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Flexible ground automatic neutral-section passing system of electrified railway

An automatic over-phase, electrified railway technology, applied in power lines, transportation and packaging, vehicle parts, etc., can solve the problems of device capacity limitation, matching trouble, low service life, etc., to achieve large output capacity, good compensation effect, adaptability powerful effect

Active Publication Date: 2016-12-14
ZHUZHOU NAT ENG RES CENT OF CONVERTERS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Main disadvantages: low service life; still unable to precisely control the opening and closing phases; need to adjust locomotive protection parameters, poor locomotive adaptability
Main disadvantages: Multiple transformers and high-power converters are required. Due to the limitation of device capacity, it is difficult to achieve full capacity. The locomotive still needs to decelerate and downgrade, and matching is troublesome; large loss and low efficiency
Main disadvantage: still need to change locomotive protection parameters, limited locomotive adaptability

Method used

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  • Flexible ground automatic neutral-section passing system of electrified railway
  • Flexible ground automatic neutral-section passing system of electrified railway
  • Flexible ground automatic neutral-section passing system of electrified railway

Examples

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Embodiment 1

[0030] The ground flexible automatic phase separation system for electrified railways of this embodiment includes a train position identification subsystem, an electric energy characteristic monitoring subsystem, and a power adjustment subsystem; the train position identification subsystem is used to identify the position of the train on the railway line, and The location is provided to the power regulation subsystem; the electric energy characteristic monitoring subsystem is used to monitor the electric energy characteristics of each power supply section of the railway power supply network and provide the electric energy characteristics to the power regulation subsystem; the power regulation subsystem includes a power regulation unit and a power regulation unit It includes a first power adjustment arm and a second power adjustment arm. The first power adjustment arm is connected to the first power supply area of ​​the power supply network, and the second power adjustment arm is ...

Embodiment 2

[0037] This embodiment of the electrified railway ground flexible automatic phase passing system is basically the same as the first embodiment, the difference is that a branch circuit is also provided on the second power adjustment arm, such as Figure 4 As shown, the branch circuit is connected to the contact network of the next power supply area (the right power supply area) of the power supply network through the third circuit breaker QF23. The isolating switch QS2 is also connected in series on the branch circuit. In this embodiment, the isolating switch is a double-head isolating switch, which can simultaneously control the two lines of the second power adjustment arm and the neutral zone and the right power supply zone to be turned on or disconnect.

[0038] In this embodiment, when the electric locomotive requires excessive phase splitting, the third circuit breaker QF23 is opened, and the second circuit breaker QF21 is closed. At this time, the circuit structure of the sys...

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Abstract

The invention discloses a flexible ground automatic neutral-section passing system of an electrified railway. The flexible ground automatic neutral-section passing system of the electrified railway comprises a train position recognition subsystem, an electric energy characteristic monitoring subsystem and a power regulation subsystem. The train position recognition subsystem is used for recognizing the position of a train on a railway line and providing the position for the power regulating subsystem. The electric energy characteristic monitoring subsystem is used for monitoring electric energy characteristics of all power supply sections of a railway power supply network, and providing the power characteristics for the power regulation subsystem. The power regulation subsystem comprises power regulating units. Each power regulating unit comprises a first power regulation arm and a second power regulation arm, wherein the first power regulation arm is connected with the first power supply section of the power supply network, and the second power regulation arm is connected with a neural section adjacent to the first power supply section. The flexible ground automatic neutral-section passing system of the electrified railway has the advantages that an electric locomotive can pass the neutral section safely and stably without reducing the load in an electrified mode, locomotive protection parameters do not need to be modified, and the adaptive capacity is high.

Description

Technical field [0001] The invention relates to the technical field of power supply for electrified railways, in particular to a flexible automatic phase passing system on the ground of electrified railways. Background technique [0002] Due to the particularity of single-phase power supply for electrified railways, there must be a neutral zone between the two power supply arms for electrical isolation between the power supply arms. At present, my country mainly uses the vehicle-mounted automatic phase-passing method to cut off the power to pass through the no-power zone, so it is bound to cause the loss of train traction and speed loss, especially in some high-slope sections, the impact is particularly serious. At the same time, compared with other countries, my country's high-speed railway has the characteristics of large scale and long distance. Long-distance high-speed trains have many excessive phase points. The existing vehicle-mounted excessive phase separation scheme has...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60M3/04
CPCB60M3/04
Inventor 邱文俊周方圆罗仁俊胡家喜吕顺凯王婷龙礼兰王才孝涂绍平胡前朱建波王智成文韬龚芬吴明水
Owner ZHUZHOU NAT ENG RES CENT OF CONVERTERS
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