A Novel Analytical Equivalent Circuit for Single-Sided Linear Induction Motors Considering Secondary Leakage Reactance

Single-sided linear induction motors usually appear in magnetic levitation systems of transportation. Since the beginning such developments, edge effects represent one great challenges to overcome analytical modelling. For almost four decades, order simplify mathematical treatment border effects, most models have not considered secondary leakage flux properly. Although concise and accurate cases, approaches deficiencies slotted secondaries. This paper presents an equivalent circuit that considers reactance for both i.e., entry exit sides. The proposed approach uses analogical RLC which describes behavior magnetizing (exit) demagnetizing (entry) waves, as well adapted correction factors transverse effects. By means 8 pole/120–175 N prototype, measured thrust vertical forces remarkably validate model frequencies equal or higher than 60 Hz. relevance cases can be explained by accounting its influence, specially, rise wave.