Train power supply system and its leakage detection and recovery device, method and train
A leakage detection and power supply system technology, applied in the field of rail transit, can solve problems such as affecting the power supply of trains and the inability of trains to run.
Active Publication Date: 2020-08-07
BYD CO LTD
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Problems solved by technology
Once there is a fault on the train side when the power grid is powered, such as a leakage fault, it will directly affect the power supply of the train, and may also cause the train to fail to run
Method used
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[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0032] The leakage detection and recovery device of the train power supply system, the train power supply system, the train and the leakage detection and recovery method of the train power supply system according to the embodiments of the present invention will be described below with reference to the accompanying drawings.
[0033] It should be noted that when the train needs power supply, the traction substation provides the power grid to the train. Specifically, the traction substation provides the power grid to the train caten...
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The invention discloses a train power supply system, a power leakage detection and recovery device thereof, and a method thereof. The device comprises a plurality of leakage protection components, wherein, each leakage protection component is used for detecting whether a high-voltage leakage of a power network occurs on a train. If so, a first switch component in a corresponding power receiving unit is triggered to open and output a leakage signal. A plurality of controllers for controlling all power receiving units to be disconnected from the power grid when the at least two first switching assemblies are disconnected; Vehicle controller, for obtaining a power receiving unit in which no load leakage occurs by positioning the power receiving unit in which the load leakage occurs, and the power receiving unit without load leakage is controlled to restore power supply to the grid, so that not only the power receiving unit with load leakage can be positioned quickly for directional maintenance, but also the high-voltage power supply of the train can be restored according to the positioning result.
Description
technical field [0001] The invention relates to the technical field of rail transit, in particular to a leakage detection and recovery device for a train power supply system, a train power supply system, a train and a leakage detection and recovery method for a train power supply system. Background technique [0002] With the development of science and technology, trains provide great convenience for people's travel. At present, the train is mainly powered by the grid, and mainly uses the DC trunk line power supply method. Once there is a fault on the train side when the power grid is powered, such as a leakage fault, it will directly affect the power supply of the train, and may also cause the train to fail to run. Contents of the invention [0003] The present invention aims to solve one of the technical problems in the above-mentioned technologies at least to a certain extent. For this reason, the first purpose of the present invention is to propose a leakage detectio...
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IPC IPC(8): B60L3/00B60L50/53
CPCB60L3/00B60L2200/26Y02T10/70
Inventor 郭名扬李道林任林
Owner BYD CO LTD