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Rail transit vehicle and energy storage system and control method thereof

A technology of an energy storage system and a control method, which is applied in the field of rail transit to achieve the effect of avoiding the expansion of faults, avoiding the misoperation of human factors, and maintaining continuous operation.

Active Publication Date: 2021-10-01
ZHUZHOU ELECTRIC LOCOMOTIVE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a rail transit vehicle and its energy storage system and control method in view of the deficiencies in the prior art. Under the condition of no fault removal, there is no need to control the contactor pull-in, and there is no need to consider low battery power. and the problem that the contactor cannot be closed due to the line voltage drop

Method used

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  • Rail transit vehicle and energy storage system and control method thereof
  • Rail transit vehicle and energy storage system and control method thereof
  • Rail transit vehicle and energy storage system and control method thereof

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Embodiment Construction

[0033] The energy storage power supply box of the present invention can be composed of n energy storage components, a management system (referred to as CMS) inside the energy storage power supply and the relay KA1 controlled by it. The energy storage elements C1~Cn are connected in series and output to the outside through the positive and negative fuses F1 and F2. The CMS in each energy storage power box is connected to each other through the network bus and communicates with the train control management system (TCMS for short). The CMS diagnoses the status of the energy storage power box and sends it to TCMS. When the CMS finds a serious fault, it sends a "request to cut off the signal" to the TCMS, and does not receive the feedback that the TCMS has cut off the energy storage power supply within the cycle time T, the CMS actively closes the intermediate relay KA1, and sends the contactor off the signal terminal (that is, the first One signal terminal, corresponding to port 4...

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Abstract

The invention discloses a rail transit vehicle and an energy storage system and a control method thereof. The energy storage system comprises N energy storage units connected in parallel. The energy storage power supply comprises an energy storage power supply box, wherein the energy storage power supply box comprises n energy storage elements which are connected in series, two ends of a series branch formed by the n energy storage elements which are connected in series are respectively connected with two main contacts of the contactor, and the two main contacts are both connected with a vehicle load; a coil of the contactor is connected with a train control management system; and N is greater than or equal to 1. By adopting the bistable contactor, under the condition of no fault removal, the contactor does not need to be controlled to be closed, and the problem that the contactor cannot be closed due to low electric quantity of a vehicle control storage battery and line voltage drop does not need to be considered.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a rail transit vehicle, an energy storage system and a control method thereof. Background technique [0002] The energy storage system for trams generally consists of multiple sets of energy storage power supplies with the same configuration connected in parallel to provide power for the vehicle. During operation, multiple groups of energy storage power supplies are used to simultaneously supply power for vehicle traction, air conditioning, lighting, etc., and recover braking energy. At the platform, the vehicle replenishes energy for the energy storage system by actively connecting to the ground charging system. [0003] Because the energy storage power supply can store energy, the total voltage is higher and its internal resistance is smaller in the state of full energy. If the two sets of energy storage power supplies are connected in parallel with a large pressure diff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00B61C17/06B60L3/00B60L1/00
CPCH02J7/0013H02J7/0063H02J7/0029H02J7/0031B61C17/06B60L3/0046B60L1/00Y02T90/16
Inventor 毛业军文午张伟先付鹏李玉梅柯建明付亚娥郎君汪培桢杨洁杨升
Owner ZHUZHOU ELECTRIC LOCOMOTIVE CO
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