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Effect of the magnet shape on the performance of coreless axial flux permanent magnet synchronous generator

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Abstract

This paper studies the effect of permanent magnet shape on the performance and efficiency of coreless axial flux permanent magnet synchronous generator (AFPMSG) for low-speed applications. The objective of this study was to come up with an optimal magnet shape among the studied cases that will lead to the highest value of induced EMF, eventually leading to the better output power of the machine. According to the obtained results, a coreless AFPMSG with a triangular magnet shape has higher induced EMF as compared to trapezoidal or skewed-shaped magnets. Also, a topology with rounded-triangular magnets is analyzed to investigate the effect of the rounded edges on the performance of the generator. 3D-finite element analysis (FEA) is used to analyze and compare the back-EMF and output power of all the investigated coreless AFPMSG topologies. This analysis is carried out using JMAG-Designer 19. 1.

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References

  1. Amin S, Khan S, Bukhari SSH (2019) A comprehensive review on axial flux machines and its applications. In: 2019 2nd International conference on computing, mathematics and engineering technologies (iCoMET), Sukkur, Pakistan, pp. 1–7, https://doi.org/10.1109/ICOMET.2019.8673422.

  2. Kahourzade S, Mahmoudi A, Ping HW, Uddin MN (2014) A comprehensive review of axial-flux permanent-magnet machines. Can J Electr Computer Eng 37(1):19–33. https://doi.org/10.1109/CJECE.2014.2309322

    Article  Google Scholar 

  3. Patterson DJ, Colton JL, Mularcik B, Kennedy BJ, Camilleri S, Rohoza R (2009) A comparison of radial and axial flux structures in electrical machines. In: (2009) IEEE International electric machines and drives conference. Miami, FL, USA, pp. 1029–1035. https://doi.org/10.1109/IEMDC.2009.5075331

  4. Capponi FG, De Donato G, Caricchi F (2012) Recent advances in axial-flux permanent-magnet machine technology. IEEE Trans Ind Appl 48(6):2190–2205. https://doi.org/10.1109/TIA.2012.2226854

    Article  Google Scholar 

  5. D. J. Patterson, G. Heins, M. Turner, B. J. Kennedy, M. D. Smith and R. Rohoza (2017) An overview of the compactness of a range of axial flux PM machines. In: 2017 IEEE Workshop on electrical machines design, control and diagnosis (WEMDCD), Nottingham, UK, pp. 27–32, https://doi.org/10.1109/WEMDCD.2017.7947719

  6. Mushid F. C, Dorrell DG (2017) Review of axial flux induction motor for automotive applications. In: 2017 IEEE Workshop on electrical machines design, control and diagnosis (WEMDCD), Nottingham, UK, pp. 146–151, https://doi.org/10.1109/WEMDCD.2017.7947738

  7. Syed QAS, You Y, Kwon B (2012) Design and comparative analysis of single and multi-stack axial flux permanent magnet synchronous generator. Int J Appl Electromagn Mech 39:865–872

    Article  Google Scholar 

  8. Daghigh Ali, Javadi Hamid, Torkaman Hossein (2017) Optimal design of coreless axial flux permanent magnet synchronous generator with reduced cost considering improved PM leakage flux model. Electr Power Compon Syst 45(3):264–278. https://doi.org/10.1080/15325008.2016.1248248

    Article  Google Scholar 

  9. Cetin E, Daldaban F (2018) Analyzing the profile effects of the various magnet shapes in axial flux PM motors by means of 3D-FEA. Electronics 7:13. https://doi.org/10.3390/electronics7020013

    Article  Google Scholar 

  10. Kumar P, Srivastava RK (2018) Influence of rotor magnet shapes on performance of axial flux permanent magnet machines. Prog Electromagn Res C 85:155–165. https://doi.org/10.2528/PIERC18041909

    Article  Google Scholar 

  11. Kappatou J, Zalokostas G, Spyratos D (2016) Design optimization of axial flux permanent magnet (AFPM) synchronous machine using 3D FEM analysis. J Electromagn Anal Appl 8:247–260. https://doi.org/10.4236/jemaa.2016.811023

    Article  Google Scholar 

  12. Shokri M, Rostami N, Behjat V, Pyrhönen J, Rostami M (2015) Comparison of performance characteristics of axial-flux permanent-magnet synchronous machine with different magnet shapes. IEEE Trans Magn 51(12):1–6. https://doi.org/10.1109/TMAG.2015.2460217

    Article  Google Scholar 

  13. Ikram J, Khan N, Khaliq S, Kwon B (2016) Reduction of torque ripple in an axial flux generator using arc shaped trapezoidal magnets in an asymmetric overhang configuration. J Magn 21(4):577–585

    Article  Google Scholar 

  14. Hikmawan M, Kasim M, Irasari P, Widiyanto P (2017) Analysis of magnet shape influence on rotor deflection on axial flux permanent magnet generator. In: 2017 International conference on sustainable energy engineering and application (ICSEEA), Jakarta, pp. 91–97, https://doi.org/10.1109/ICSEEA.2017.8267692

  15. Khan S, Bukhari SSH, Ro J (2019) Design and analysis of a 4-kW two-stack coreless axial flux permanent magnet synchronous machine for low-speed applications. IEEE Access 7:173848–173854. https://doi.org/10.1109/ACCESS.2019.2957046

    Article  Google Scholar 

  16. Kurihara K, Yoshino H, Shimauchi K (2018) Surface permanent magnet motors with complicated permanent magnet shapes formed by binder-less net shaping process. In: 2018 21st International conference on electrical machines and systems (ICEMS), Jeju, Korea (South), pp. 510–513, https://doi.org/10.23919/ICEMS.2018.8549429

  17. Suzuki H, Sato M, Hanafi AIM, Itoi Y, Suzuki S, Ito A (2017) Magnetic field performance of round layout linear Halbach array using cylinder-shaped permanent magnets. In: 2017 11th International symposium on linear drives for industry applications (LDIA), Osaka, Japan, pp. 1–2, https://doi.org/10.23919/LDIA.2017.8097248

  18. Yamazaki K, Kondo R (2019) Reduction of cross magnetization in interior permanent magnet synchronous motors with V-shape magnet configurations by optimizing rotor slits. In: 2019 IEEE Energy conversion congress and exposition (ECCE), Baltimore, MD, USA, pp. 4873–4879, https://doi.org/10.1109/ECCE.2019.8911875

  19. Hong SG, Park IH (2020) Continuum-sensitivity-based optimization of interior permanent magnet synchronous motor with shape constraint for permanent magnet. IEEE Trans Magn 56(2):1–4. https://doi.org/10.1109/TMAG.2019.2945571

    Article  MathSciNet  Google Scholar 

  20. Herlina, R. Setiabudy, Rahardjo A. (2017) Cogging torque reduction by modifying stator teeth and permanent magnet shape on a surface mounted PMSG. In: 2017 International seminar on intelligent technology and its applications (ISITIA), Surabaya, Indonesia, pp. 227–232, https://doi.org/10.1109/ISITIA.2017.8124085

  21. Chai F, Bi Y, Pei Y (2018) Magnet shape optimization of two-layer spoke-type axial flux interior permanent magnet machines. Energies 11:15. https://doi.org/10.3390/en11010015

    Article  Google Scholar 

  22. Lee H, Shin K, Bang T, Choi J, Cho S (2018) Characteristic Analysis of a V-Shape Interior Permanent Magnet Synchronous Motor According to Design Parameter. In: 2018 21st International conference on electrical machines and systems (ICEMS), Jeju, Korea (South), pp. 505–509, https://doi.org/10.23919/ICEMS.2018.8549336

  23. Dong F, Zhao J, Zhao J, Song J (2019) Thrust ripple reduction of air-core permanent magnet linear synchronous motor based on arc shaping technique and Taguchi method. In: 2019 IEEE International electric machines drives conference (IEMDC), San Diego, CA, USA, pp. 1169–1174, https://doi.org/10.1109/IEMDC.2019.8785144

  24. Reza MM, Ahmad A, Kumar P, Srivastava RK, (2017) Semi-analytical model for triangular skewed permanent magnet axial flux machine. In: 2017 IEEE Transportation electrification conference (ITEC-India), Pune, pp. 1–5, https://doi.org/10.1109/ITEC-India.2017.8333843

  25. Patterson D J, Heins G, Turner M, Kennedy B J, Smith MD, Rohoza R (2017) An overview of the compactness of a range of axial flux PM machines. In: Proceedings - 2017 IEEE workshop on electrical machines design, control and diagnosis, WEMDCD 2017, pp. 27–32, https://doi.org/10.1109/WEMDCD.2017.7947719.

  26. Radwan-Praglowska N (2018) Impact of permanent magnets shape and arrangement for selected parameters in coreless axial flux generator. In: 2018 International symposium on electrical machines (SME), Andrychow, Poland, pp. 1–6, https://doi.org/10.1109/ISEM.2018.8442975

  27. Simon-Sempere V, Simon-Gomez A, Burgos M, Cerquides-Bueno J-R (2021) Optimization of magnets shape for cogging torque reduction in axial-flux permanent magnet motors. IEEE Trans Energy Convers. https://doi.org/10.1109/TEC.2021.3068174

    Article  Google Scholar 

  28. Xiao L, Li J, Qu R, Lu Y, Zhang R, Li D (2017) Cogging torque analysis and minimization of axial flux PM machines with combined rectangle-shaped magnet. IEEE Trans Ind Appl 53(2):1018–1027. https://doi.org/10.1109/TIA.2016.2631522

    Article  Google Scholar 

  29. Carpi YL, Henaux C, Llibre J, Harribey D (2020) 3D Hybrid model of the axial flux motor accounting magnet shape. IEEE Trans Magn. https://doi.org/10.1109/TMAG.2019.2950892

    Article  Google Scholar 

  30. Du ZS, Lipo TA (2020) Reducing torque ripple using axial pole shaping in interior permanent magnet machines. IEEE Trans Ind Appl 56(1):148–157. https://doi.org/10.1109/TIA.2019.2946237

    Article  Google Scholar 

  31. Aakif Baig M, Ikram J, Iftikhar A, Bukhari SSH, Khan N, Ro J-S (2020) Minimization of cogging torque in axial field flux switching machine using arc shaped triangular magnets. IEEE Access 8:227193–227201. https://doi.org/10.1109/ACCESS.2020.3044922

    Article  Google Scholar 

  32. Yousuf M, Khan F, Ikram J, Badar R, Bukhari SSH, Ro J-S (2021) Reduction of torque ripples in multi-stack slotless axial flux machine by using right angled trapezoidal permanent magnet. IEEE Access 9:22760–22773. https://doi.org/10.1109/ACCESS.2021.3056589

    Article  Google Scholar 

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Authors and Affiliations

  1. Department of Electrical Engineering, Sukkur IBA University, Sukkur, 65200, Pakistan

    Shahbaz Amin, Sahib Khan, Syed Sabir Hussain Bukhari & Faheem Akhtar

  2. School of Electrical and Electronics Engineering, Chung-Ang University, Seoul, 06974, South Korea

    Sadjad Madanzadeh & Jong-Suk Ro

Authors
  1. Shahbaz Amin
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  2. Sadjad Madanzadeh
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  3. Sahib Khan
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  4. Syed Sabir Hussain Bukhari
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  5. Faheem Akhtar
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  6. Jong-Suk Ro
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Correspondence to Syed Sabir Hussain Bukhari or Jong-Suk Ro.

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This research was supported by the Brain Pool (BP) Program through the National Research Foundation (NRF) of Korea funded by the Ministry of Science and ICT (2019H1D3A1A01102988) and the Chung-Ang University Research Grants in 2020.

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Amin, S., Madanzadeh, S., Khan, S. et al. Effect of the magnet shape on the performance of coreless axial flux permanent magnet synchronous generator. Electr Eng 104, 959–968 (2022). https://doi.org/10.1007/s00202-021-01338-x

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  • DOI: https://doi.org/10.1007/s00202-021-01338-x

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