an overvoltage fault occurs at the direct-current voltage output end of the generator, the voltage discriminating circuit is switched on, the overvoltage signal output circuit outputs a fault voltage signal VDC-out, an