The invention provides a virtual energy catcher based inhibition method for magnetic-levitation train-bridge self-induced vibration. The method comprises the steps of estimating the vibration speed of a bridge according to the acceleration of a levitation electro-magnet and a levitation gap; creating a virtual energy catcher using the levitation electro-magnet as an inducing coil of the virtual energy catcher; estimating the acting force of the virtual energy catcher on a bridge; remaining the PD (Proportional-Differential) control for an outer control ring of a levitation control system of a magnetic-levitation train on the premise that the stability of the levitation of the magnetic-levitation train is ensured; overlapping control current which is equivalent to the acting force of the virtual energy catcher on the bridge to current feedback of an inner control ring of the levitation control system, so as to achieve the inhibition for the magnetic-levitation train-bridge self-induced vibration. With the adoption of the method, the stability of a magnetic-levitation train-bridge coupling system can be achieved, thus the self-induced vibration can be avoided, and as a result, the capacity for the magnetic-levitation train passing over the bridge is improved; in addition, an energy catcher and other devices are prevented from being mounted on the bridge, the operation is simple and the cost is low.
Virtual energy catcher based inhibition method for magnetic-levitation train-bridge self-induced vibration
2015-04-01
Patent
Electronic Resource
English
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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