Unloading non-stop control method for oxygen production air compressor of passenger train during passing neutral section

Abstract

The invention relates to an unloading non-stop control method for an oxygen production air compressor of a passenger train during passing a neutral section. The method comprises the steps that when a train is about to enter the neutral section, a train system sends out a neutral section forecasting signal, and an emergency power supply supplies power to the oxygen production air compressor through an inverter; meanwhile, a pressure relief electromagnetic valve arranged at an exhaust port of the oxygen production air compressor is opened, and the air compressor runs in a no-load mode; and when the vehicle drives out of the neutral section and a train power supply is detected, the emergency power supply is switched off, the train power supply supplies power to the oxygen generation air compressor through the inverter, meanwhile, the pressure relief electromagnetic valve is switched off, the oxygen generation air compressor stops the no-load running state, and compressed air for oxygen generation starts to be reloaded. According to the unloading non-stop control method, a neutral section early forecasting mode is adopted, the air compressor is matched with the emergency power supply for use, the air compressor is unloaded, so that no-load running of the air compressor in the neutral section is ensured, and the train power supply of an electric locomotive is replaced by the emergency power supply; and the problem that the air compressor is powered off and shut down in the neutral section of an electrified railway is solved.

Description

technical field [0001] The invention relates to a control method for an oxygen-generating air compressor of a railway passenger car without stopping during phase-separated unloading, and belongs to the technical field of an oxygen-generating system for a plateau railway passenger car. Background technique [0002] Since July 1, 2006, the plateau railway passenger cars have been in operation, and the power supply of generator cars has been used so far. The air compressor of the oxygen generation system does not have the problem of power failure in the phase separation area during operation. As long as the generator car has power, the oxygen generation air compressor can run. [0003] With the opening of the plateau electrified railway, the original power supply method of using power generation cars to provide power is no longer applicable. In the operation of electrified railways, the traction substation is used as a power source to supply power to the catenary, and the elec...

AI Technical Summary

Problems solved by technology

[0004] The train frequently passes through the phase separation zone. If there is no battery to provide power in the phase separation zone, the air compressor will frequently stop illegally, causing the head of the air compressor to burn out, and the oxygen production cannot be loaded in time after the shutdown, which will affect the oxygen production performance.