Method and system for redundant control of locomotive high voltage system
A high-voltage system and redundant control technology, applied to vehicle components, electric vehicles, electrical devices, etc., can solve problems such as locomotive breakage and failure to form high-voltage current paths
Active Publication Date: 2021-02-02
CRRC DALIAN CO LTD
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Problems solved by technology
[0005] Embodiments of the present invention provide a redundant control method and system for a locomotive high-voltage system, which solves the problem in the prior art that each locomotive has one and only one vacuum main circuit breaker. When the vacuum main circuit breaker fails, a high-voltage current path cannot be formed. Problems causing locomotives to break
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[0053] 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 creative efforts fall within the protection scope of the present invention.
[0054] figure 1 The structural diagram of the locomotive high-voltage redundant circuit that the embodiment of the present invention provides, as figure 1 As shown, the locomotive high-voltage redundant circuit provided by the embodiment of the present invention includes: a first pantograph 101, a second pantograph 102, a high-voltage conversion ...
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A locomotive high-voltage system redundancy control method and system provided by an embodiment of the present invention, the method includes: obtaining pantograph fault information and / or vacuum main circuit breaker fault information; according to the pantograph fault information and / or the vacuum Fault information of the main circuit breaker, perform conversion operation on the high-voltage changeover contactor, put the unfaulted pantograph and / or vacuum main circuit breaker into operation, and form a high-voltage current path together with the transformer, avoiding that each locomotive has and only one Vacuum main circuit breaker, when the vacuum main circuit breaker fails, it cannot form a high-voltage current path, causing the problem of locomotive breakdown. If the fault information of the pantograph is obtained, then according to the fault information of the pantograph, the switching operation of the network voltage conversion relay is performed, so that the normal working pantograph, voltage transformer and network voltage conversion relay The contacts on one side of the pantograph are closed to form a current path, and the network voltage information can be obtained normally.
Description
technical field [0001] The invention relates to a control method for a high-voltage system of a locomotive, in particular to a redundant control method and system for a high-voltage system of a locomotive. Background technique [0002] The locomotive high-voltage system is mainly used to connect the high-voltage power of the pantograph-catenary system to the main circuit system of the locomotive to provide power for the locomotive, and at the same time feed back the high-voltage power generated by the main circuit system under the electrical system of the locomotive to the pantograph-catenary system to form a high-voltage power supply. recycling. The locomotive high-voltage system is mainly composed of pantograph, vacuum main circuit breaker, high-voltage isolating switch, high-voltage voltage transformer and other parts. [0003] In the prior art, each locomotive has two pantographs, which are respectively installed at the front end and the rear end of the locomotive roof....
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IPC IPC(8): B60L3/00
CPCB60L3/00B60L5/00
Inventor 李哲刘忠烨周庆强张晓宝贾峰刘忠伟
Owner CRRC DALIAN CO LTD