volume | PIER Journals

2018-03-27

A Novel Method for Cogging Torque Reduction in Permanent Magnet Brushless DC Motor Using T-Shaped Bifurcation in Stator Teeth

M. Arun Noyal Doss,

Dr. M. Arun Noyal Doss

Department of Electrical and Electronics Engineering

SRM University

India

Homepage

R. Brindha,

Dr. R. Brindha

Department of Electrical and Electronics Engineering

SRM University

India

Homepage

K. Mohanraj,

Dr. K. Mohanraj

Department of Electrical and Electronics Engineering

SRM University

India

Homepage

Shubranshu Sekhar Dash,

Dr. Shubranshu Sekhar Dash

Department of Electrical and Electronics Engineering

SRM University

India

Homepage

K. M. Kavya

Dr. K. M. Kavya

Department of Electrical and Electronics Engineering

SRM University

India

Homepage

Progress In Electromagnetics Research M, Vol. 66, 99-107, 2018

doi:10.2528/PIERM17110902

Abstract

A variety of techniques are available to reduce cogging torque in Permanent Magnet Brushless DC (PMBLDC) motors. In general, all the techniques are meant for effectively reducing the cogging torque. This paper presents a new technique for cogging torque reduction in a radial flux surface mounted PMBLDC motor by applying the proposed T-shaped bifurcation method in the stator teeth of a PMBLDC motor. The Finite Element Analysis (FEA) is carried out for the T-shaped bifurcation method applied to a PMBLDC motor, and analysis is done using Virtual Work (VW) method. The CAD software package MagNet has been used to completely analyze the T-shaped bifurcation based PMBLDC motor. FEA and CAD simulated results are compared for the reduction of cogging torque values. It is found that the cogging torque reductions in the two methods are nearly the same. The cogging torque and the flux density values of the motor calculated using the proposed T-shaped bifurcation method are compared with the corresponding values of the recently introduced Reduced Stator Slot Width method. The proposed T-shaped bifurcation is very effective compared to the existing techniques in reducing the cogging torque.

Citation

Copy Export

M. Arun Noyal Doss, R. Brindha, K. Mohanraj, Shubranshu Sekhar Dash, and K. M. Kavya, "A Novel Method for Cogging Torque Reduction in Permanent Magnet Brushless DC Motor Using T-Shaped Bifurcation in Stator Teeth," Progress In Electromagnetics Research M, Vol. 66, 99-107, 2018.
doi:10.2528/PIERM17110902

References

1. Islam, M. S., S. Mir, and T. Sebastian, "Issues in reducing the cogging torque of mass-produced permanent-magnet brushless DC motor," IEEE Trans. Ind. Applicat., Vol. 40, 813-820, May/Jun. 2004.
doi:10.1109/TIA.2004.827469

2. Arun Noyal Doss, M., S. Jeevananthan, S. S. Dash, and J. Hussain, "Critical evaluation of cogging torque in BLDC motor for various techniques," International Journal of Automation and Control, Vol. 7, No. 3, 135-146, Sep. 2013.
doi:10.1504/IJAAC.2013.057042

3. Shin, P. S., S. H. Woo, Y. Zhang, and C. S. Koh, "An application of Latin hypercube sampling strategy for cogging torque reduction of large-scale permanent magnet motor," IEEE Trans. Magn., Vol. 44, No. 11, 4421-4424, Nov. 2008.
doi:10.1109/TMAG.2008.2002479

4. Jiang, X., J. Xing, Y. Li, and Y. Lu, "Theoretical and simulation analysis of influences of stator tooth width on cogging torque of BLDC motors," IEEE Trans. Magn., Vol. 45, No. 10, 4601-4604, Nov. 2008.
doi:10.1109/TMAG.2009.2022639

5. Lin, D., S. L. Ho, and W. N. Fu, "Analytical prediction of cogging torque in surface-mounted permanent-magnet motors," IEEE Trans. Magn., Vol. 45, 3296-3302, Sept./Oct. 2009.

6. Saravanan, S., M. Arunnoyaldoss, S. Jeevananthan, and S. Vidyasagar, "Reduction of cogging torque by adapting semicircled permanent magnet," ICEES 2011, 2011.

7. Upadhyay, P. R. and K. R. Rajagopal, "FE analysis and CAD of radial-flux surface mounted permanent magnet brushless DC motors," IEEE Trans. Magn., Vol. 41, 3952-3954, Sept./Oct. 2005.
doi:10.1109/TMAG.2005.854978

8. Arun Noyal Doss, M., V. Ganapathy, V. Marthandan, and D. Mahesh, "Modeling and simulation of brushless DC motor for minimizing the cogging torque, harmonics and torque ripples," International Review on Modelling and Simulation, Vol. 6, No. 5, 1452-1457, PART-A, Oct. 2013.

9. Yang, Y., X. Wang, C. Zhu, and C. Huang, "Reducing cogging torque by adapting isodiametric permanent magnet," IEEE Proc.-Electro., 2009.

10. Arun Noyal Doss, M., Md. Rizwan, and S. Jeevananthan, "Reduction of cogging torque in PMBLDC motor with reduced stator tooth width and bifurcated surface area using finite element analysis," International Conference on Electrical Energy System at SSN, 106-110, 2011.

11. Fazil, M. and K. R. Rajagopal, "Nonlinear dynamic modeling of a single-phase permanent-magnetbrushless DC motor using 2-D static finite-element results," IEEE Trans. Magn., Vol. 47, No. 4, 781-786, Apr. 2011.
doi:10.1109/TMAG.2010.2103955

12. Wang, D., X. Wang, M.-K. Kim, and S.-Y. Jung, "Integrated optimization of two design techniques for cogging torquereduction combined with analytical method by a simple gradient descent method," IEEE Trans. Magn., Vol. 48, No. 8, 2265-2276, Aug. 2012.
doi:10.1109/TMAG.2012.2191416

13. Yang, Y., X. Wang, C. Zhu, and C. Huang, "Reducing cogging torque by adapting isodiametric permanent magnet," IEEE Proc.-Electro., 1028-1031, 2009.