Magnetic Flux Switching Type Permanent Magnet Generator for Bicycles: Modelling and an Experimental Study

Bezrukovs, V.; Bezrukovs, Vl.; Konuhova, M.; Bezrukovs, D.; Berzins, A.; Trokss, J.

doi:10.2478/lpts-2022-0024

Abstract

The article introduces two new designs of flux switching permanent magnet alternators with a radial and an axial arrangement of the inductor relative to the magnetic flux switch. The study presents the results of 3D magnetic flux modelling along with the outcomes of physical experiments. In the course of laboratory experiments, the results of theoretical estimations are compared with actual physical performance parameters. The results are presented in the form of power and output voltage curves in relation to the frequency and load current. The study proposes the practical application of the alternators based on the magnetic flux switching principle in the development of a bicycle generator. Laboratory test models are made of a laminated steel using a waste-free technology.

References

1. Patent 1893: Generator for bicycle, GB 9662.
Search in Google Scholar Back to article
2. Chefford Master MFG Co Inc. (1948). Patent US 2453523A 1948: Bicycle Generator Regulated by Rotor Torque Variations. USA.
Search in Google Scholar Back to article
3. Wilfried, S. (1994). Hub Generator, Especially for Bicycles. Patent EP0591724A1.
Search in Google Scholar Back to article
4. Bridgestone Cycle Co. (1995). Hub Generator for Bicycle. Patent JPH0710057A.
Search in Google Scholar Back to article
5. Shimano KK. (2003). Claw-Pole Generator and Hub Dynamo for Bicycle. Patent JP2003333777A.
Search in Google Scholar Back to article
6. Spooner, E., Tavner, P., Mueller, M.A., Brooking, P.R.M., & Baker, N.J. (2004). Vernier Hybrid Machines for Compact Drive Applications. In: Second International Conference on Power Electronics, Machines and Drives (PEMD 2004), (pp. 452–457), 31 March–2 April 2004, Edinburgh, UK.10.1049/cp:20040330
Search in Google Scholar Back to article
7. Raihan, M.A.H., Baker, N.J., Smith, K.J, & Almoraya A.A. (2018). Development of Low Translator Mass Linear Vernier Machine for Wave Energy Power Take Off. In: The 7th International Conference on Renewable Power Generation, (pp. 1–5), 26–27 September 2018, DTU, Lyngby, Copenhagen, Denmark.
Search in Google Scholar Back to article
8. Rauch, S.R., & Johnson, L.J. (1955). Design Principles of Flux Switch Alternators. IEE Trans Power Apparatus and Systems, Part III, 74 (3), 1261–1268..10.1109/AIEEPAS.1955.4499226
Search in Google Scholar Back to article
9. Kwon, J.W., Lee, J.H., Zhao, W., & Kwon, B.I. (2018). Flux-Switching Permanent Magnet Machine with Phase-Group Concentrated-Coil Windings and Cogging Torque Reduction Technique. Energies, 11 (2758), 1–11.10.3390/en11102758
Search in Google Scholar Back to article
10. Diab, H., Amara, Y., & Barakat, G. (2020). Open Circuit Performance of Axial Air Gap Flux Switching Permanent Magnet Synchronous Machine for Wind Energy Conversion: Modeling and Experimental Study. Energies, MDPI. Open Access Journal, 13 (4), 1–19.10.3390/en13040912
Search in Google Scholar Back to article
11. Zhu, Z.Q., & Chen, J.T. (2010). Advanced Flux-Switching Permanent Magnet Brushless Machines. IEEETrans. Magn., 46, 1447–1453.10.1109/TMAG.2010.2044481
Search in Google Scholar Back to article
12. Andrada, P., & Martínez, F. (2016). Flux Switching Alternators for Small Wind Generation. Renew. Energy Power Qual. J., 1, 67–68.10.24084/repqj14.426
Search in Google Scholar Back to article
13. Bezrukovs, V., & Levins, N. (2008). Generator for Bicycle. Patent LV13750.
Search in Google Scholar Back to article
14. Bezrukovs, V., & Levins, N. (2009). Bicycle Generator. Patent WO2009084938.
Search in Google Scholar Back to article
15. Bezrukovs, D., Bezrukovs, V., Bezrukovs, Vl., & Levins, N. (2011). Contactless Generator for Bicycle. Patent LV 14377.
Search in Google Scholar Back to article
16. Bezrukovs, D., Bezrukovs, V., Bezrukovs, Vl., & Levins, N. (2012). Axial Inductor Generator for Bicycle. Patent LV 14550.
Search in Google Scholar Back to article
17. Bezrukovs, D., Bezrukovs, V., Bezrukovs, Vl., & Levins, N. (2013). Inductor Generator for Bicycle. Patent LV 14695.
Search in Google Scholar Back to article
18. Dombur, L. (1984). Axial Inductor Machines. Riga: Zinatne, 247.
Search in Google Scholar Back to article
19. Bezrukovs V., Bezrukovs Vl., Bezrukovs D., Konuhova M., Berzins A. (2020): Magnetic flux switching type permanent magnet generator. LV15501, 20.12.2020.
Search in Google Scholar Back to article
20. Bezrukovs V., Bezrukovs Vl., Bezrukovs D., Konuhova M., Berzins A. (2022): Magnetic flux switching type permanent magnet generator. EP3955439A1·2022-02-16.
Search in Google Scholar Back to article

Magnetic Flux Switching Type Permanent Magnet Generator for Bicycles: Modelling and an Experimental Study

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