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Locomotive and direct-current power supply system reconnection redundancy device thereof

A DC power supply system, DC power supply technology, applied in the direction of circuit devices, battery circuit devices, collectors, etc., can solve the problems affecting the reliability of reconnection units, the control system cannot work normally, and the locomotive cannot be used normally, so as to reduce the cost of locomotives. failure rate, improve reliability, and ensure normal operation

Inactive Publication Date: 2013-01-09
CRRC DALIAN CO LTD
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Problems solved by technology

When locomotives are reconnected, the DC110V power supply system of each locomotive is independent of each other. When the DC110V power supply device of one locomotive fails, the battery pack of this locomotive is limited by capacity and can only maintain work for a period of time. The control system of the locomotive will not work normally, resulting in the failure of the locomotive to operate normally, thus affecting the reliability of the entire reconnection unit

Method used

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  • Locomotive and direct-current power supply system reconnection redundancy device thereof

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Embodiment Construction

[0013] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0014] see figure 1 , The locomotive DC power system reconnection redundancy device includes a DC110V power supply device 1, a battery pack 2, a control device TCMS, and a reconnection circuit composed of a circuit breaker QA1, a contactor KM1, and diodes VD1 and VD2. The DC power supply device 1 and the battery pack 2 are connected in paral...

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Abstract

The invention relates to a direct-current power supply system reconnection redundancy device of a locomotive. The device comprises a direct-current power source device, a storage battery and a control device TCMS, wherein the control device TCMS is provided with a diode VD2, an anode of the diode VD2 is connected with the direct-current power device and the plus end of the storage battery, and a cathode of the diode VD2 is connected with a load; the control device TCMS is also provided with a diode VD1 connected with a contactor KM1 in parallel, a cathode of the diode VD1 is connected with the cathode of the diode VD2, and an anode of the diode VD1 is connected with a reconnection socket C2; and the opening and closing states of the contactor KM1 are controlled by the control device TCMS. The direct-current power devices of the sections of locomotives are mutually redundant, the normal operation of each section of locomotive is guaranteed, the failure rate of the locomotive is reduced, and the operation reliability of a reconnection locomotive group is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of railway locomotives, in particular to a railway locomotive and a reconnection redundancy device for a DC power supply system thereof. Background technique [0002] The DC power supply system of the locomotive is mainly composed of DC110V power supply unit and battery pack, and its load is mainly the locomotive control system. The battery pack is used as a backup power supply to supply power to the load only when the DC110V power supply unit is not working or fails. When locomotives are reconnected, the DC110V power supply system of each locomotive is independent of each other. When the DC110V power supply device of one locomotive fails, the battery pack of this locomotive is limited by capacity and can only maintain work for a period of time. The control system of the locomotive will not work normally, resulting in the failure of the locomotive to operate normally, thus affecting the reliability of the e...

Claims

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Application Information

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IPC IPC(8): H02J7/34
Inventor 付莹田光兴张彦民于海
Owner CRRC DALIAN CO LTD
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