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A nonlinear control method for the electromagnetic suspension system of the maglev train

Author:
Xu, Junqi   Zhou, Yuan  


Journal:
Journal of Modern Transportation


Issue Date:
2011


Abstract(summary):

To deal with the inherent nonlinearity and open-loop instability of the electromagnetic suspension (EMS) system, a new nonlinear control method is proposed. The simulation results show that, for a PID controller, the overshoot of the system response to an airgap step disturbance is about 3 mm, and the transient time is 6 s; however, for the proposed nonlinear controller, there is no overshoot and transient time within 2 s. The proposed method has a faster response and stronger robustness. With a designed bi-DSP suspension controller, this nonlinear control method was implemented on the Shanghai Urban Maglev Test Line (SUMTL) to validate its effectiveness and feasibility.


Page:
176-180


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