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Techniques for Reduction of the Cogging Torque in Claw Pole Machines with SMC Cores
As one of the main parasitic parameters in permanent magnet (PM) synchronous machines (PMSMs), cogging torque is the main component of the torque ripple, which has always been the handicap in the high-performance, low-speed drive systems. Over the last two decades, various methods have been proposed to decrease the cogging torque in both radial-flux and axial-flux PMSMs. Among these methods, stator slot skewing, stator tooth notching, PM skewing, PM shifting, and pole pairing are extensivelydoi:10.3390/en10101541 fatcat:kid4j5khnne6val4pigkb74m44