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- W2534472663 abstract "Cross magnetization (CM) is an inevitable phenomenon in electrical machines. It is more prominent in interior permanent magnet (IPM) brushless dc (BLDC) machines. This is because PMs demagnetize in overloaded and saturated conditions. It leads to cross coupling between the direct and quadrature-axes quantities, and a decrease in the resultant air-gap flux-density distribution under saturated conditions. In this paper, it is shown that CM leads to braking torque even in unsaturated IPM BLDC machines. Furthermore, the effect of CM on flux linkage, electromotive force, and dynamic torque is presented. Its mitigation using suitable selection of slot–pole combination is presented. It is observed that odd slot–pole combinations are least affected, and even slot–pole combinations are severely affected by CM. Furthermore, it is found that the overlap area of rotor pole arc with the stator pole arc influences the severity of CM, more particularly in fractional slot–pole combination machines. To verify these claims, finite-element method is used for modeling and analyzing various slot–pole combinations of a spoke-type IPM BLDC motor. The results obtained from these simulations are validated with a fabricated reference prototype, which support the claims." @default.
- W2534472663 created "2016-10-28" @default.
- W2534472663 creator A5036314411 @default.
- W2534472663 creator A5088649979 @default.
- W2534472663 date "2017-01-01" @default.
- W2534472663 modified "2023-09-24" @default.
- W2534472663 title "Braking Torque Due to Cross Magnetization in Unsaturated IPM BLDC Machines and Its Mitigation" @default.
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- W2534472663 doi "https://doi.org/10.1109/tmag.2016.2618343" @default.
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