Optimization of Permanent Magnet Shape for Minimum Cogging Torque Using a Genetic Algorithm

Łukaniszyn, M.; Jagieła, Mariusz; Wróbel, Rafał

doi:10.1109/tmag.2004.825185

Cited by 119 publications

(61 citation statements)

References 5 publications

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“…Various methods to reduce the cogging torque have been proposed in recent years. For instance, employing the auxiliary slots [1], [3], [4]- [9], shaping the rotor magnets or stator teeth [10]- [13]. Another effective method for reducing cogging torque is skewing [1], [3], [14]- [16].…”

Section: Introductionmentioning

confidence: 99%

Cogging Torque Mitigation of Modular Permanent Magnet Machines

Ren

Zhu

et al. 2016

IEEE Trans. Magn.

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Section: Introductionmentioning

confidence: 99%

Cogging Torque Mitigation of Modular Permanent Magnet Machines

Ren

Zhu

et al. 2016

IEEE Trans. Magn.

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“…The optimization variables are the dimensions of the magnet and rotor core. We use two optimization approaches: the Kriging model based on Latin hypercube sampling (LHS) and a genetic algorithm (GA) [12][13][14][15]. The optimal results from the optimization algorithm are verified with 3D-finite element analysis (FEA).…”

Section: Introductionmentioning

confidence: 99%

Efficiency Improvement for Concentrated Flux IPM Motors for Washing Machines

Yoon¹,

Kwon²

2014

Journal of Electrical Engineering and Technology

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-Concentrated flux interior permanent magnet (CFIPM) motors have the advantage that their utilization of flux linkage is more efficient than that of general IPM motors and CFIPM motors are suitable for washing machine motors, which demand low-speed, high-torque specifications. However, low efficiency occurs in the low-speed high-torque mode considering the high-speed operation for spin mode. This paper proposes a magnet overhang structure between the rotor core that reduces leakage flux and improves efficiency for a CFIPM in wash mode. Optimization of the 3D design of magnet overhang structures is performed to improve the efficiency with the same quantity of permanent magnets. The validity of the optimal design is experimentally verified through the fabrication of prototypes.

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“…Many methods, such as a fractional number of slots per pole [3], [4], slot skewing [5,6] magnet skewing [7,8] auxiliary slots or teeth [3], magnet segmentation [9], pole-arc optimization [3], magnet displacing and shaping [10], etc. have been proposed to reduce the cogging torque [11].…”

Section: Introductionmentioning

confidence: 99%

A Design on Reduction Cogging Torque of Dual Generator Radial Flux Permanent Magnet Generator for Small Wind Turbine

Lee¹,

Jung²

2013

Journal of Electrical Engineering and Technology

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-In this paper, the design for an electromagnetic structure and reduction cogging torque of a dual generator structured RFPM generator, which is a combination of the inner-and outer-rotor types, has been proposed. We call this a dual generator radial flux permanent magnet generator. To reduce the cogging torque, firstly, stator tooth pairing was designed; secondly, stator displacement was designed and finally, stator tooth pairing and stator displacement were carried out simultaneously. We found the optimal design condition about stator tooth pairing angle combination and stator displacement angle for cogging torque minimization. As a result, a cogging was reduced by 93.3 [%] by this study.

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Optimization of Permanent Magnet Shape for Minimum Cogging Torque Using a Genetic Algorithm

Cited by 119 publications

References 5 publications

Cogging Torque Mitigation of Modular Permanent Magnet Machines

Cogging Torque Mitigation of Modular Permanent Magnet Machines

Efficiency Improvement for Concentrated Flux IPM Motors for Washing Machines

A Design on Reduction Cogging Torque of Dual Generator Radial Flux Permanent Magnet Generator for Small Wind Turbine

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