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Compatibility technology for locomotive passing through neutral zone with electricity

A technology of separate phase zones and locomotives, applied in power lines, vehicle components, transportation and packaging, etc., can solve the problem that the locomotive cannot be charged through the phase zone zones.

Inactive Publication Date: 2018-03-13
CRRC DALIAN CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0006] The above three methods of over-phase division are completed by human operation and additional vehicle-mounted equipment operation. In terms of phase separation, all of them are through breaking the main circuit breaker of the locomotive, and it is impossible to realize that the locomotive is electrified and passes through the phase separation area.

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  • Compatibility technology for locomotive passing through neutral zone with electricity
  • Compatibility technology for locomotive passing through neutral zone with electricity

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Embodiment Construction

[0018] HXD3 locomotive controls traction converter (CI) and auxiliary converter (APU) through its own TCMS system (locomotive microcomputer control system), and the technical requirements of its own equipment meet the requirements of ground equipment. details as follows:

[0019] Under locomotive traction working condition: when the locomotive passes through the phase-splitting area in traction mode, the high-voltage voltage transformer TV1 in the primary side circuit of the locomotive transmits the network voltage signal to the TCMS and the converter control unit. When the converter control unit detects the low voltage of the primary side, that is, the primary side voltage is lower than 16KV for 10ms, the converter control unit will implement protection, and the gates of the four-quadrant pulse rectifier and inverter of the traction converter are blocked. The working contactor in the input circuit is disconnected, and at the same time, the primary side undervoltage informatio...

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Abstract

The invention discloses a compatibility technology for a locomotive passing through a neutral zone with electricity. When the locomotive passes through the neutral zone, the locomotive can detect thechange of network pressure in real time, in the case of power lossing, a converter control unit sends a stop protection instruction to a traction converter (CI) and an auxiliary converter (APU), so that a stop work of the converter is completed, and a TCMS system (a locomotive microcomputer control system) controls a main circuit breaker for continuous electricity; and after the locomotive passesthrough the neutral zone, the locomotive detects the fact that the network pressure returns to normal, the converter control unit sends a starting instruction to the converter, so that the converter returns to normal work. According to the compatibility technology for the locomotive passing through the neutral zone with the electricity, it can be ensured that the locomotive with the electricity passes through the neutral zone safely and smoothly, manual operation is not needed, and application reliability the locomotive is improved.

Description

technical field [0001] The invention relates to the technical field of traction control of locomotives, in particular to a compatible technology for electrified locomotives passing through a phase separation zone. Background technique [0002] The electrified railway power supply adopts the single-phase power frequency AC power supply system with a rated voltage of 25kV. In order to ensure the balance of the three-phase power supply load in the power system and improve the power factor of the power supply system, the traction substations of the electrified railway are arranged according to the phase sequence of the power system, and the wiring is rotated, and the catenary adopts the commutation and segmental power supply method. The catenary phase-splitting device is usually set as an insulating anchor joint or a phase-splitting insulator according to the requirements of the driving speed. This part of the structure is a phase-separated area of ​​the power supply network. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60M3/04
CPCB60M3/04
Inventor 于海曹灏江山雷鸣刘颖王玉庭
Owner CRRC DALIAN CO LTD
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