AC Distributed Winding with Low Higher Spatial Harmonics Content in Mmf Distribution

Jan Staszak ()
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Jan Staszak: Department of Electrical Power Engineering, Power Electronics and Electrical Machines, Kielce University of Technology, Al. 1000-lecia P.P. 7, 25-314 Kielce, Poland

Energies, 2023, vol. 16, issue 14, 1-18

Abstract: This paper presents a new winding with a low higher spatial harmonics content. This winding enables the elimination of the fifth harmonic, as the most significant, in three-phase winding and the third harmonic in two-phase symmetrical winding. The suppression of higher spatial harmonics is particularly evident with the number of slots per pole per phase q s = 2. The winding factors for the higher spatial harmonics of the order ν = 6 k ± 1 in the case of three-phase winding, and ν = 4 k ± 1 in the case of two-phase winding, for k = 1, 3, 5, …, will be equal to zero. A two-phase measurement winding, with the number of slots per pole per phase q s = 1, was used to evaluate the higher spatial harmonics content in the magnetic field in the air gap of the machine. Experimental verification of the designed winding was carried out.

Keywords: rotating machines; electrical machines design; three-phase and two-phase distributed windings; two-phase measurement winding; winding factor; spatial harmonics; harmonic reduction (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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