Voltage modulation factor of the magnetic flux control PWM method for inverter

Author

Morimoto, Masayuki ; Sato, Shinji ; Sumito, Kiyotaka ; Oshitani, Katsumi

Author_Institution

Mitsubishi Heavy Ind. Ltd., Yokohama, Japan

Volume

38

Issue

1

fYear

1991

fDate

2/1/1991 12:00:00 AM

Firstpage

57

Lastpage

61

Abstract

The voltage modulation factor of the magnetic flux control pulse-width modulation (PWM) method is discussed. The modulation factor is derived from a theoretical study on the flux locus produced from the inverter output voltage. The derivation is based on the fact that the fundamental component of the inverter output voltage is proportional to the radius of the flux locus. It is shown theoretically that the voltage modulation factor is expressed by the content of a zero vector in one cycle of the selected PWM pattern of the space vector expression. The modulation factor of the magnetic flux control PWM method is calculated. The modulation factor can be varied from zero to 12/π². The output voltage of the magnetic flux control PWM method can be controlled by the modulation factor linearly from zero up to overmodulation. The simulation and experimental results are also shown

Keywords

invertors; magnetic flux; magnetic variables control; pulse width modulation; flux locus; inverter; inverter output voltage; magnetic flux control PWM method; pulse-width modulation; space vector expression; voltage modulation factor; Amplitude modulation; Electrical equipment industry; Induction motors; Magnetic flux; Magnetic modulators; Magnetic variables control; Pulse width modulation; Pulse width modulation inverters; Space vector pulse width modulation; Voltage control;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/41.103485

Filename

103485