2022
DOI: 10.1088/1742-6596/2310/1/012063
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Method for weakening cogging torque of built-in permanent magnet synchronous motor by auxiliary slot

Abstract: The cogging torque is an unavoidable property of the permanent magnet motor, which will cause the motor to generate vibration and noise during the movement, and deteriorate the motor performance. In order to decrease the cogging torque of the permanent magnet synchronous motor, by analyzing the cogging torque expression, it is known that opening auxiliary slots in the rotor can decrease the cogging torque. Influence of slot pitch on cogging torque. The simulation results show that when the slot depth is 0.6mm,… Show more

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Cited by 3 publications
(3 citation statements)
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“…M. Aydin et al [15] proposed a new coreless spoke-type sinusoidal rotor segmented permanent-magnet synchronous motor, which achieved higher performance and torque compared to traditional AFPM motors. The reasonable selection of auxiliary slot numbers to weaken the cogging force was verified through theoretical derivation and experimental research by K. Huang et al [16]. L. Xu et al [17] optimized an axial-flux motor by optimizing parameter combinations and using a genetic algorithm to optimize the pole arc coefficient, stator width coefficient, slot displacement, and inclined poles, resulting in a significant reduction in cogging torque and an improvement in the sinusoidality of the no-load back electromotive force waveform.…”
Section: Introductionmentioning
confidence: 80%
“…M. Aydin et al [15] proposed a new coreless spoke-type sinusoidal rotor segmented permanent-magnet synchronous motor, which achieved higher performance and torque compared to traditional AFPM motors. The reasonable selection of auxiliary slot numbers to weaken the cogging force was verified through theoretical derivation and experimental research by K. Huang et al [16]. L. Xu et al [17] optimized an axial-flux motor by optimizing parameter combinations and using a genetic algorithm to optimize the pole arc coefficient, stator width coefficient, slot displacement, and inclined poles, resulting in a significant reduction in cogging torque and an improvement in the sinusoidality of the no-load back electromotive force waveform.…”
Section: Introductionmentioning
confidence: 80%
“…With the advantages of low cost, high torque, high power density, reliability and stability, permanent magnet synchronous motor is widely used in industrial manufacturing, automation, electric vehicle and other industries [1][2]. However, the cogging torque caused by the different permeability may cause the permanent magnet motor to produce torque fluctuation which can affect the motor operation, cause vibration and electromagnetic noise, and affect the motor performance [3].…”
Section: Introductionmentioning
confidence: 99%
“…Replacing these with outer rotor permanent magnet synchronous motors enhances efficiency, conserves space, and enables direct drive [2] . Cogging torque, arising from the interaction between the permanent magnet and slotted conductor, induces system vibration, impacting control accuracy [3] . It is essential to design permanent magnet motors with methods to mitigate this torque [4] .…”
Section: Introductionmentioning
confidence: 99%