Autors: Stoyanov, T. M., Spasov, R. L., Rizov, P. M. Title: Investigation of the skewing of the slots in permanent magnet synchronous machines Keywords: permanent magnet synchronous motor, rotor segmentations, 2D Abstract: This paper presents a study of slot skewing in a permanent magnet synchronous motor. Several cases are considered where the rotor is divided into multiple segments. The segmentation is done in the area between two stator slots. Three segmentations were performed in order to obtain more accurate results while saving computing time. A 2D model based on finite element method was used instead of a 3D one due to the requirement of low computing time. The accuracy of the solution is not significantly affected due to the selection of a 2D model. Different types of segmentations are used to evaluate the maximum value of the main harmonic of electromotive force and air-gap torque. The studies were performed for three different values of current density. References - Е. Rachev, V. Petrov, Mastering the transient process of switching from scalar to vector control for smooth startup of a synchronous permanent magnet motor, 11th Electrical Engineering Faculty Conference, 2019.
- F. Bahrim, E. Sulaiman, R. Kumar, L. Jusoh, New cogging torque reduction methods for permanent magnet machine, International Research and Innovation Summit (IRIS2017), https://iopscience.iop.org/article/10.1088/1757-899X/226/ 1/012127/ pdf.
- J. Besnerais, Q. Souron, Design of quiet permanent magnet synchronous electrical motors by optimum skew angle, 23rd International congress on sound and vibration, 2016, https://eomys.com/IMG/pdf/design_of_quiet_permanent_magnet_synchronous_electrical_motors_by_optimum_skew_angle.pdf.
- K. Abbaszadeh, F. Alam, S. Saied, Cogging torque optimization in surface-mounted permanent-magnet motors by using design of experiment, Energy Conversion and Management 52 (2011), https://reader.elsevier.com/reader/sd/pii/S0196890411001397?token=84DAAD6A82D4063BFD8C0EC0C3D11564DB70C46B696B9DA83CD940E80DD69F8F6DCAA3515BB70316C8B07EC2C8C62147.
- L. Melcescu, M. Covrig, A. Moraru, analyses of core skewing influence in permanent magnet synchronous machine by 2d fem field computation, 2006, https://www.scientificbulletin.upb.ro/rev_docs_ arhiva/full44720.pdf.
- N. Levin1, S. Orlova, V. Pugachov, B. Ose-Zala, E. Jakobsons, Methods to reduce the cogging torque in permanent magnet synchronous machines, Elektronika ir elektrotechnika, ISSN 1392-1215, VOL. 19, NO. 1, 2013, https://www.researchgate.net/ publication/274432066_Methods_to_Reduce_the_Cogging_Torque_in_Permanent_Magnet_Synchronous_Machines.
- R. Ni, D. Xu, G. Wang, L. Ding, G. Zhang, L. Qu, Maximum efficiency per ampere control of permanent-magnet synchronous machines, IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 62, NO. 4, APRIL 2015, https://www.researchgate.net/profile/Ron_ Ni/ publication/ 273341847_Maximum_Efficiency_Per_Ampere_Control_of_Permanent Magnet_Synchronous_Machines/links/554d5d0c08 aeedf 175638b99/ Maximum-Efficiency-Per-Ampere-Control-of-Permanent-Magnet-Synchronous-Machines.pdf.
- V. Ruuskanen, P. Immonen, J. Nerg, J. Pyrhönen, Determining electrical efficiency of permanent magnet synchronous machines with different control methods, https://link.springer.com/ article/ 10.1007/s00202-011-0223-5.
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| 12th Electrical Engineering Faculty Conference, BulEF 2020, 2020, Bulgaria, ISBN 978-172819439-4 |
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