Method and device for over-phase-vehicle-network matching on the ground of the electronic switch in the divisional station

Abstract

The invention discloses a method and device for matching the ground over-phase phase of an electronic switch in a district station, and the steps of the method include: S1. According to the minimum maintenance running time for the train to maintain operation after the traction network loses power, the ground automatic over-phase phase device Configure the dead time of the ground automatic phase-splitting device for the minimum dead time; S2. When the train passes the phase in the partition, use the configured dead time to match the train’s passing phase, and if the minimum maintenance running time is greater than the minimum dead time, It can automatically adapt to the over-phase working conditions of the subregion without adjusting the train control method, otherwise it is necessary to adjust the control method of the train traction converter to adapt to the over-phase working conditions of the subregion. The invention can realize the optimal matching between the electronic switch ground automatic phase separation device installed in the divisional station and the train control, and has the advantages of simple realization method, extremely short power loss time of the traction network and train loss of traction force, uninterruptible power supply of the auxiliary system, and the like.

Description

technical field [0001] The invention relates to the technical fields of traction power supply technology and train control technology, in particular to a method and device for matching the ground phase of the electronic switch in a partition station and the vehicle network. Background technique [0002] The traction power supply system of trains such as electric locomotives and EMUs is single-phase power supply, and usually adopts segmental power supply mode, such as figure 1 As shown, the traction transformer in the traction substation converts the three-phase AC power of the power system into two single-phase AC power, and each is responsible for the power supply task of a certain distance section (usually 10-50km). The insulating section is used for electrical isolation, so there is an electric-free zone, which is the electrical phase separation zone of the traction power supply system. Over-phase means that the train passes through the electric phase-separation area, an...

AI Technical Summary

Problems solved by technology

The traditional train control method does not take into account the above-mentioned characteristics of the partitioned phases. When the train partitions the phases, it will still detect whether the traction network is powered off. Once a power failure is detected, the four-quadrant rectifier and inverter will be blocked immediately. And the auxiliary converter, resulting in unnecessary train control, the traction network power loss time, the train loses traction for a long time, and the dead time of the electronic switch ground automatic over-phase device cannot be matched, and the electronic switch ground automatic over-phase phase cannot be fully utilized device performance

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