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Train power supply system of locomotives

A power supply system and train technology, applied in the field of rail transit, can solve problems such as road wind events, train supply failure, load sudden cut, etc., and achieve the effects of reducing ripple coefficient, improving power factor, and improving accuracy

Inactive Publication Date: 2016-09-21
ZHUZHOU CSR TIMES ELECTRIC CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] (1) According to the test column, the power factor of the actual operation can only reach about 0.82, and relatively large harmonics are generated on the locomotive trunk line. The harmonic component index of the AC current is above 10%. The substation is equipped with a power compensation device, which greatly increases the cost
[0006] (2) Once the main circuit failure of the original train power supply device (such as contactor failure, fast melting failure, fan failure, etc.) occurs, the train supply will not work, affecting the normal power supply of passenger trains, and may cause "road failure" in severe cases. wind event"
[0007] (3) Due to the inherent characteristics of the thyristor, the adjustment cycle of the train power supply control device is 10ms at the fastest, which is relatively slow, and the load is suddenly cut. Due to the slow adjustment, there may occasionally be faults such as overvoltage protection

Method used

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  • Train power supply system of locomotives
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  • Train power supply system of locomotives

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Embodiment Construction

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] Such as figure 2 As shown, the train power supply system of the locomotive of the present invention includes

[0028] Train transformer, secondary side column for winding to induce AC, AC340V in this example;

[0029] The four-quadrant rectification device converts the AC voltage of the secondary winding of the train transformer into a DC voltage for the train; in specific applications, it converts AC340V to DC600V;

[0030] The inverter device is located on the train and is used to invert the DC voltage to AC voltage for use by loads such as air conditioners and water heaters on the train. In specific applications, it is to convert DC600V to AC340V;

[0031] The control circuit is used to control the functional operation of the above components.

[0032] In specific applications, there are two sets of four-quadrant rectif...

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Abstract

The invention discloses a train power supply system of locomotives. The train power supply system comprises a train transformer, a four-quadrant rectifying device and an inverter, wherein a secondary side column supply winding inducts alternating voltage; the four-quadrant rectifying device converts alternating voltage of the secondary side column supply winding of the train transformer into direct voltage for use of a train; and the inverter is used for inverting the direct voltage into alternating voltage for use of load on the train. The train power supply system has the advantages of being simple and compact in structure, low in cost, capable of reducing harmonic waves and improving the power factor and the like.

Description

technical field [0001] The invention mainly relates to the field of rail transportation, in particular to a train power supply system suitable for locomotives. Background technique [0002] The semi-controlled bridge rectification and voltage regulation technology of the train power supply device is mainly represented by AC and DC electric locomotives such as HXD3C, HXD1D, and HXD3D. Currently, more than 1,000 locomotives are running online. The train power supply devices of AC / DC electric locomotives are similar in principle, and they are all controlled by a centralized power supply control system and an independent power supply circuit. The difference between various power supply devices lies in the structure, rectification device and interface. [0003] Taking the TPZ30 train power supply control device currently used by the HXD3C electric locomotive as an example, describe the technical scheme of the train power supply device for the phase-controlled rectification of th...

Claims

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Application Information

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IPC IPC(8): B60L9/00B60L1/00B61C17/00H02M7/217
CPCB60L1/00B60L9/00B61C17/00H02M7/217Y02T10/72
Inventor 林波忻力高首聪李小平郭建蔡杰刘灿宾川谢佳彬
Owner ZHUZHOU CSR TIMES ELECTRIC CO LTD
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