Modeling of Electromagnetic Levitation Melting System with Experimental Validation

Abstract

This paper presents derivation and experimental validation of levitation melting system electro-mechanical model. It was shown that the work load may be perceived as time-varying inductance-resistance combination from the electrical point of view. Expressions linking the values electrical side variables with their mechanical counterparts are developed, forming a unified dynamics representation. Experimental prototype is used as an example throughout the paper, allowing validation and fine tuning of the model subsystems. Analytical and experimental results are shown to be in close agreement, verifying the proposed modeling approach.