Train, train power supply system, power leakage detection and recovery device thereof, and method thereof
A power supply system and leakage detection technology, applied in the field of trains, can solve problems such as power supply system impact, electric shock, fire, and train failure
Active Publication Date: 2019-01-18
BYD CO LTD
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Problems solved by technology
[0002] At present, the train is powered by the grid, if there is a failure on the grid side, the train will not work normally
Moreover, the train is likely to have electric leakage. If the electric leakage protection is not carried out, it will not only have an impact on the power supply system, but may even cause safety accidents such as electric shock and fire.
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[0032] 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.
[0033] The leakage detection and recovery device of the train power supply system, the train power supply system, the train and the leakage detection and positioning method of the train power supply system according to the embodiments of the present invention will be described below in conjunction with the accompanying drawings.
[0034] figure 1 It is a schematic diagram of a leakage detection and recovery device for a train power supply system according to an embodiment of the present invention. Among them, such as figure 1 A...
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The invention discloses a train, a train power supply system, a power leakage detection and recovery device thereof, and a method thereof. The power leakage detection and recovery device comprises a plurality of leakage protection components; a plurality of first insulation detection assemblies; A plurality of controllers for controlling all power receiving units to be disconnected from the powergrid when judging that at least two first switch assemblies are disconnected, controlling each vehicle-mounted battery pack to supply power to a corresponding at least one load, and judging a load leakage condition of the corresponding power receiving unit according to the load insulation resistance; The whole vehicle controller locates the power receiving unit in which the load leakage occurs according to the load leakage condition to obtain the power receiving unit in which the load leakage does not occur, and sends a battery high-voltage power-up command to the power receiving unit in whichthe load leakage does not occur. The device can control the on-board battery pack to supply power to the train and complete the leakage positioning when the high voltage leakage occurs in the power network, and control the power receiving unit which has the load leakage to be disconnected from the battery, so as not to affect the normal operation of the train compartment which has not the load leakage.
Description
technical field [0001] The invention relates to the technical field of trains, in particular to a leakage detection and recovery device of a train power supply system, a train power supply system, a train and a leakage detection and recovery method of the train power supply system. Background technique [0002] Currently, the trains are powered by the grid, and if there is a failure on the grid side, the trains will not work properly. Moreover, electric leakage is likely to occur in the train. If it is not protected against electric leakage, it will not only have an impact on the power supply system, but may even cause safety accidents such as electric shock and fire. 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 object of the present invention is to propose a leakage detection and recovery device for the train power supply sy...
Claims
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IPC IPC(8): B60L3/00B60L50/53H02J1/10
CPCB60L3/00B60L2200/26H02J1/10Y02T10/70
Inventor 郭名扬李道林任林
Owner BYD CO LTD