A method, system and related components for switching the power supply mode of a multi-stream train
A power supply mode and multi-stream technology, which is applied to vehicle components, electrical components, AC network circuits, etc., can solve problems such as low real-time performance, insufficient flexibility, and high requirements for operators
Active Publication Date: 2022-04-19
ZHUZHOU CSR TIMES ELECTRIC CO LTD
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[0003] At present, there are two methods for multi-stream system switching. One is to manually confirm the power supply system by the driver, and then manually select the switch to switch. This solution must rely on the operator, which is not flexible enough, and has high requirements for the operator. There are certain potential safety hazards; the other is to add a power supply system identification device externally, which cooperates with the signs of the boundary area of the power supply area. For example, the switching signal of the power supply system is obtained by image recognition. Signal switching power supply mode, this method is not real-time, and further increases the failure rate of the power supply system detection system, and also generates additional installation space and cost
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[0060] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0061] There are two ways to switch between multi-stream systems. One is to manually confirm the power supply system by the driver, and then manually select the switch to switch. This solution must rely on the operator, and the flexibility is not enough. The other is to add a power supply system identification device externally, which cooperates with the signs of the boundary area of the power supply area. This method has low real-time performance and further...
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The present application discloses a method, system and related components for switching the power supply mode of a multi-flow train. The switching method includes: acquiring a power grid status signal of the catenary through a sensor connected to the catenary in the traction system; determining the power grid according to the power grid status signal Power supply mode; determine whether the traction system is in a switchable environment, if so, switch the traction system to the grid power supply mode; if the grid status signal in the current grid power supply mode meets the grid voltage abnormal condition, determine that the catenary is in the grid voltage abnormal state, according to the preset The protection principle disconnects the main circuit breaker of the traction system, and then performs the action of determining the grid supply mode according to the grid status signal again. The present application determines the power supply mode of the power grid corresponding to the catenary through the sensors provided in the traction system, and performs switching or disconnection operations. The whole process does not require human operation, and does not need to add new hardware equipment, which is a safe and reliable intelligent switching method.
Description
technical field [0001] The invention relates to the field of multi-stream train power supply, in particular to a switching method, system and related components for multi-stream train power supply modes. Background technique [0002] Due to the different power supply systems of rail transit lines in different countries or regions, in order to enable trains to run flexibly in power supply areas of these different power supply systems, most of them will use multi-stream trains to meet different power supply systems by switching the power supply mode of the traction main circuit power supply needs. How to accurately identify different power supply systems and switch to the corresponding main circuit mode safely and reliably is one of the key technologies to be solved for multi-stream trains. [0003] At present, there are two methods for multi-stream system switching. One is to manually confirm the power supply system by the driver, and then manually select the switch to switc...
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IPC IPC(8): B60M3/02H02J3/00
CPCB60M3/02H02J3/007B60L9/14B60M3/00
Inventor 徐绍龙王雨蒋奉兵米志宏徐江辉李敏熊煜宇彭辉袁靖张宾
Owner ZHUZHOU CSR TIMES ELECTRIC CO LTD