DC drive for universal motor

• Autorzy: Kaňuch J. , Višnyi P.
• Języki publikacji: EN

Abstrakty

EN

Universal motors are usually operated in AC mode and are controlled by means of triacs. This conventional solution is characterized by a cheap control hardware. On the other hand, it has some drawbacks. In particular the high peak to peak current gives poor motor efficiency and the consequential high brush temperature leads to limited motor lifetime. Significant improvements are obtained when using a more exacting converter. This paper presents the results obtained by using a diode rectifier and PWM controlled IGBT chopper. The RMS and peak-to-peak current of the motor are reduced, as well as electric losses and brush temperature. In addition, this operation mode enables increasing the motor output power or the motor lifetime. In order to reduce switching losses and electromagnetic interference of the converter, the assumed switching frequency is not higher than 1000 Hz.

Słowa kluczowe

EN

DC drive; universal motor

PL

napęd prądu stałego; silnik uniwersalny

• Wydawca: Sieć Badawcza Łukasiewicz - Górnośląski Instytut Technologiczny
• Czasopismo: Maszyny Elektryczne : zeszyty problemowe
• Rocznik: 2009
• Tom: Nr 84
• Strony: 7--11
• Opis fizyczny: Bibliogr. 8 poz., rys.

Twórcy

autor

Kaňuch J.

autor

Višnyi P.

• Department of Electrical, Mechatronic and Industrial Engineering, Faculty of Electrical Engineering and Informatics Technical University of Košice, Letná 9, 042 00 Košice, Slovak Republic,

Bibliografia

• [1] Ferkova Ž., Fedor J., Dupej J.: Influence of magnetic field distribution on commutation of one phase commutator motor, Elektrotechnik in praxis, No. 1-2, pp. 44-45, 2004, Ostrava, Czech Republic, (in Slovak)
• [2] Záskalická M.: Applications of the Fourier series by the Solution some Problems of Power Electronic; SEKEL 2004, International Conference of the Teachers of Electrical Engineering, 22-24 september 2004, Písek u Jablúnkova, pp. 40-43, Technical University Ostrava, 2004, Czech Republik (in Slovak)
• [3] J. Michalík, M. Šimko, M. Šebök, M. Chupáč: Diagnostics of electric machines, Electro’97 Conference, 23.- 24.6.1997, pp. 101-104 , University of Žilina, Slovakia
• [4] Hrabovcová V., Rafajdus P., Franko M.: Measuring and modeling of the electrical machines; University of Žilina press, 2004, Slovakia. (in Slovak)
• [5] Fitzgerald A.E., Kingsley Ch., Umans S.D.: Electric machinery; McGraw-Hill Higher Education, New York 2003
• [6] Sen P.C.: Principles of Electric Machines and Power Electronics; John Wiley&Sons, USA, Canada 1997
• [7] Záskalický P., Záskalická M.: Torque ripple calculation of an universal motor supplied by a triac converter; Acta Technica CSAV No: 52 (2007), 33-43, Prague, Czech Republic
• [8] Židek, K. Maxim,V., Lupták. M.: Simple Semiconductor Switch in Zero of AC Voltage with Minimum Electromarnetic Influence (EMC) on Power Suply Network, MTM – Machines, Technologies, Materials, No. 1/2008, Publ. by Scientific-Technical Union of Mechanical Engineering, Bulgaria, pp. 6-9, ISSN 1313-0226