Ground electrified automatic neutral section passing system and control method thereof

The invention discloses a ground electrified automatic neutral section passing system and a control method thereof, and relates to the technical field of electrified railway traction power supply, the system is provided with a first neutral section and a second neutral section, and a neutral section passing execution unit comprises a first phase-change switch, a second phase-change switch, a third circuit breaker and a fourth circuit breaker; a first phase-change switch and a second phase-change switch are connected with a first power supply arm and a second power supply arm on the two sides of a traction network respectively, and dynamic adjustment of the length of a neutral section is achieved by controlling the opening and closing states of a third circuit breaker and a fourth circuit breaker through a control unit. The position detection unit is used for detecting the position information of the train, and a basis is provided for the control unit to open and close the neutral section passing execution uni