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Track energy feedback system and its control method

A technology of rail energy and control method, applied in the field of rail power supply, can solve the problems of inability to meet the energy recovery and power supply requirements of the DC traction network, low power supply quality and reliability, etc., so as to improve the power supply quality and power supply reliability, and improve the utilization rate. , to ensure the effect of charging and discharging

Active Publication Date: 2021-12-07
BYD CO LTD
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AI Technical Summary

Problems solved by technology

[0004] The current rail power supply system usually only has one conventional energy storage module for braking energy recovery or auxiliary discharge, and there is no backup energy storage module. Therefore, when the conventional energy storage module fails, it cannot meet the energy recovery of the DC traction network and power supply demand, resulting in low power supply quality and reliability

Method used

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  • Track energy feedback system and its control method
  • Track energy feedback system and its control method
  • Track energy feedback system and its control method

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Embodiment Construction

[0019] 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 only for explaining the present invention and should not be construed as limiting the present invention.

[0020] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element refe...

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Abstract

The present invention proposes a track energy feedback system and its control method. The track energy feedback system includes a monitoring device and a first energy storage module and a second energy storage module respectively connected to the monitoring device. The method includes: the monitoring device acquires the first energy storage The operating status information of the module; according to the operating status information, it is judged whether the first energy storage module fails; if the first energy storage module fails, the second energy storage module is controlled to perform charging or discharging compensation. The invention provides a redundant backup energy storage module to perform charging and discharging compensation through the backup energy storage module when a conventional energy storage module fails, thereby greatly improving the quality and reliability of power supply, and simultaneously improving the utilization rate of the energy storage system.

Description

technical field [0001] The invention relates to the technical field of track power supply, in particular to a track energy feedback system and a control method thereof. Background technique [0002] With the increasing depletion of non-renewable energy sources and the increasingly serious pollution problems, urban rail transit has developed rapidly, and DC traction power supply is generally used. In the traditional rail power supply system, resistors are generally used to consume energy during the braking feedback phase, which will cause a huge waste of energy. [0003] Therefore, from the perspective of energy saving and environmental protection, adding energy storage equipment to the traction power supply system of rail vehicles has become an important matter of concern to all parties, and how to further improve the performance and reliability of rail transit power supply after the application of energy storage equipment is becoming more and more important. [0004] The c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J1/00B60M3/06H02J7/00H02J7/36
CPCB60M3/06H02J1/00H02J7/0013H02J7/0068H02J7/36
Inventor 尹韶文景剑飞孙嘉品
Owner BYD CO LTD
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