Optimal Design of Hybrid Magnet in Maglev System with Both Permanent and Electro Magnets

Abstract

A magnetic levitation system with both permanent magnets and electromagnets has less powerloss than a conventional attractive-type system. In this paper, we propose an analysis procedure of the hybrid magnet in the experimental levitation system. First, we make a two-dimensional analysis of the hybrid magnet. Though the vector potential A method is often adopted to solve magnetic problems, we propose the magnetic field intensity H method. Second, utilizing the sequential quadratic programming method, we attempt to optimize the arrangement of permanent magnets, which have the maximum guidance force. Finally we investigate the responses of our experimental magnet levitation system by simulations. © 1993 IEEE