access icon free Calculation methods of equivalent circuit parameters for a dual stator solid rotor axial flux induction motor

© The Institution of Engineering and Technology
Received 14/04/2018, Accepted 09/10/2018, Revised 08/09/2018, Published 10/10/2018

This study proposes a novel dual stator solid rotor axial flux induction motor (DSSRAFIM) for flywheel energy storage system and the computational methods for its equivalent circuit parameters. The quasi-one-dimensional theory and the penetration depth method assume that the electromagnetic field distribution in the solid rotor is uniformly distributed, and they are appropriate for optimal design. The multi-layer method takes the non-linear permeability of the solid rotor into account, and it reduces the computational effort by simplifying the complicated computation into a transfer matrix. The two-dimensional finite element method and the three-dimensional finite element method can provide very accurate results, but they spend a large amount of computational effort. All these methods are improved, so that they are applicable to the DSSRAFIM. Also, these methods are verified by experimental test.

Inspec keywords: electromagnetic fields; matrix algebra; rotors; induction motors; stators; finite element analysis; equivalent circuits; flywheels

Other keywords: DSSRAFIM; transfer matrix; quasione-dimensional theory; flywheel energy storage system; equivalent circuit parameters; electromagnetic field distribution; two-dimensional finite element method; computational methods; novel dual stator solid rotor axial flux induction motor; penetration depth method; three-dimensional finite element method; calculation methods; multilayer method

Subjects: Asynchronous machines; Linear algebra (numerical analysis); Finite element analysis; General circuit analysis and synthesis methods; Other energy storage

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