A comparative analysis of four-pole brushless DC motors with different slot and winding arrangement based on THD values

Yıl 2020, Cilt: 7 Sayı: 1, 7 - 12, 11.04.2020

Cemil Ocak , Adem Dalcalı

https://doi.org/10.31593/ijeat.669064

Cited By: 1

Öz

Brushless DC motors (BLDC) are widely used in variable speed drive applications. Nowadays the relationship between the number of poles, slots and winding arrangements in BLDC motors continues to be a very challenging topic. The main objective of this work was to develop and compare four-pole BLDC motors with different slot numbers (6, 12 and 15) and winding arrangements. Three-dimensional finite element analysis (FEA) was conducted to characterize the proposed designs. The Total Harmonic Distortion (THDv) which tells the amount of harmonics present in the voltage have been obtained and compared based on the different slot numbers and winding arrangement. In the study, an extensive investigation of the THDv values in four-pole BLDC motors having different slot and winding configurations has been carried out. From the simulated results it is evident that the lowest THDv and corresponding sinusoidal back emf can be obtained by implementing 15 slots within four-pole designs. The performance values have been examined comparatively by analysing the motors at the rated condition.

Anahtar Kelimeler

BLDC, FEM, Slot, Total harmonic distortion

Kaynakça

• D. Hanselman, Brushless Permanent Magnet Motor Design 2nd Ed., Magna Physics Publishing, Ohio, pp.1-51, 2006.
• A. Saygın, C. Ocak, A. Dalcalı and E, Çelik, “Optimum Rotor Design of Small PM BLDC Motor Based on High Efficiency Criteria,” ARPN Journal of Engineering and Applied Sciences, Vol. 10 (19), pp. 9127-9132, 2015.
• A. Dalcalı, “Design and optimization of brushless direct current motor for rotary cryogenic coolers,” M. Sc. Thesis, Gazi University, Ankara, Turkey, 2013.
• A. M. Ajamloo, A. Ghaheri, E. Afjei, “Multi-objective Optimization of an Outer Rotor BLDC Motor Based on Taguchi Method for Propulsion Applications,” 10th International Power Electronics, Drive Systems and Technologies Conference, pp. 34-39, 2019.
• Y. B. Adyapaka Apatya, A. Subiantoro and F. Yusivar, “Design and Prototyping of 3-Phase BLDC Motor,” 15th Intl. Conf. QiR: Intl. Symp. Elec. and Com. Eng, pp. 209-214, 2017.
• S. Sakunthala, R. Kiranmayi and P. N. Mandadi, “A Study on Industrial Motor Drives Comparison and Applications of PMSM and BLDC Motor Drives,” International Conference on Energy, Communication, Data Analytics and Soft Computing, pp. 537-540, 2017.
• M. N. Gujjar and P. Kumar, “Comparative analysis of Field oriented control of BLDC motor using SPWM and SVPWM techniques,” 2nd IEEE International Conference on Recent Trends in Electronics Information & Communication Technology, pp. 924-929, 2017.
• J. S. Park, K. D. Lee, S. G. Lee and W. H. Kim, “Unbalanced ZCP Compensation Method for Position Sensorless BLDC Motor,” IEEE Transactions on Power Electronics, Vol. 34(4), pp. 3020-3024, 2019.
• W. Han, Y. Y. Ko, M. K. Seo, Y. J. Kim, S. Y. Jung, “Structural Design Methodology of BLDC Motor Considering Response Time of Phase Current,” 21st International Conference on Electrical Machines and Systems, pp. 248-251, 2018.
• Y. U. Park, D. K. Kim, “Analytical prediction of the cogging torque in external-rotor single-phase BLDC motors with tapered air-gap,” International Journal of Applied Electromagnetics and Mechanics, Vol. 1, pp. 1-8, 2018.
• H. Y. Lee, B. C. Jeon, W. K. Park and S. C. Lee, “Design and Verification of Sensorless BLDC Motor Start-up Logic with FPGA,” International SoC Design Conference, pp. 341-342, South Korea, 2016.
• B. V. R. Kumar and K. S. Kumar, “Design of A New Dual Rotor Radial Flux BLDC Motor with Halbach Array Magnets for an Electric Vehicle,” IEEE International Conference on Power Electronics, Drives and Energy Systems, India, 2016.
• E. Carraro, S. Zhang and Koch, “Design and performance comparison of fractional slot concentrated winding spoke type synchronous motors with different slot-pole combinations,” IEEE Transactions on Industry Applications, Vol. 54(3), 2276-2284, 2018.
• H.W. Jun, H. S. Seol and J. Lee, “Effect of pole–slot combination on eddy-current formation in PMSM rotor assembly including retaining plate structure,”. IEEE Transactions on Magnetics, Vol. 53(11), 2017.
• S. Jafarishiadeh, M. Ardebili and A. N. Marashi, “Investigation of pole and slot numbers in axial-flux pm BLDC motors with single-layer windings for electric vehicles,” 24th Iranian Conference on Electrical Engineering, Iranian, 2016.
• A. A. Rajan, S. Vasantharathna, “Harmonics and Torque Ripple Minimization using L-C Filter for Brushless DC Motors,” International Journal of Recent Trends in Engineering, Vol 2(5), 239-243, 2009.
• M. A. Doss, E. Premkumar, G. R. Kumar, J. Hussain, “Harmonics and Torque Ripple Reduction of Brushless DC Motor (BLDCM) using Cascaded H-Bridge Multilevel Inverter,” International Conference on Power, Energy and Control, 296-299, 2013.
• H. S. Kim, Y. M. You, B. I. Kwon, “Rotor Shape Optimization of Interior Permanent Magnet BLDC Motor According to Magnetization Direction,” IEEE Transactions on Magnetics, Vol. 49(5), 2013.
• B. I. Kwon, “Investigation of slot-pole combinations on IPM BLDC motor considering magnetization direction,” International Journal of Applied Electromagnetics and Mechanics, Vol. 1, 1-8, 2018.
• P. Upadhayay, K. R. Rajagopal, “Torque ripple reduction using magnet pole shaping in a surface mounted Permanent Magnet BLDC motor,” International Conference on Renewable Energy Research and Applications, pp. 516-521, 2013.
• C. Ocak, “Design and Performance Comparison of Four-Pole Brushless DC Motors with Different Pole/Slot Combinations,” The International Journal of Energy & Engineering Sciences, Vol. 3(3), pp. 69-78, 2018.
• A. Dalcalı and M Akbaba, “Optimum pole arc offset in permanent magnet synchronous generators for obtaining lowest voltage harmonics,” Scientia Iranica D, Vol. 24(6), pp.3223-3230, 2017.
• R. Ingale, “Harmonic Analysis Using FFT and STFT,” International Journal of Signal Processing, Image Processing and Pattern Recognition, Vol. 7(4), pp. 345-362, 2014.
• W. C. Lo, C. C. Chan, Z. Q. Zhu, L. Xu, D. Howe and K. T. Chau, "Acoustic noise radiated by PWM-controlled induction machine drives," IEEE Transactions on Industrial Electronics, Vol. 47 (4), pp. 880–889, 2000.
• A. Mollaeian, S. M. Sangdehi, A. Balamurali, G. Feng, J. Tjong and N. C. Kar, "Reduction of space harmonics in induction machines incorporating rotor bar optimization through a coupled IPSO and 3-D FEA algorithm," XXII International Conference On Electrical Machines, pp. 557–563, Lausanne, 2016.
• V. Kindl, K. Hruska, J. Sobra and M. Byrtus, "Effect of induction machine's load and rotor eccentricity on space harmonics in the air gap magnetic flux density," 16th International Conference on Mechatronics-Mechatronika, pp. 463–468, Brno, 2014.
• V. I. Patel, J. Wang, W. Wang and X. Chen, "Analysis and design of 6-phase fractional slot per pole per phase permanent magnet machines with low space harmonics," IEEE International Electric Machines & Drives Conference, pp. 6–13, Chicago, 2013.
• Ö. Şenyurt, " Harmonic analysis determined with fast fourier transform on electric networks," M. Sc. Thesis, Gazi University, Ankara, Turkey, 2006.
• C. Kocatepe, M. Uzunoğlu, R. Yumurtacı, A. Karakas, and O. Arıkan, Harmonics in Electrical Installations, Birsen Publication, ISBN: 975-511-354-1, 2003.
• A. A. Pop, H. Balan and M. Radulescu, “Flux-density space-harmonics minimization for an axial-flux permanent-magnet machine,” 4th International Symposium on Electrical and Electronics Engineering, Romania, 2013.