Ground automatic neutral section passing device

Abstract

A ground automatic neutral section passing device comprises a locomotive position detection module which is used for acquiring locomotive position information through pressure detection and generating a corresponding locomotive position signal; a control module is connected with the locomotive position detection module and is used for generating a corresponding switch control signal according to the locomotive position signal; a neutral section passing execution module, wherein a control port of the neutral section passing execution module is connected with the control module, a plurality of power ports of the neutral section passing execution module are connected with the first power supply area, the neutral area and the second power supply area respectively, and the neutral section passing execution module is used for switching electric connection between the neutral area and the first power supply area and between the neutral area and the second power supply area according to the switch control signals. The device directly judges the position of the locomotive through the weight, so that the device is not easy to be interfered by adjacent vehicles, uplink and downlink vehicles are not easy to interfere with each other, and the reliability is higher. Meanwhile, the detection mode of the device is more direct and accurate compared with the previous detection mode, and the later maintenance workload is small.

Description

Technical field [0001] The present invention relates to the field of rail transit, and in particular, to a ground automatic excessive phase device. Background technique [0002] The existing electrified railway contact network is a single-phase work frequency AC power supply mode. In order to reduce the voltage imbalance of the power system three-phase power supply network and improve the utilization rate of the grid, the electrified railway needs to be segmented by segmentation, that is, the voltage phase is different. The two power supply arms are embedded in a non-electric neutral zone, each of which is smooth transition between the anchor segment and the neutral zone. In the electrified rail operation, in order to reduce the adverse effects of the contact mesh electrochetization region, most of which automatically excessively phase or the ground is automatically excessive. [0003] When the automatic excessive phase device of the ground can reach the purpose of supplying the ...

AI Technical Summary

Problems solved by technology

Among them, the axle counting detection method is the most widely used and the most mature, but the axle counting detection method cannot distinguish between locomotives and freight cars; the track circuit detection method needs to consider the multi-grouping method of the line, which will eventually lead to a longer length of the neutral zone (for example, greater than 1000m). Facilitate troubleshooting and maintenance; Infrared beam detection method and catenary detection method can theoretically directly detect the locomotive (pantograph) position, but these two methods are easily restricted by the weather environment, driver operation, line operation conditions, etc., engineering Unable to meet reliability requirements

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