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Eddy current braking power supply system

An eddy current braking and power supply system technology, applied in electric braking systems, electric vehicles, circuits or fluid pipelines, etc., can solve problems such as complex architecture and difficulty in achieving safe braking, improve system reliability, and meet emergency needs. The effect of braking requirements

Pending Publication Date: 2021-10-22
CHINA RAILWAYS CORPORATION +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the eddy current braking power supply circuit is as mentioned above, the current structure is complex and difficult to meet the relevant requirements of safe braking

Method used

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  • Eddy current braking power supply system
  • Eddy current braking power supply system

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Embodiment Construction

[0033] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0034] It should be noted that when an element is referred to as being “disposed on” another element, it may be directly on the other element or there may be another element in between. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or it may be present interveni...

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Abstract

The invention provides an eddy current braking power supply system, which comprises a first power supply loop controllably and electrically connected with an eddy current braking device, and an excitation power supply electrically connected with an intermediate loop of a traction converter; a second power supply loop which is controllably and electrically connected with the eddy current braking device and comprises two standby power supplies in different modes, and the standby power supplies are electrically connected with the traction converter intermediate loop or the traction motor; a power supply control module which is electrically connected with the first power supply loop and the second power supply loop; and the power supply control module selects a power supply loop for supplying power to the eddy current braking device according to the loop states of the first power supply loop and the second power supply loop during emergency braking. The eddy current braking power supply system can improve the reliability of eddy current braking power supply and meet the emergency braking requirement.

Description

technical field [0001] The invention belongs to the technical field of rail vehicle braking, and in particular relates to an eddy current braking power supply system for high-speed trains. Background technique [0002] Braking technology is the key technology to restrict the maximum running speed of trains and ensure the safety of running. According to the relationship that the kinetic energy increases with the increase of the train speed in the power of 2, increasing the running speed puts a heavy burden on the braking system. At present, high-speed trains in the world generally adopt the compound braking mode of "friction braking + dynamic braking". With the increase of train speed, the wheel-rail adhesion coefficient tends to decrease gradually, and it is difficult for adhesive braking to exert sufficient braking force in high-speed sections. Therefore, when the speed of the train is further increased, on the one hand, the kinetic energy will increase significantly, and...

Claims

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Application Information

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IPC IPC(8): B60R16/03B60L7/28
CPCB60R16/03B60L7/28Y02T10/92
Inventor 蔡田王立超陈嘉楠王可殷振环丁福焰姜岩峰朱灵允王立宁高立群
Owner CHINA RAILWAYS CORPORATION
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