Modeling and Control of Maglev Train Considering Eddy Current Effect

At present, the control design of medium and low speed maglev train in EMS system mostly adopts the static levitation force modeling which ignores the influence of eddy current. The purpose of this paper is to model and analyze the maglev train with a speed of 200km/h. In order to improve the accuracy of the control model, the attenuation effect of eddy current effect on the suspension force should be considered in the modeling. Based on the operation data of Tangshan Maglev Test line, the accuracy of the eddy current effect parameters can be judged and the eddy current effect parameters will participate in the establishment of control model. Aiming at the nonlinearity and instability of suspension system, this paper will try to use the linearization method and PD control algorithm to make the system meet the expectation. This provides a theoretical basis for the acceleration of maglev train in the future.