Train full-automatic pantograph rising and main circuit breaker closing control method and system and rail vehicle

The invention discloses a train full-automatic pantograph rising and main circuit breaker closing control method and system and a rail vehicle. The method comprises the steps that the pressure of a main air cylinder and the pressure of an auxiliary air cylinder are obtained; when the pressure of the main air cylinder is not lower than a set value A, a pantograph is controlled to rise, and a main circuit breaker is closed; when the pressure of the main air cylinder is lower than a set value A and the pressure of the auxiliary air cylinder is not lower than a set value B, a pantograph control circuit and the main circuit breaker control circuit are controlled to act; when the pressure of the main air cylinder is lower than the set value A, and the pressure of the auxiliary air cylinder is larger than a set value C and smaller than the set value B, an auxiliary air pressure machine is controlled to be started, the pantograph is controlled to rise, and when the value B is reached, the auxiliary air pressure machi