Novel Arrangement of Combined Star-Delta Stator Winding Aimed at Reduction of Copper Usage in Electric Machine

0490731 - ÚT 2019 RIV PL eng J - Journal Article
Schreier, Luděk - Bendl, Jiří - Chomát, Miroslav
Novel Arrangement of Combined Star-Delta Stator Winding Aimed at Reduction of Copper Usage in Electric Machine.
Maszyny elektryczne - Zeszyty Problemowe. Roč. 119, č. 3 (2018), s. 117-122. ISSN 0239-3646
R&D Projects: GA ČR(CZ) GA16-07795S
Institutional support: RVO:61388998
Keywords : induction machine * combined star-delta winding * finite element method
OECD category: Electrical and electronic engineering

The submitted paper deals with the increased energy efficiency of induction machines by means of the so-called combined stator winding. Two basic variants of this winding, the series and parallel ones, are shown. The suppression of higher harmonics is analysed by means of the method of space vectors and symmetrical components. It is shown that the so-called series variant of the combined winding has a better ability to suppress higher spatial harmonics. The paper presents a proposal of an adapted combined winding whose pitch is smaller than that of the used three-phase winding.
Permanent Link: http://hdl.handle.net/11104/0285254