magazinelogo

Journal of Electrical Power & Energy Systems

ISSN Print: 2576-0521 Downloads: 19401 Total View: 258323
Frequency: semi-annually ISSN Online: 2576-053X CODEN: JEPEEG
Email: jepes@hillpublisher.com

Volumes & Issues

Current Issue

Article http://dx.doi.org/10.26855/jepes.2023.12.008

Selecting Method for Number of Slots and Poles in Brushless Direct Current Motor

Songhyok Han*, Sangen Kim, Gumsong Jo, Hyok Chol Kim

Department of Electrical Actuator, Kim Chaek University of Technology, Pyongyang, Democratic People's Republic of Korea.

*Corresponding author: Songhyok Han

Published: January 23,2024

Abstract

Cogging torque is produced by the magnetic interaction between the stator core and the permanent magnet attached to the rotor. If we use the fractional slot winding, we can decrease cogging torque. In this paper, we propose a method to select number of poles and number of slots reasonably so as to satisfy the three technical requirements (the number of slots of unit winding per phase must be integer, the three-phase symmetric situation must be satisfied, the number of slots per pole per phase must be larger than 0.25.) and two economical requirements (coil pitch factor must be larger than 0.5, winding factor must be larger than 0.85.) of Brushless DC motor. We also propose a method to select a number of poles and a number of slots so that the goodness coefficient is small and the periodic coefficient is large to decrease cogging torque.

References

[1] Dosiek, L. & Pillay, P. (2007). Cogging Torque Reduction in Permanent Magnet Machines. IEEE Transactions on Industry Applications, 43, 1565-1571.

[2] Ayman M. & EL-Refaie. (2011). Fractional-Slot Concentrated-Windings Synchronous Permanent Magnet Machines: Opportunities and Challenges. IEEE Transactions on Industrial Electronics, 57, 107-121.

[3] Gieras, J. F. (2004). Analytical Approach of Cogging Torque Calculation of PM Brushless Motors. IEEE Transactions on Industry Applications, 40, 1310-1315.

[4] Fei, W. & Luk, P.C.K. (2010). A New Technique of Cogging Torque Suppression in Direct-Drive Permanent Magnet Brushless Machines. IEEE Transactions on Industry Applications, 46, 1332-1340.

[5] Zark, D., Ban, D., & Lipo, T. A. (2008). Analytical Solution for Cogging Torque in Surface Permanent-Magnet Motors Using Conformal Mapping. IEEE Transactions on Magnetics, 44, 52-65.

[6] Wu, L. J., Zhu, Z. Q., Chen, J. T., Xia, Z. P., & Geraint W.J. (2010). Optimal Split Ratio in Fractional-Slot Interior Permanent Magnet Machines with Non-Overlapping Windings. IEEE Transactions on Magnetics, 46, 1235-1242.

[7] Zhou, C.X., Huang, X.Y., Li, Z.K., & Cao, W.P. (2021). Design Consideration of Fractional Slot Concentrated Winding Interior Permanent Magnet Synchronous Motor for EV and HEV Applications. IEEE Access, 9, 64116-64126.

[8] Wang, K.Y. & Lin H.Y. (2020). A Novel 24-Slot/10-Pole Dual Three-Phase Fractional-Slot Overlapped Winding for Low Non-Working Space Harmonics and Stator Modularization. IEEE Access, 8, 85490-85503.

[9] Sun, H.Y. & Wang, K. (2019). Space Harmonics Elimination for Fractional-Slot Windings with Two-Slot Coil Pitch. IEEE Access, 7, 106961-106972.

[10] Wang, W.B. & Cheng M. (2023). Analytical Model of a Fractional Slot Double-Layer-Winding Vernier PM Machine. IET Electric Power Applications, 17, 293-305.

[11] Shangguan, X.F., Zhang, J.L., & Zhang, W.L. (2013). Calculation on the Winding Factor and Armature Reaction MMF of a PMSM with 5-phase Fractional-slot Winding. Journal of Computers, 8, 725-732.

[12] Liu, G.Q. (2012). Investigation on Slot/Pole Number Combinations for PMSM with Concentrated Fractional Slot Winding. Advanced Engineering Forum, 2, 512-518.

[13] Kumar, D. & Ashwin. (2021). New Optimized Fractional Slot Concentrated Winding Design for Torque Ripple Minimization in Permanent Magnet Machine. Advances in Electrical and Computer Engineering, 21, 127-134.

[14] Yusivar, F., Roy H.S., Gunawan, R., & Halim, A. (2014). Cogging Torque Reduction with Pole Slot Combination and Notch. IEEE International Conference on Electrical Engineering and Computer Science, 260-263.

How to cite this paper

Selecting Method for Number of Slots and Poles in Brushless Direct Current Motor

How to cite this paper: Songhyok Han, Sangen Kim, Gumsong Jo, Hyok Chol Kim. (2023) Selecting Method for Number of Slots and Poles in Brushless Direct Current Motor. Journal of Electrical Power & Energy Systems7(2), 106-115.

DOI: https://dx.doi.org/10.26855/jepes.2023.12.008