A novel overmodulation technique for space vector PWM inverters

Author

Lee, Dong-Choon ; Lee, G-Myoung

Author_Institution

Sch. of Electr. & Electron. Eng., Yeungnam Univ., Kyungbuk, South Korea

Volume

2

fYear

1997

fDate

22-27 Jun 1997

Firstpage

1014

Abstract

In this paper, a novel overmodulation technique for space-vector PWM inverters is proposed. The strategy, which is based on Fourier series expansion of the reference voltage and which is easy to understand graphically, can achieve maximum utilization of the DC bus voltage. When the method is applied to the V/f control of an induction motor, smooth operation during transition from the linear control range to the six-step mode is shown through both simulation and experimental results

Keywords

DC-AC power convertors; Fourier series; PWM invertors; bipolar transistor switches; harmonic distortion; insulated gate bipolar transistors; power bipolar transistors; power semiconductor switches; power system harmonics; switching circuits; DC bus voltage; Fourier series expansion; IGBT PWM invertor; V/f control; induction motor; linear control range; overmodulation technique; reference voltage; six-step mode operation; space vector PWM inverters; Circuit simulation; Fourier series; Frequency conversion; Induction motors; Power conversion; Pulse width modulation inverters; Snubbers; Space vector pulse width modulation; Switching circuits; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1997. PESC '97 Record., 28th Annual IEEE

Conference_Location

St. Louis, MO

ISSN

0275-9306

Print_ISBN

0-7803-3840-5

Type

conf

DOI

10.1109/PESC.1997.616858

Filename

616858