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access icon free Parameters and performance analysis of a dual stator composite rotor axial flux induction motor by an analytical method

© The Institution of Engineering and Technology
Received 05/12/2017, Accepted 04/05/2018, Revised 11/04/2018, Published 10/05/2018

This study proposes a novel dual stator composite rotor axial flux induction motor (DSCRAFIM) whose solid rotor is coated with copper layers. A novel multi-slice and multi-layer method is developed and applied to analyse the three-dimensional electromagnetic field distribution in DSCRAFIM. In the application of this analytical method, DSCRAFIM is equivalent to a finite set of equal-width and increasing-length double primary composite secondary linear induction motors, whose steel secondary is divided into a finite set of equal-height layers. The surface impedance theory is applied to derive the improved equivalent circuit model (IECM) of DSCRAFIM, which considers the coupling relationship between dual stator windings. The accuracy of this IECM is then verified by both finite-element analysis and experimental test.

Inspec keywords: equivalent circuits; rotors; stators; machine theory; linear induction motors; surface impedance; finite element analysis

Other keywords: three-dimensional electromagnetic field distribution; dual stator composite rotor axial flux induction motor; surface impedance theory; IECM; finite set; analytical method; equal-height layers; multilayer method; equal-width; DSCRAFIM; performance analysis; copper layers; multislice method; experimental test; finite-element analysis; improved equivalent circuit model; dual stator windings; solid rotor; increasing-length double primary composite secondary linear induction motors

Subjects: Linear machines; Finite element analysis; Asynchronous machines

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