This article proposes a novel topology optimization approach for permanent magnet synchronous motors (PMSMs) driven by a pulsewidth modulation (PWM) current control system operating in different modes such as maximum torque per ampere (MTPA) and weakening flux controls. The cost function consits of iron and copper losses, which are computed by considering the spatial and time harmonics in the current generated under these conditions. It is demonstrated that the total loss of the optimized model is reduced compared with that of the conventional model in the operating region.
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Hayashi et al. (2022) studied this question.
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