Finite Element Observer for Induction Machine in Electric Vehicle Power Train

Mohamed Radhouan Hachicha; Moez Ghariani; Rafik Neji

doi:10.15866/iree.v8i6.2135

Finite Element Observer for Induction Machine in Electric Vehicle Power Train

Mohamed Radhouan Hachicha^(1*), Moez Ghariani⁽²⁾, Rafik Neji⁽³⁾

^(*) Corresponding author

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Abstract

Sensorless control allows lower cost and higher reliability of the induction machine "IM" drives. The performance of an IM drive remains dependent on the rapidity and the accuracy of the submitted parameters values. In electric vehicle "EV" applications, the IM parameters may widely vary owing to the external disturbances and the snippy control variations. Some solutions are already available, such as intelligent controllers, but they still need to improve their reactivity and their accuracy level. Nowadays, the finite element methods provide very accurate information on electrical machines.
In this paper an IM finite element model "IMFEM" is developed using the finite element method magnetics numerical tool "FEMM" to identify the IM parameters. Practice tests are carried out and results are compared to those obtained from simulation. The IMFEM is then integrated in a complete EV power train model using an IM observer. Trials are performed and results are compared with those obtained by the EV power train model using an IM constant parameters controller.

Keywords

Finite Element Method; Induction Motor; Electric Vehicle; Power Train; Parameters Identification

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