Novel arrangement of combined star-delta stator winding aimed at reduction of copper usage inelectric machine

• Autorzy: Schreier L. , Bendl J. , Chomat M.

Warianty tytułu

Nowy układ uzwojenia mieszanego gwiazda-trójkąt w stojanie zmniejszający zużycie miedzi w maszynie elektrycznej

• Języki publikacji: EN

Abstrakty

EN

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 commonly used combined winding has, however, a longer pitch and thus bigger stator resistance and greater consumption of copper. The paper presents a proposal of an adapted combined winding whose pitch is smaller than that of the used three-phase winding. This fact results in decreasing the consumption of copper conductors with preserving the energy efficiency. The results of the analysis have been verified by measurements on physical models of machines with the combined and the adapted combined windings.

Słowa kluczowe

EN

electric machine; stator; three-phase winding

• Wydawca: Sieć Badawcza Łukasiewicz - Górnośląski Instytut Technologiczny
• Czasopismo: Maszyny Elektryczne : zeszyty problemowe
• Rocznik: 2018
• Tom: Nr 3 (119)
• Strony: 117--122
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Schreier L.

• Institute of Thermomechanics, AS CR, v.v.i. Department of Electrical Engineering and Electrophysics Dolejskova 5 18200 Prague 8, Czech Republic

autor

Bendl J.

• Institute of Thermomechanics, AS CR, v.v.i. Department of Electrical Engineering and Electrophysics Dolejskova 5 18200 Prague 8, Czech Republic

autor

Chomat M.

• Institute of Thermomechanics, AS CR, v.v.i. Department of Electrical Engineering and Electrophysics Dolejskova 5 18200 Prague 8, Czech Republic

Bibliografia

• [1]. Kasten H., Hofmann W.: Electrical Machines with Higher Efficiency through Combined Star-Delta Windings. Proc. of IEEE International Electric Machines and Drives Conference. 2011, pp. 1374-1379.
• [2]. Raziee S.M., Misir O., Ponick B.: Combined Star-Delta Winding Analysis. IEEE Transaction on Energy Conversion. 2017, pp. 1-12.
• [3]. Schreier L., Bendl J., Chomat M.: Analysis of Induction Machines with Combined Stator Windings. Acta Technica vol. 60, 2015, pp. 155-171.
• [4]. Schreier L., Bendl J., Chomat M.: Effect of combined stator winding on reduction of higher spatial harmonics in induction machine. Electrical Engineering 10, 2016, pp. 1-9.
• [5]. Schreier L, Bendl J., Chomat M.: Analysis of Properties of Induction Machine with Combined Parallel Star-Delta Stator Winding. Maszyny Elektryczne-Zeszyty Problemowe 1. 2017, pp 147-153.
• [6]. Stepina J.: Fundamental Equations of the Space Vector Analysis of Electrical Machines. Acta Technica CSAV (6), 1968, pp.184-198.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).