Force Calculation for Hybrid Magnetic Levitation System

Abstract

This paper presents a calculation model for the electromagnetic force of the hybrid magnetic levitation systems composed of electromagnets and permanent magnets, based on which, theoretical derivation is presented for electromagnetic induction intensity distribution of a single solenoid. According to the molecular circulation hypothesis and Biot-Savart Law, the permanent magnet is equivalent to the corresponding current model, so that the electromagnetic force calculation model is obtained. Moreover, according to the model, the calculation formula of permanent magnet subjected to electromagnetic force is deduced. Finally, a simulation experiment is presented based on Maxwell, which illustrates the effectiveness of the provided calculation model, as well as its better performance in the calculation speed compared with the finite element method.