Computation of Wound Rotor Induction Machines Based on Coupled Finite Elements and Circuit Equation under a First Space Harmonic Approximation

Smail Mezani (1, 2) , Tahar Hamiti (1) , Lamia Belguerras (1) , Thierry Lubin (2) , Christopher Gerada (1)

1 UON - University of Nottingham, UK
2 GREEN - Groupe de Recherche en Electrotechnique et Electronique de Nancy

The paper presents a fast method to compute wound rotor induction machines in steady state. Coupled time-harmonic FE-circuit equation are used under a first space harmonic approximation for the air-gap magnetic field. It is shown that only 4 magnetostatic FE computations are necessary to determine the machine performances for any slip value. The performances comparison to a conventional complex magnetodynamic and time stepping FE analyses show the effectiveness of the proposed approach.

Mots clés: Fourier series; Finite element analysis; Index Terms—Circuit equation; Induction machine; Wound rotor

Domaines: Energie électrique; Electromagnétisme

Smail Mezani, Tahar Hamiti, Lamia Belguerras, Thierry Lubin, Christopher Gerada. Computation of Wound Rotor Induction Machines Based on Coupled Finite Elements and Circuit Equation under a First Space Harmonic Approximation. IEEE Transactions on Magnetics, 2016, 52 (3), pp.8102204. ⟨10.1109/TMAG.2015.2478798⟩. ⟨hal-01228333⟩