The precision inductance estimation of IPMSM for vehicles

The inductance of IPMSM was calculated using a Direct Current Test(DCT) and Current Vector Control Test (CVCT). The CVCT has advantages related to the current phase angle, and does not require separate experiment equipment. However, large error at current phase angles of 0° and 90° is generated. By contrast, DCT can calculate the inductance at 0° and 90° only, but the precision is very high. In this paper, the inductance was calculated through CVCT and DCT and the results were compared and studied. The validity of the approach was verified through a torque performing experiment.

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Changwon National University
Korea (Republic of)

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