Cogging torque reduction by eccentric structure of teeth in external rotor permanent magnet synchronous motors
Sign Up to like & getrecommendations! Published in 2018 at "IET Electric Power Applications"
DOI: 10.1049/iet-epa.2018.5048
Abstract: Aiming at the problem of torque ripple caused by cogging torque in the external rotor permanent magnet synchronous motor, this study proposes a method for reducing the cogging torque by the eccentric structure of stator… read more here.
Keywords: permanent magnet; magnet synchronous; cogging torque; rotor permanent ... See more keywords
Robust design for reducing cogging torque in surface‐mounted permanent magnet synchronous motor considering tolerances of sub‐components
Sign Up to like & getrecommendations! Published in 2020 at "Iet Electric Power Applications"
DOI: 10.1049/iet-epa.2018.5634
Abstract: This study deals with a robust design for cogging torque reduction considering the production tolerances of motor sub-components, which is related to the dimensions of the permanent magnet and stator core shape. A 14-pole and… read more here.
Keywords: permanent magnet; sub components; cogging torque; motor ... See more keywords
Optimal Design and Analysis of the Novel Low Cogging Torque Axial Flux-Switching Permanent-Magnet Motor
Sign Up to like & getrecommendations! Published in 2018 at "Electric Power Components and Systems"
DOI: 10.1080/15325008.2018.1466216
Abstract: Abstract The axial field flux-switching permanent-magnet machine (AFFSPM) is one of the most efficient machines which is appropriate for high torque and low-speed direct-drive applications. In this paper, the novel axial field flux switching machine… read more here.
Keywords: cogging torque; torque; permanent magnet; flux switching ... See more keywords
Modification of Pole Pitch and Pole Arc in Rotor Magnets for Cogging Torque Reduction in BLDC Motor
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3217233
Abstract: Cogging torque is an unfavorable hindrance in Permanent Magnet Brushless DC (PMBLDC) motor. In medium-low power PMBLDC motors, the surplus oscillations and intolerable noise happen because of the harmonic magnetic forces created by cogging torque.… read more here.
Keywords: cogging torque; pitch pole; pole; pole pitch ... See more keywords
An Improved Configuration for Cogging Torque Reduction in Flux-Reversal Permanent Magnet Machines
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Magnetics"
DOI: 10.1109/cefc.2016.7816063
Abstract: A flux-reversal permanent magnet (FRPM) machine typically suffers from unfavorably large cogging torque due to its special doubly salient structure and high air-gap flux density, resulting in undesired torque and speed ripples, as well as… read more here.
Keywords: gap; configuration; flux reversal; cogging torque ... See more keywords
Analysis and Optimization of Cogging Torque in Yokeless and Segmented Armature Axial-Flux Permanent-Magnet Machine With Soft Magnetic Composite Core
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Magnetics"
DOI: 10.1109/intmag.2018.8508084
Abstract: Yokeless and segmented armature (YASA) axial-flux permanent-magnet machine has high power density and efficiency, which is suitable for electric traction drive, especially for in-wheel or near-wheel direct-drive electric vehicles. This paper investigates and optimizes the… read more here.
Keywords: machine; magnet; cogging torque; segmented armature ... See more keywords
Optimal Step-Skew Methods for Cogging Torque Reduction Accounting for Three-Dimensional Effect of Interior Permanent Magnet Machines
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Energy Conversion"
DOI: 10.1109/tec.2016.2620476
Abstract: This paper proposes optimal step-skew methods for cogging torque reduction in interior permanent magnet (IPM) machines. First, a vector diagram method is employed to analyze the principle of a conventional three-step-skewed rotor, followed by two-dimensional… read more here.
Keywords: step skew; step; optimal step; skew methods ... See more keywords
Rheometer-Based Cogging and Hysteresis Torque and Iron Loss Determination of Sub-Fractional Horsepower Motors
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Transactions on Industry Applications"
DOI: 10.1109/tia.2020.2990876
Abstract: Accurately measuring the cogging torque, hysteresis torque, and iron losses of permanent magnet (PM) motors is a challenging task. This is especially true for sub-fractional horsepower (SFHP) variants used, e.g., in auxiliary drives for automotive… read more here.
Keywords: torque; hysteresis torque; cogging torque; torque hysteresis ... See more keywords
Experimental and Theoretical Research on Cogging Torque of PM Synchronous Motors Considering Manufacturing Tolerances
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Industrial Electronics"
DOI: 10.1109/tie.2017.2758760
Abstract: This paper investigates the cogging torque caused by manufacturing tolerances through analytical, finite element analysis (FEA), and experimental methods. Based on experiments, it is found that the stator and rotor tolerances of PM motor generate… read more here.
Keywords: stator rotor; cogging torque; experimental theoretical; manufacturing tolerances ... See more keywords
Reducing the Cogging Torque Effects in Hybrid Stepper Machines by Means of Resonant Controllers
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Industrial Electronics"
DOI: 10.1109/tie.2018.2844786
Abstract: Permanent magnet machines are not free from the interaction between magnets and the stator and rotor slots, which causes an undesired disturbing torque. Such cogging or detent torque is especially larger with salient pole machines,… read more here.
Keywords: hybrid stepper; stepper machines; torque effects; cogging torque ... See more keywords
Cogging Torque and Unbalanced Magnetic Force Prediction in PM Machines With Axial-Varying Eccentricity by Superposition Method
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Magnetics"
DOI: 10.1109/tmag.2017.2700522
Abstract: This paper proposes a double superposition method to quickly and accurately predict the cogging torque and unbalanced magnetic force (UMF) of permanent magnet machines with axial-varying rotor eccentricities. The original axial-varying eccentric machine is cut… read more here.
Keywords: cogging torque; torque; superposition method; axial varying ... See more keywords