Comparative Study of Torque Analysis for Synchronous Permanent Magnet Coupling With Parallel and Halbach Magnetized Magnets Based on Analytical Field Calculations

Kang, Han-Bit; Choi, Jang-Young; Cho, Han-Wook; Kim, Jaehyuck

doi:10.1109/tmag.2014.2329010

Cited by 15 publications

(8 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For an average torque improvement, various topologies related to geometry modification such as having hollow iron rotor, slimmer tooth body width and back iron width for a high number of coil turns, smaller and asymmetric air gap [10][11][12]. On rotor design side, pole embrace, shape of magnet, magnet skew and type of magnetization i.e parallel and hallbach were among popular steps to enhance output average torque [13][14][15]. By having proper magnet geometry and parallel magnetization, a decentred magnet rotor results a relative high of flux density, average torque and efficiency [16].…”

Section: Introductionmentioning

confidence: 99%

Torque improvement of PM motor with semi-cycle stator design using 2D-finite element analysis

Kwang¹,

Jamil²,

Jidin³

2019

IJECE

View full text Add to dashboard Cite

This paper presents sizing approaches to improve output torque performance in PM motor when partial stator body is removed. As the output torque performance is directly proportional to the electric loading, Q, modification on stator geometry affects the output torque performance and special procedures have to be taken to restore the desired output torque capability. Influences of split ratio, tooth body width, airgap and magnet thickness of magnet in PM motor with asymmetry stator design are carried out and the performance verification are referred to the back-emf, average output torque, torque ripple as well as cogging torque. From the investigation using 2D-Finite Element Analysis, optimum size of tooth body width and optimum number of coil turns result better output torque while other sizing approaches result no significant change as quick saturation took place.

show abstract

Section: Introductionmentioning

confidence: 99%

Torque improvement of PM motor with semi-cycle stator design using 2D-finite element analysis

Kwang¹,

Jamil²,

Jidin³

2019

IJECE

View full text Add to dashboard Cite

show abstract

“…H. B. Kang and J. Y. Choi et al [14] presented a comparative study of torque analysis for synchronous PMCs with parallel-and conventional Halbach-magnetized magnets, using analytical field calculations based on the magnetic vector potential and Maxwell stress tensor. In this paper, a two-segment Halbach array is adopted in the radial PMC.…”

Section: Introductionmentioning

confidence: 99%

Analysis and Structure Optimization of Radial Halbach Permanent Magnet Couplings for Deep Sea Robots

Cheng

Pan

2018

Mathematical Problems in Engineering

View full text Add to dashboard Cite

Permanent magnet couplings (PMCs) can convert the dynamic seal of transmission shaft into a static seal, which will significantly improve the transmission efficiency and reliability. Therefore, the radial Halbach PMC in this paper is suitable as the transmission mechanism of deep sea robots. A two-segment Halbach array is adopted in the radial PMC, and the segment arc coefficient can be adjustable. This paper presents the general analytical solutions of the distinctive Halbach PMCs based on scalar magnetic potential and Maxwell stress tensor. The analytical solutions of magnetic field are in good agreement with 2-D finite element analysis (FEA) results. In addition, an initial prototype of the radial Halbach PMC has been fabricated, and the analytical solutions of magnetic torque are compared with 3-D FEA and experiment results. This paper also establishes an optimization procedure for PMCs based on the combination of 3-D FEA, Back Propagation Neural Network (BPNN), and Genetic Algorithm (GA). 3-D FEA is performed to calculate the pull-out torque of the samples from Latin hypercube sampling, then BPNN is used to describe the relationship between the optimization variables and pull-out torque. Finally, GA is applied to solve the optimization problem, and the optimized scheme is proved to be more reasonable with the FEA method.

show abstract

“…In order to compute the PMCs torque the field from each individual magnet is typically first determined and then the magnet's fields are summed up and used to compute the torque. Examples of authors using this approach are given in [2][3][4][5]. Frédéric [5] for instance, then used such a technique to study the performance of different magnetic couplings that utilize rectangular magnets.…”

Section: Introductionmentioning

confidence: 99%

Ideal Radial Permanent Magnet Coupling Torque Density Analysis

Bird

Acharya

2017

IEEE Trans. Magn.

View full text Add to dashboard Cite

show abstract

Comparative Study of Torque Analysis for Synchronous Permanent Magnet Coupling With Parallel and Halbach Magnetized Magnets Based on Analytical Field Calculations

Cited by 15 publications

References 14 publications

Torque improvement of PM motor with semi-cycle stator design using 2D-finite element analysis

Torque improvement of PM motor with semi-cycle stator design using 2D-finite element analysis

Analysis and Structure Optimization of Radial Halbach Permanent Magnet Couplings for Deep Sea Robots

Ideal Radial Permanent Magnet Coupling Torque Density Analysis

Contact Info

Product

Resources

About