Modeling of Front Magnetic Levitation System and Optimization Design of Controller Considering Eddy Current Effect

Abstract:

By analyzing the principle of eddy current effect and adopting the finite element method to simulate the suspension electromagnetic field， the key factors of eddy current effect on electromagnetic force are obtained， and the front magnetic levitation system model considering eddy current effect is established. According to the dynamic characteristics of magnetic levitation system during train operation， a parameter optimization algorithm without changing the existing nominal controller structure is proposed. The optimized controller has already been implemented and applied to Changsha Maglev Express Line successfully. The actual operation data indicate that the robustness and the anti-interference ability of front magnetic levitation system have been significantly improved.

Key words:medium-low speed maglev train;front magnetic levitation system;eddy current effect;parameter optimization;robustness