Open Access Open Access  Restricted Access Subscription or Fee Access

Magnetically Coupled Electrical Machines for Renewable Energy Applications


(*) Corresponding author


Authors' affiliations


DOI: https://doi.org/10.15866/iree.v15i4.17651

Abstract


Mechanical coupling between the drive and the driven systems in electrical machines poses design challenges. Rigid and flexible couplings have a trade-off between the rotational speed and vibrations, which are associated with misalignment. This paper discusses a procedure for obtaining the dimensions of a pre-designed rigid (flange-type) mechanical coupling system using the finite element-based electromagnetic full-wave simulator element software (FE, ANSYS) for a benchmark torque and proposes a process that replaces a mechanical coupling system by a magnetic coupling system. This paper also elaborates on the comparative performance analysis between magnetic coupling and mechanical coupling. The simulation results of this analysis affirm that adjusting the flange diameter and thickness tune the magnetic coupling system performance similar to that of the mechanical coupling with an added advantage of auto-decoupling when exposed to higher loads. The auto-decoupling property protects the mechanical and electrical system from damage. This research considers the use of COMSOL Multiphysics software for determining the optimum number of magnets to couple the flanges for specified torque and speed, the distance between the flanges, and limits of angular and parallel misalignments. JMAG software is used for the analysis of the dynamic behaviour of the magnetic coupling system and the holding torque characteristics. This manuscript shows that the magnetic coupling technique has promising results in the renewable energy industry, such as wind energy, wave energy and electric vehicles.
Copyright © 2020 Praise Worthy Prize - All rights reserved.

Keywords


Mechanical Coupling; Magnetic Coupling; Finite Element; Electrical Machines; Wind Energy; Renewable Energy

Full Text:

PDF


References


Andrei G Ter-Gazarian, Energy storage for power systems, IET, No. 6, June 1994, ISBN-13: 978-0863412646.

Melissa C Lott et al. Technology roadmap: energy storage, International Energy Agency (IEA): Paris, France, 2014.

R. Ferroukhi, A. Khalid, D. Hawila, D. Nagpal, L. El-Katiri, V. Fthenakis, A. Al-Fara, Renewable Energy Market Analysis: The GCC Region International Renewable Energy Agency: IRENA, Abu Dhabi, UAE (2016).

Salama, H., Said, S., Vokony, I., Hartmann, B., Power System Improvement of Different Coordinated Electric Vehicles Integration Approaches with Superconducting Magnetic Energy Storage, (2019) International Review of Electrical Engineering (IREE), 14 (6), pp. 407-419.
https://doi.org/10.15866/iree.v14i6.17315

El Harouri, K., El Hani, S., Elbouchikhi, E., Benbouzid, M., Mediouni, H., Grid-Connected Plug-in Electric Vehicles Charging Stations Energy Management and Control, (2019) International Journal on Energy Conversion (IRECON), 7 (2), pp. 49-57.
https://doi.org/10.15866/irecon.v7i2.17001

Sepeeh, M., Zulkifli, S., Sim, S., Pathan, E., A Comprehensive Review of Field-Oriented Control in Sensorless Control Techniques for Electric Vehicle, (2018) International Review of Electrical Engineering (IREE), 13 (6), pp. 461-475.
https://doi.org/10.15866/iree.v13i6.15536

K. T. Chau, W. L. Li, and C. H. T. Lee, Challenges and opportunities of electric machines for renewable energy, Progress in Electromagnetics Research B, Vol. 42, 2012, pp. 45 – 74.
https://doi.org/10.2528/pierb12052001

M. I. Masoud, M. Hamad, S. J. Finney, and B. W. Williams, Low speed, large diameter, direct-drive permanent magnet synchronous generator with electrical gearing for wind energy systems, The 20th International Conference on Electricity Distribution, CIRED, Prague, June 2009.
https://doi.org/10.1049/cp.2009.0649

The Switch PMG vs. DFIG-the generator technology debate.

Available at: https://theswitch.com/2014/03/20/pmg-vs-dfig-the-big-generator-technology-debate/

Hadjou, F., Tabbache, B., Berkouk, E., Noui, S., Benbouzid, M., Experimental Investigation of Wind Turbine Emulator for PMSM-Based Energy Conversion Systems, (2018) International Journal on Energy Conversion (IRECON), 6 (5), pp. 144-152.
https://doi.org/10.15866/irecon.v6i5.16276

J. Carroll, A. McDonald, and D. Mcmillan, Reliability comparison of wind turbines with DFIG and PMG drive trains, IEEE Transaction on Energy Conversion, Vol. 30, no. 2, June 2015, PP. 663–670.
https://doi.org/10.1109/tec.2014.2367243

Jack A Collins, Henry R Busby, and George H Staab. Mechanical design of machine elements and machines: a failure prevention perspective John Wiley and Sons, 2010.

Michael Neale, Paul Needham, and Roger Horrell, Couplings and shaft alignment, Mechanical engineering publications,1991.

Jon R Mancuso, Couplings and Joints, design, selection and application, CRC Press, 1999, ISBN-13: 978-0824799502.

SB Tuljapure Shweta Shashikant Pakale, Causes of coupling failures and preventive actions, International Journal for Research in Applied Science and Engineering Technology, (IJRASET), vol. 3, no. VIII, August 2015, pp. 412 – 415.

J-P Yonnet Permanent magnet bearings and couplings, IEEE Transactions on Magnetics vol. 17, no. 1, 1981, pp. 1169–1173.
https://doi.org/10.1109/tmag.1981.1061166

Amanda’s Blog, The different types of magnetic coupling.

Available at: https://alamb22340.weebly.com/blog/the-different-types-of-magnetic-coupling/

New TEA Products, Permanent magnetic coupling. Available at:

http://www.teausa.net/Portals/0/uploads/TEA-Permanent-Magnetic-couplings.pdf/, 2012

Dexter Magnetic Technologies. Couplings Available at:

https://www.dextermag.com/products/magnetic assemblies/couplings/

APDL ANSYS. Theory Reference for Mechanical APDL and Mechanical Applications. In: ANSYS, Inc. (2009).
https://doi.org/10.1016/b978-0-12-812981-4.00021-6

Ben McGilton, Markus Mueller, and Alasdair McDonald. Review of magnetic gear technologies and their applications in marine energy, IET Renewable Power Generation, Vol. 12, no. 2, November 2017, pp. 174 – 181
https://doi.org/10.1049/iet-rpg.2017.0210

Y. Wang, M. Filippini, N. Bianchi, and P. Alotto, A Review on Magnetic Gears: Topologies, Computational Models and Design Aspects The XIII International Conference on Electrical Machines (ICEM), 2018.
https://doi.org/10.1109/icelmach.2018.8507204

C. G. C. Neves, Á. F. Flores, D. L. F., and A. S. Nunes, A Magnetic gear: A review, The 11th IEEE/IAS International Conference on Industry Applications, 2014.
https://doi.org/10.1109/induscon.2014.7059417

M. Johnson, M. C. Gardner, H. A. Toliyat, S. Englebretson, W Ouyang, and Colin Tschida Design, Construction, and Analysis of a Large-Scale Inner Stator Radial Flux Magnetically Geared Generator for Wave Energy Conversion, IEEE Transactions on Industry Applications, Vol. 54, no. 4, 2018, pp. 3305 – 3314.
https://doi.org/10.1109/tia.2018.2828383

Masato Sagawa et al. Nd–Fe–B permanent magnet materials, Japanese Journal of applied physics, 26.6R, 1987, pp. 785.

COMSOL Multiphysics. Comsol, Inc. In: Burlington, MA (2005).

ANSYS Maxwell. 3D Field Simulator v16 User’s Guide.

J. R. Cardoso, Electromagnetics through the Finite Element Method: A simplified approach Using Maxwell’s Equations CRC Press, 2016. ISBN-13: 978-1498783576.
https://doi.org/10.1201/9781315366777

JMAG. Torque Decoupling of In-Out Magnetic Coupling. In: JMAG Application Note (2017).

P. C. Sen, Principles of electric machines and power electronics, John Wiley and Sons, 2014. ISBN-13: 978-1118078877.


Refbacks

  • There are currently no refbacks.


Please send any question about this web site to info@praiseworthyprize.com
Copyright © 2005-2024 Praise Worthy Prize