Protection control method and device of high-speed circuit breaker, traction control system and train

The invention discloses a protection control method and a protection control device of a high-speed circuit breaker, a traction control system and a train. The traction control system comprises the high-speed circuit breaker and an inverter which are corresponding to each compartment of the train respectively, wherein one end of the high-speed circuit breaker is connected with a power supply; andthe other end of the high-speed circuit breaker is connected with the inverter. The protection control method comprises the following steps: acquiring a checkback signal of the high-speed circuit breaker, and judging whether the detection state of the high-speed circuit breaker is in an off state according to the checkback signal; if the detection state of the high-speed circuit breaker is judgedto be in the off state, acquiring the bus voltage of the inverter, and judging whether the actual state of the high-speed circuit breaker is in the off state according to the bus voltage; and if the actual state of the high-sp