Unipolarny układ zasilania silników reluktancyjnych

• Autorzy: Tomczewski K.

Warianty tytułu

EN

Unipolar supply system for reluctance motors

• Języki publikacji: PL

Abstrakty

PL

W artykule przedstawiono unipolarny układ zasilania umożliwiający rozszerzenie zakresu prędkości silników reluktancyjnych. Badano wpływ zastosowania nowego układu na uzyskiwane wartości prądów w czasie zasilania cewek, oraz na czas zaniku prądu po wyłączeniu zasilania. Obliczenia wykonano dla izolowanych magnetycznie obwodów o stałych parametrach oraz dla czteropasmowego silnika krokowego. Wyniki obliczeń porównano z uzyskanymi przy stosowaniu typowych układów zasilania. Pokazano możliwość znacznej poprawy warunków zasilania silnika w górnym zakresie prędkości.

EN

The paper presents the influence of a modified supply system on current waveforms in inductive-resistive loads. Modification of a supply system dedicated for reluctance stepper and switched reluctance motor based drives was investigated. The modification influence on current values obtained during the step as well as current fall-off time after switching off the power was examined. Two configurations of the system were investigated: a system with common additional section (Fig. 8) and a system with independent supply sections (Fig. 15). Both influence the motor torque significantly. Calculations were carried out for constant-inductance, magnetically isolated circuits and a four-phase stepper motor. The current waveforms obtained from various systems for the same load and transistor keying frequency are presented. The possible significant improvement in power conditions at high-speed range is described in the paper. Application of the system shown in Fig. 8 results in the start up frequency higher by 65%. The best results were obtained for the supply system with independent supply sections. The presented results come from initial investigation of the designed system.

Słowa kluczowe

PL

układ zasilania; unipolarny; silnik krokowy

EN

supply system; unipolar; stepper motor

• Wydawca: Wydawnictwo PAK
• Czasopismo: Pomiary Automatyka Kontrola
• Rocznik: 2011
• Tom: R. 57, nr 2
• Strony: 138--141
• Opis fizyczny: Bibliogr. 6 poz., rys., tab., schem.

Twórcy

autor

Tomczewski K.

• Politechnika Opolska, Instytut Układów Elektromechanicznych i Elektroniki Przemysłowej, ul. Luboszycka 7, 45-036 Opole,

Bibliografia

• [1] Ching T. W., Chau K. T., Chau C. C.: A new zero-voltage-transition converter for switched reluctance motor drives Authors. IEEE Power Electronics Specialists Conference Record, Fukuoka, Japan, 17-22 May 1998, v. 2, p. 1295-1301.
• [2] Kalamdani A. A.: A Novel Solution to Variable Speed Opera-tions of Switched Reluctance Motors. Proceedings of 13th IEEE Bangalore Section National Symposium on Power Systems held on 26-27 November 2004 at Indian Institute of Science, Bangalore, p. 1-7.
• [3] Kirshnan R.: A novel converter topology for switched reluctance motor drives improving efficiency and simplifying control strategy. Power Electronics Specialists Conference, PESC’ 94 Record., 25th Annual IEEE, vol. 2., pp. 937-942.
• [4] Le-Huy H., Viarouge P., Francoeur B.: A novel unipolar con-verter for switched reluctance motor, Power Electronics, IEEE Transactions on Magnetics, Volume 5, Issue 4, Oct. 1990 Page(s): 469-475.
• [5] Tomczewski K., Witkowski A.: LTSpice simulation of power supply system for switched reluctance motors, Computer applications in electrical engineering, ALWERS, Poznań 2006, pp. 131-143.
• [6] Vukosavic S., Stefanovic V. R.: SRM Inverter Topologies: A Comparative Evaluation, IEEE Transactions on Industry Applications, vol. 27, nr 6, str. 1034-1047, 11/12 1991.