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Iron loss analysis and calculation of switched reluctance motor

Published:2015-04-08 author:TIAN Jin，ZHU Xue-zhong，ZHOU Xiang Browse: 3025 Check PDF documents

Iron loss analysis and calculation of switched reluctance motor

TIAN Jin，ZHU Xue-zhong，ZHOU Xiang

（College of Automation，Nanjing University of Aeronautics & Astronautics，Nanjing 210016，China）

Abstract：Aiming at the magnetic field analysis and iron loss calculation of switched reluctance motor（SRM，which has doubly salient

structure，the method of iron loss calculation of SRM was investigated，and the relationship between the motor iron loss and quadrature

components of core flux density was established. According to the core loss orthogonal equivalent theory，a method，Ellipse method，was

presented to estimate the iron loss of SRM. A three-phase 12/8 SRM was analyzed with Ansoft so that the magnetic flux density and

components Br，Bt could be got and their FFT could be achieved. The accuracy of the Ellipse method was evaluated on the comparison

between the iron loss value using Ellipse method，and the iron loss value using Harmonic method. The results indicate that Ellipse

method to calculate the iron loss is more accurate than the Harmonic method and more advantageous for the design of motor body，cooling

systems and insulation materials of SRM.

Key words：switched reluctance motor（SRM）；finite element analysis（FEA）；harmonic method；ellipse method

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