Cogging Torque Reduction in Permanent Magnet Machines [PDF]
IEEE Transactions on Industry Applications, 2006 This paper examines two methods - magnet shifting and optimizing the magnet pole arc - for reducing cogging torque in permanent magnet machines. The methods were applied to existing machine designs and their performance was calculated using finite-element analysis (FEA).
Dosiek, L., Pillay, Pragasen
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Electrical engineering & Electromechanics, 2022 Introduction. In spite of many advantages of radial flux permanent magnet brushless DC motors it suffers from the distinct disadvantage of high cogging torque. The designer must emphasize to reduce the cogging torque during the design stage.
T. H. Panchal, A. N. Patel, R. M. Patel
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Impact of Selected Methods of Cogging Torque Reduction in Multipolar Permanent-Magnet Machines
Energies, 2020 This paper focuses on the matter of cogging torque reduction by combining various methods of cogging torque minimization. Due to the high costs of prototype construction, cogging torque is minimized during the design phase by using numerical methods ...
Zbigniew Goryca +5 more
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A Calculation Method for the On-Load Cogging Torque of Permanent Magnet Synchronous Machine
IEEE Access, 2019 This paper presents a new method to calculate the cogging torque of the permanent magnet synchronous machine under load condition. Combined with the mathematical expression of the cogging torque, it is found that the cogging torque will be influenced by ...
Weiye Wang +3 more
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Comparison of three analytical methods for the precise calculation of cogging torque and torque ripple in axial flux PM machines [PDF]
, 2016 A comparison between different analytical and finite-element (FE) tools for the computation of cogging torque and torque ripple in axial flux permanent-magnet synchronous machines is made.
Hannon, Bert +3 more
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Analysis of cogging torque in brushless machines having nonuniformly distributed stator slots and stepped rotor magnets [PDF]
, 2005 A simple analytical technique is proposed for synthesizing the cogging torque waveform of a permanent magnet brushless machine from the cogging torque waveform that is associated with a single stator slot.
Howe, D. +3 more
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Comprehensive analysis and evaluation of cogging torque in Axial Flux Permanent Magnet machines [PDF]
, 2015 Evaluation and minimization of cogging torque in Axial Flux Permanent Magnet (AFPM) machines become essential specially in direct drives for low speed applications.
Costa, A.F. +2 more
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Cogging torque minimization in transverse flux machines
2016 IEEE Energy Conversion Congress and Exposition (ECCE), 2016 This paper presents the design considerations in cogging torque minimization in two types of transverse flux machines. The machines have a double stator-single rotor configuration with flux concentrating ferrite magnets. One of the machines has pole windings across each leg of an E-Core stator. Another machine has quasi-U-shaped stator cores and a ring
Tausif Husain +4 more
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Prediction of the electromagnetic torque in synchronous machines through Maxwell stress harmonic filter (HFT) method [PDF]
, 2006 For the calculation of torque in synchronous motors a local method is analysed, based on the Maxwell stress theory and the filtered contributions due to the harmonics of the magnetic vector potential in the motor air-gap.
Popescu, M.
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Cogging Torque Mitigation using the Unequal Rotor Slot Arcs Method based on Magnetic Permeance Distribution for Flux-Switching Machines [PDF]
Journal of Electromagnetic Engineering and SciencePermanent magnet machines, such as flux-switching permanent magnet (FSPM) machines, are characterized by cogging torque, which must be addressed because it leads to torque fluctuations.
Emrah Cetin
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