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| In order to calculate the iron loss of PMLSM, a novel methodology based on FEA, 8 fast Fourier transformation and fuzzy computation was proposed. The mathematical model of linear motor was established, including the flux linkage equation and voltage equation, electromagnetic thrust equation so that PMLSM is well understood. Then 5 steps were taken to resolve the problem of iron loss, and the calculation method for 8 fast Fourier transformation and fuzzy computation was researched in this paper. Simulation and calculation was performed to calculate the iron loss, 8FFT can greatly improve the computing speed and calculate harmonic content firstly. Secondly, fuzzy calculation has greatly improved the intelligence and accuracy of the calculation for iron loss. Finally, the figures of iron loss show that the iron loss rises as the force ranges from 10N to 80N. In addition, the iron loss also rises greatly as the frequency ranges from 5 to 500Hz for different force. |
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| Keywords:iron loss, PMLSM, 8FFT, fuzzy computation, force |
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