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Method and system for early warning and control of suspension electromagnet current for medium and low speed maglev trains

A suspension electromagnet and vehicle control system technology, applied in vehicle components, electric traction, electric vehicles, etc., can solve the problem of less fault diagnosis of suspension electromagnets, and achieve the goal of eliminating the risk of burning, reducing cracking, and reducing maintenance costs Effect

Active Publication Date: 2020-07-31
ZHUZHOU ELECTRIC LOCOMOTIVE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are many domestic researches on the fault diagnosis of the suspension controller itself, but less on the fault diagnosis of the suspension electromagnet

Method used

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  • Method and system for early warning and control of suspension electromagnet current for medium and low speed maglev trains

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Experimental program
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Embodiment Construction

[0014] Include the following steps:

[0015] 1) When the vehicle is floating, judge whether the vehicle speed V is 0, if so, go to step 2); otherwise, when the current a output by the suspension controller to the suspension electromagnet exceeds the limit a1, and the duration T≥T3, the suspension control The output to the suspension electromagnet is cut off by the device, and the car is forced to drop off;

[0016] 2) The current a output by the suspension controller to the suspension electromagnet lasts for a certain period of time T, T1≤T

[0017] Such as figure 1 As shown, when the vehicle is in the floating state, when it is stationary, the suspension controller outputs the current a to the suspension electromagnet for a ...

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Abstract

The invention discloses a medium-low speed maglev train levitation electromagnet current pre-warning control method. In a vehicle floating state, the state of a levitation electromagnet is judged according to a current output to the levitation electromagnet by a levitation controller, a lasting time and a vehicle speed to realize levitation electromagnet current pre-warning control. According to the medium-low speed maglev train levitation electromagnet current pre-warning control method, by using a levitation electromagnet current pre-warning control strategy, an electromagnet burning risk iseliminated, problems such as cracking, overheating and gumming are reduced, and the vehicle maintenance cost is reduced.

Description

technical field [0001] The invention relates to the current control of a levitation electromagnet of a maglev train, in particular to a current early warning control method and system for a levitation electromagnet of a medium-low speed maglev train. Background technique [0002] With the advancement of my country's urbanization strategy, problems such as urban traffic, energy crisis, and environmental pollution need to be resolved urgently. Medium and low-speed maglev transportation has the advantages of strong climbing ability, small turning radius, low vibration and noise, safety and comfort, and low construction and maintenance costs, and will play an important role in urban rail transportation. The suspension control system includes sensors, suspension controllers, suspension electromagnets and other parts. The suspension controller receives signals such as gap, acceleration and current from the sensor, and generates control signals according to the control algorithm to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L13/04
Inventor 李林曹芬张文会佟来生李晓春罗华军邓江明
Owner ZHUZHOU ELECTRIC LOCOMOTIVE CO LTD
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