Ground automatic passing slip phase system for electrified railway based on solid transfer switch

Abstract

The invention provides a ground automatic passing slip phase system for an electrified railway based on a solid transfer switch. The ground automatic passing slip phase system comprises a solid transfer switch, an over-voltage suppression device, a solid transfer switch loop protecting switch and a locomotive position detection device, wherein the locomotive position detection device is arranged on a steel rail; the over-voltage suppression device is arranged between neutral region contact nets and the steel rail; the solid transfer switch and the solid transfer switch loop protecting switch are communicated with neutral regions of contact nets and the contact nets on two adjacent sides; electric split phase neutral regions in the contact nets are kept electrified constantly by powering on the solid transfer switch, so that an electronic locomotive constantly carries phases A and B of voltage when passing through the contact nets. The ground automatic passing slip phase system has the beneficial effects that by transferring the solid switch, the electronic neutral regions of the contact nets constantly carry voltage of 27.5kV in the system, multi-influence of electric split phase to speeds, carrying capacities and the like of a high speed train and a heavy load electronic locomotive is eliminated, furthermore a series of problems caused by electric split phase can be solved, the carrying capacities of locomotives can be increased greatly, and the working intensity of drivers can be relieved.

Description

technical field [0001] The invention relates to a ground automatic phase separation system for an electrified railway based on a solid-state switch. Background technique [0002] At present, the main problems of the locomotive power-off automatic over-phase separation used in electrified railways are: the on-board power-off automatic over-phase separation has the problems of high labor intensity for the driver and frequent actions of the on-board circuit breaker; the mechanical switch type ground switching automatic over-phase separation device is used on ordinary speed railways There is an application to realize that the locomotive circuit breaker does not open the gate and separate the phases, and the AC and straight locomotives can generally adapt. The compatibility technology of the HXD3 locomotive has been solved, and the adaptability of other types of HXD locomotives has yet to be verified. Since the switching time of the mechanical switch type ground switching automat...

AI Technical Summary

Problems solved by technology

[0002] At present, the main problems of the locomotive power-off automatic over-phase separation used in electrified railways are: the on-board power-off automatic over-phase separation has the problems of high labor intensity for the driver and frequent actions of the on-board circuit breaker; the mechanical switch type ground switching automatic over-phase separation device is used on ordinary speed railways There are applications to realize that the locomotive circuit breaker does not open the brakes and phases, and the AC and straight locomotives can generally adapt. The compatible technology of the HXD3 locomotive has been solved, and the adaptability of other types of HXD locomotives has yet to be verified.

In order to solve the unavoidable problems caused by power phase separation on large ramps, and to overcome the defect that the mechanical switch is difficult to meet the slow switching speed of the power supply, it is urgent to develop a power supply device that can quickly switch ground switching locomotives without opening the gate and automatically over-phase. Improve the applicability of automatic phase separation

Images