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Parameters and performance calculation of induction motor by nonlinear circuit-coupled finite element analysis

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3 Author(s)
Tong Yang ; Coll. of Electr. & Electron. Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China ; Libing Zhou ; Langru Li

This paper presents a 2-D nonlinear time-harmonic finite element model of induction motor for use in the accurate dynamic simulation. In the proposed model, it is not necessary to rotate the rotor, the resistivity of the rotor material is modified in terms of the specified load condition. The nonlinear properties are represented by using the effective magnetization curve. The field-coupled circuit elements are introduced to account for the 3D end effects including both the stator end-turn reactance and rotor end-ring impedance. The electromagnetic finite element analysis based on two pole region is carried out to determine the complete slip-dependent parameters of the equivalent circuit and hence the motor performance. The simulation is implemented on a 3-phase, 22 kW, delta-connection prototype by using the software package ANSYS. The parameters and performance at rated condition, such as torque, current, power factor etc., are calculated and compared with the designed values and measured results to validate the modeling.

Published in:

Power Electronics and Drive Systems, 2009. PEDS 2009. International Conference on

Date of Conference:

2-5 Nov. 2009