An improved intelligent electric phase splitting device for AC electrified railway

Abstract

The invention discloses an improved AC electrified railway intelligent electric phase splitting device, which consists of two transfer switches with parallel impedance connected at one end, a power supply arm from the first transfer switch to the conversion area of ​​the first anchor section joint, and a neutral Two connecting wires in the zone, the power supply arm from the second transfer switch to the second anchor section joint transfer area and two connecting wires in the neutral zone, voltage and current sensors for detecting the two transfer switches and their connecting wires, etc. . The device accurately judges the real-time position of the train pantograph in the transition area and the neutral area of ​​the anchor section joint based on the voltage and current information of the two transfer switches and the two connecting lines connecting the terminals to the neutral area. The safe and reliable switching of power supply when running in the neutral zone provides technical guarantee. In the device, the two connecting wires from each transfer switch to the power supply arm of the joint transfer area of ​​the anchor section and the neutral area can suppress or even eliminate the electric arc when the train pantograph enters or leaves the neutral area.

Description

An improved intelligent electrical phase separation device for AC electrified railway technical field The present invention relates to electrified railway over-phase technology field, relate in particular to a kind of AC electrified railway ground switch A device or device that converts controlled trains to live out of phase. Background technique [0002] There are three modes of railway power supply: DC power supply, AC single-phase dedicated network power supply, and AC single-phase power frequency commutation power supply. forward Both power supply methods do not have excessive phase problems. For the third power supply method, in order to avoid short circuit between phases, the A catenary with electrical segments at both ends, that is, a neutral segment (or electrical phase separation), is set up at the exit and partition booth. neutral segment It consists of the neutral zone and the anchor segment joints at both ends. The neutral segment isolates two adjacent ...

AI Technical Summary

Problems solved by technology

On the other hand, in the actual operation of the existing live automatic phase separation device, when the train runs to the transition area of ​​the anchor section joint in the neutral zone, a serious arc will be generated, which accelerates the ablation of the catenary and greatly increases the maintenance work of the line quantity

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