Comparison of selected properties of three- and five-phase induction motors

• Autorzy: Schreier L. , Bendl J. , Chomat M.
• Języki publikacji: EN

Abstrakty

EN

The paper analyses the rise of higher space harmonics in three-phase and five-phase induction machines. The results of the analysis show that there is a group of harmonics which are associated with symmetrical components of phase currents. In five-phase machines, the spectrum of higher harmonics assigned to the component which generates the operating torque is shifted to higher orders. Due to this fact, the five-phase machines have several advantages compared with the three-phase machines. These advantages are apparent mainly in a steady-state operation at symmetrical feeding. The five-phase machines have, however, also improved properties in transient and fault states. This fact is shown at the example of operation of three-phase and five-phase machines after the two-phase short circuit at the terminals of two neighbouring phase stator windings. In this case, the five-phase machine can, for a short time, operate with a rated load, while a three-phase machine is not able to generate sufficient torque and the rotor speed rapidly decreases to the standstill.

Słowa kluczowe

EN

electric machine; induction motor; induction machine

PL

silnik indukcyjny; maszyna indukcyjna; maszyna elektryczna

• Wydawca: Sieć Badawcza Łukasiewicz - Górnośląski Instytut Technologiczny
• Czasopismo: Maszyny Elektryczne : zeszyty problemowe
• Rocznik: 2010
• Tom: Nr 88
• Strony: 169--174
• Opis fizyczny: Bibliogr. 8 poz., rys., tab.

Twórcy

autor

Schreier L.

autor

Bendl J.

autor

Chomat M.

• Institute of Thermomechanics, AS CR, v.v.i., Department of Electric Machines, Drives, and Power Electronics, Dolejškova 5, 182 00 Praha 8, Czech Republic,

Bibliografia

• [1] Zhao Y., Lipo T. A.: Modelling and Control of a Multi-Phase Induction Machine with Structural Unbalance, Part I. IEEE Transaction on Energy Conversion Vol. 11, No. 3, 1996, pp. 570 – 577.
• [2] Zhao Y., Lipo T. A.: Modelling and Control of a Multi-Phase Induction Machine with Structural Unbalance Part II. IEEE Transaction on Energy Conversion, Vol. 11, No. 3, 1996, pp. 578 – 584.
• [3] Zaskalicky P., Zaskalicka M.: Complex Fourier Series Mathematical Model of the Penta Phase Inverter. Low Voltage Electrical Machines Int. Conf., Brno, 2009, pp. 9 – 12.
• [4] Štěpina J.: Symmetrical Components in the Theory of Rotating Electrical Machines (in Czech). Prague: Academia 1969
• [5] Schreier L.: Zero Sequence Component in Stator Currents of Induction Machines, Acta Technica CSAV, Vol. 47, 2002, pp. 199-138.
• [6] Kluszczyński K., Miksiewicz R.: Synchronous parasitic torques in asymmetrically-fed 3-phase squirrel-cage motor, Electrical Machines and Power Systems, Vol.24, No 1, 1996, pp. 9-20.
• [7] Schreier L., Bendl J., Chomat M.: Influence of Spatial Harmonics on Properties of Five-Phase Induction Machines. Proc. of the Power Electronics and Electrical Drives Int. Conf. EDPE 2009, Dubrovnik 2009, CD ROM.
• [8] Sobczyk T., Weinreb K.: Steady-state equations of multiphase squirrel-cage inductions motors, ICEM'86, Munchen, 1986, part 2, pp (393-396).