Suspension control method for low and middle speed magnetic-levitation train

Abstract

The invention discloses a suspension control method for a low and middle speed magnetic-levitation train. The suspension control method comprises the following steps of: firstly, acquiring suspension control parameters when the train is positioned at different loads by a suspension controller; secondly, acquiring a load pressure value signal which is monitored by a pressure measuring device by the suspension controller; thirdly, changing the suspension control parameters according to load change of a suspension point, which is monitored by the suspension controller according to the pressure measuring device; and fourthly, carrying out real-time suspension control by the suspension controller and turning into the second step. According to the suspension control method disclosed by the invention, the pressure measuring device is used for measuring the pressure value of the suspension point and the suspension controller is used for automatically adjusting the suspension control parameters according to load change conditions, thus the problem that the suspension is instable when the load of a low and middle speed electro-magnet suspension train fluctuates in a wide range and the train passes a transition curve and a circular curve is effectively solved, further the suspension performance is kept unchanged when the electro-magnet suspension train fluctuates in a wide range and the train passes the transition curve and the circular curve and control performance of the suspension controller is improved.

Description

technical field [0001] The invention relates to a levitation control method of a maglev train, in particular to a parameter self-adaptive levitation control method of a medium-low speed maglev train. Background technique [0002] At present, the medium and low-speed maglev train (also known as urban rail maglev train) with a maximum operating speed of about 120km / h is a new type of rail transportation, and its core technology is suspension control technology. The levitation controller of the medium and low-speed maglev train controls the current in the electromagnet coil so that the electromagnetic levitation force is equal to the gravity of the train under a certain levitation gap, so as to realize the stable levitation of the maglev train. [0003] Medium and low-speed maglev trains adopt a multi-bogie structure, such as figure 1 and figure 2 As shown, each car is composed of five bogies 8, and each bogie is composed of two electromagnets 5 on the left and right sides, ...

AI Technical Summary

Problems solved by technology

[0006] The invention provides a levitation control method for medium and low-speed maglev trains. Through the automatic adjustment of the levitation control parameters, it adapts to the change of the system parameters of the maglev train, and solves the problem of the large-scale fluctuation of the load of the medium and low-speed constant conduction electromagnetic levitation maglev train and the train passing through the relaxation curve and the circle. Improve the control performance of the suspension controller by solving the suspension instability problem when the curve occurs

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