A PWM strategy for reducing torque-ripple in inverter-fed induction motor

Author

Taniguchi, Katsunori ; Tomiyama, Yoji ; Takeda, Yoji ; Morimoto, Sigeo ; Sanada, Masayuki

Author_Institution

Osaka Inst. of Technol., Japan

fYear

1992

fDate

4-9 Oct 1992

Firstpage

503

Abstract

A novel pulse-width modulation (PWM) strategy suitable for an inverter-fed induction motor is described. The torque ripple of the induction motor can be reduced by this PWM technique. The output waveforms is the proposed PWM inverter are investigated both theoretically and experimentally. A modulating signal for the three-phase PWM inverter is obtained by superposing a rectangular wave on the specific trapezoidal wave whose flat portion is 120°. By using the proposed modulating signal, the amplitude of the fundamental component is about 18% more than that of a conventional sine-wave inverter

Keywords

induction motors; invertors; machine testing; machine theory; pulse width modulation; torque; PWM; induction motor; inverter; machine testing; machine theory; output waveforms; rectangular wave; three-phase; torque ripple; trapezoidal wave; Amplitude modulation; Frequency; Induction generators; Induction motors; Motor drives; Pulse width modulation; Pulse width modulation inverters; Rotors; Torque; 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.1992.244354

Filename

244354