Energetic behavior of soft magnetic materials fed by inverter supply

Author

Boglietti, A. ; Ferraris, P. ; Lazzari, M. ; Profumo, F.

Author_Institution

Dipartimento di Ingegneria Elettrica Ind., Politecnico di Torino, Italy

fYear

1992

fDate

4-9 Oct 1992

Firstpage

54

Abstract

The energetic behavior of several samples of soft magnetic materials excited by inverter voltage supplies has been analyzed. The iron losses increasing due to nonconventional voltage supply such as inverter-fed induction motors have been considered. Square wave and pulse-width-modulated (PWM) inverter voltages have been selected as the excitation waveforms for the samples under test. Extensive experimental results on medium- and high-quality grain oriented silicon steel and amorphous alloy wound cores are presented. A detailed description of the testing procedure is also reported. The results allow one to estimate the percentage of the iron losses increasing the nonsinusoidal supply. Comparison with the results obtained with sinusoidal supply gives useful indications to electromagnetic device designers about the derating factor to be used in devices fed by static power sources

Keywords

induction motors; invertors; machine testing; magnetic materials; pulse width modulation; FeSi; PWM; amorphous magnetic materials; derating factor; electromagnetic device; energetic behavior; excitation waveforms; induction motors; inverter; iron losses; nonconventional voltage supply; silicon steel; soft magnetic materials; square waves; testing; wound cores; Induction motors; Iron; Magnetic analysis; Pulse inverters; Pulse width modulation inverters; Silicon; Soft magnetic materials; Steel; Testing; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting, 1992., Conference Record of the 1992 IEEE

Conference_Location

Houston, TX

Print_ISBN

0-7803-0635-X

Type

conf

DOI

10.1109/IAS.1992.244465

Filename

244465