Analysis and reduction of cogging torque in direct‐drive external‐rotor permanent magnet synchronous motor for belt conveyor application

Song, Yongda; Zhang, Zhaoyu; Yu, Siyang; Zhang, Fengge; Zhang, Yuan

doi:10.1049/elp2.12048

Cited by 7 publications

(3 citation statements)

References 37 publications

(58 reference statements)

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“…Song, Y. et al [13] investigated the impact of pole shoes and stator tooth structure variations on cogging torque. The proposed combination of novel tooth and novel pole shoe design is optimal for cogging torque with tangential magnetization.…”

Section: Related Workmentioning

confidence: 99%

Impact of Stator Slot Shape on Cogging Torque of BLDC Motor

Kanagarathinam¹,

Manikandan

Ravivarman³

2023

IJEER

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Brushless DC (BLDC) motors have a wide range of applications in these modern days, such as electric vehicles, industrial robots, washing machines, pumps, and blowers. The brushless DC motors have many advantages when compared to induction motors and conventional DC motors, such as better speed control, noiseless operation, high efficiency, less maintenance, and a long life. Along with these benefits, there is one major disadvantage known as cogging, which causes undesirable effects in the motor such as noises and vibrations. BLDC motors have been widely used in automation and industrial applications due to their attractive features. There are certain parameters to be considered while designing a BLDC motor, such as its dimensions, number of windings turns, type of magnetic materials used, required torque, output current, slot-to-depth ratio, efficiency, temperature rise, etc.

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Section: Related Workmentioning

confidence: 99%

Impact of Stator Slot Shape on Cogging Torque of BLDC Motor

Kanagarathinam¹,

Manikandan

Ravivarman³

2023

IJEER

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“…At the same time, the low torque ripple of SPMSM ensures the stable operation of the motor. Due to its simple structure and easy maintenance, this type of motor is more widely used in the drive field of the material conveying system [3].…”

Section: Introductionmentioning

confidence: 99%

A Novel Sliding Mode Controller Applied to SPMSM of Material Conveying System

Liu

Jin

2023

J. Phys.: Conf. Ser.

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As an important power component of the material conveying system, the motor will inevitably cause the vibration of the mechanical structure when rotating, thus affecting the stable operation of the motor. Most material conveying systems have high requirements for motor vibration level, and usually take vibration performance and electrical performance as the evaluation criteria of the same level. A nonlinear terminal sliding mode controller is proposed to solve the phase delay and vibration problems in the sliding mode control system of surface-mounted permanent magnet synchronous motor (SPMSM) in material transmission system.. The sliding surface is an organic combination of nonlinear sliding mode and fast terminal mode, and its relative stability is verified by Lyapunov function. Through MATLAB simulation and fine comparison analysis with other advanced sliding mode control system methods, it can be seen from the simulation results that the signal of the proposed method can obviously control the noise, and the global root-mean-square error is only 1.9%, so it can be seen that the scheme is feasible..

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“…A modulated pole machine with a high torque density has been introduced by [19]; this study developed a tooth pitching technique to overcome the issue of high cogging torque. Implementing a new combination of stator teeth and pole shoes to reduce cogging torque is suggested in [20]. In [21], a novel method for cogging torque mitigation has been proposed by generating a sinusoidal air gap flux density using Halbach arrays in coaxial magnetic gear (CMG).…”

Section: Introductionmentioning

confidence: 99%

Elimination of Cogging Torque and Torque Ripple in Magnetic Gear Using Slicing Technique

Rashid¹,

Mohammed²

2022

PIER C

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Magnetic gears (MGs) have many advantages over mechanical gears, including high efficiency, no contact, no lubrication, and low noise. Even though MGs are energy-efficient, cogging torque and torque ripple are always challenging, especially in low-speed applications. Generally, the cancellation of cogging torque enhances the performance of the operation of PM machines. This article proposes an approach based on slicing technique through which reduced cogging torque and improved torque density can be achieved in MGs. The two-dimensional finite element method (2D FEM) has been used to analyze the models using Simcenter and MATLAB software packages. The results show that the elimination of cogging torque of the proposed models compared to the base model is 97.53% on the inner rotor, and that of the outer rotor is 42.23%. Also, the torque density is slightly improved by 0.05% on the inner rotor while 0.1% improvement on the outer rotor is obtained.

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Analysis and reduction of cogging torque in direct‐drive external‐rotor permanent magnet synchronous motor for belt conveyor application

Cited by 7 publications

References 37 publications

Impact of Stator Slot Shape on Cogging Torque of BLDC Motor

Impact of Stator Slot Shape on Cogging Torque of BLDC Motor

A Novel Sliding Mode Controller Applied to SPMSM of Material Conveying System

Elimination of Cogging Torque and Torque Ripple in Magnetic Gear Using Slicing Technique

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