High Power Factor Operation of a Three-Phase Rectifier for an Adjustable-Speed Drive

Author

Suryawanshi, Hiralal M. ; Kulwal, Abhishek K. ; Chaudhari, Madhuri A. ; Borghate, Vijay B.

Author_Institution

Visvesvaraya Nat. Inst. of Technol., Nagpur

Volume

55

Issue

4

fYear

2008

fDate

4/1/2008 12:00:00 AM

Firstpage

1637

Lastpage

1646

Abstract

This paper presents a novel approach to improve the power factor (PF) and reduce the harmonics generated by an adjustable-speed drive (ASD). A high-frequency (HF) current injection technique is used to improve the PF and harmonic performance. The HF current at the same switching frequency (33 kHz) is injected into the input of a front-end rectifier from the output of an HF inverter. The main feature of the circuit is that it does not require any additional active devices for current injection. The inverter driving the induction motor is operated using a sinusoidal pulsewidth-modulation technique. The circuit simulation and experimental prototype results are presented for 67-hp (50 kW) and 3-hp three-phase induction motors, respectively.

Keywords

PWM invertors; PWM rectifiers; harmonic distortion; induction motor drives; power factor; variable speed drives; HF inverter; adjustable-speed drive; circuit simulation; frequency 33 kHz; front-end rectifier; high power factor operation; high-frequency current injection technique; power 50 kW; sinusoidal pulsewidth-modulation technique; three-phase induction motors; three-phase rectifier; Adjustable speed drive; Adjustable-speed drive (ASD); harmonic distortion; high frequency current injection; high-frequency (HF) current injection; power factor; power factor (PF);

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/TIE.2008.917110

Filename

4438693