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Integrated grounding system for medium-and-low-speed maglev train

A technology for maglev trains and grounding systems, applied in the field of integrated grounding systems, can solve problems affecting the safe operation of trains, interference, etc., and achieve the effect of safe and reliable cost, low cost, and system safety

Active Publication Date: 2014-01-01
NAT UNIV OF DEFENSE TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

Furthermore, because the medium and low-speed maglev trains are driven by linear motors, the body of the vehicle will generate induced electricity when the vehicle is running. The induced electricity will cause serious interference to vehicle electronic equipment such as the vehicle suspension system, signal system, and operation control system, and eventually affect the train. safe operation of

Method used

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  • Integrated grounding system for medium-and-low-speed maglev train
  • Integrated grounding system for medium-and-low-speed maglev train
  • Integrated grounding system for medium-and-low-speed maglev train

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings and specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0031] Such as figure 2 , 9 As shown, the present invention is used for the integrated grounding system of medium and low-speed maglev trains, including: train body 1, contact rail 7 for transmitting power to the car body, DC equipment 13 for providing power to the train body, power supply system grounding protection device 8 , Safety grounding protection device 9, leakage detection device 10. The DC equipment 13 provides DC 750V or 1500V voltage, which is transmitted to the train body 1 by the contact rail 7. The contact rail 7 includes a positive contact rail 71 and a negative contact rail 72, which are insulated from the ground. A current collector 15 is installed between the train body 1 and the contact rail 7 , including a positive current collector 151 ...

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Abstract

The invention discloses an integrated grounding system for a medium-and-low-speed maglev train. The integrated grounding system comprises a power supply system grounding protection device, a safety grounding protection device and an electric leakage detection device, wherein the power supply system grounding protection device is arranged in a transformer substation, and the safety grounding protection device and the electric leakage detection device are mounted on the train. The electric leakage detection device is grounded through the safety grounding protection device. The integrated grounding system further comprises an induced current filter device. The induced current filter device is arranged between the train and a negative-electrode contact rail of a contact rail transmitting power and is used for receiving induced current generated during running of the train and outputting the induced current to the negative-electrode contact rail so as to filter induced current in the train. Induced current generated by a direct-current motor during running of the train can be filtered, and accordingly, interference on electronic equipment such as the maglev train system, the signal system and the running control system from the induced current of the direct-current motor is eliminated. Besides, the integrated grounding system has the advantages of simple structure, low cost, low electromagnetic interference, safety, reliability and the like.

Description

technical field [0001] The invention relates to the field of medium and low speed maglev trains, in particular to an integrated grounding system suitable for medium and low speed maglev trains. Background technique [0002] The comprehensive grounding of the railway is a grounding system that connects the traction power supply and return system, power system, signal system, communication and other electronic information systems, buildings, ballast beds, platforms and other devices that need to be grounded through the ground wire along the railway line. Form a common grounding system and form an equipotential body through equipotential body connection. [0003] Medium and low-speed maglev trains are powered by DC 750V or 1500V. The power supply system adopts three or four rail contact current receiving methods. The contact rail and the track beam are installed overhead through insulators. When the vehicle is running, the traction generated by the linear induction motor drives...

Claims

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Application Information

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IPC IPC(8): B60L13/03B60L3/00
Inventor 陈贵荣李杰刘少克曾欣欣赵志苏
Owner NAT UNIV OF DEFENSE TECH
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