An automatic phase separation system and automatic phase separation method for electrified railway divisions

Abstract

An automatic phase separation system and automatic phase separation method for an electrified railway, the system comprising: Catenary 1 and Catenary 2 are respectively connected to the neutral section through Electric Segment 1 and Electric Segment 1; Transformer 1, current transformer 2 and normally open switch 1 are connected in series and then connected in parallel to electric segment 1, current transformer 3 and normally closed switch 2 are connected in series and then connected in parallel to electric segment 2; catenary 1, The two ends are respectively connected to voltage transformers 1 and 2; pantograph detector 1 is installed on one pillar of the current transformer, pantograph detector 2 is installed on the first section of the electric section, and power receiving instrument is installed on the second section of the electric section. Bow detector 3; current transformer 1, 2, 3, pantograph detector 1, 2, 3, voltage transformer 1, 2, normally open switch 1 are all connected to the control unit. The system has a simple structure, less investment, and is easy to implement. It can more completely and reliably realize the automatic phase separation of electrified railway divisions, and has a locking function when the system is abnormal.

Description

technical field [0001] The invention relates to an automatic phase separation system and an automatic phase separation method for electrified railway divisions. Background technique [0002] my country's electrified railway generally adopts single-phase power frequency AC system. In order to make the three-phase load of the power system as balanced as possible, the electrified railway often adopts the scheme of alternating phase sequence and phase-separated partition power supply. The adjacent power supply intervals at the phase-separation partition are divided by air or insulators to form insulating electrical phase separation, referred to as electrical phase separation or phase separation. [0003] In order to prevent electric locomotives from burning out catenary suspension components due to arcing through phase separation, and even causing accidents such as phase-to-phase short circuit, when the train is over-phase-splitting, the driver needs a series of manual operation...

AI Technical Summary

Problems solved by technology

If the electric train does not receive current before the phase separation, but needs to receive current when it reaches the neutral section. At this time, the two switches connected to the neutral section are in the off state, and the current transformer cannot detect the train passing signal. As a result, the train cannot receive current when passing through the entire neutral section, resulting in power supply blind spots, reducing train speed and traffic capacity

At the same time, the application still requires the switching action of two switches when the train in the sub-area automatically passes the phase, and the operation is relatively complicated.

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