A novel reference compensation current strategy for three-phase three-level unity PF rectifier

Author

Zhang, Shaoru ; Luo, Fang Lin

Author_Institution

Sch. of EEE, Nanyang Technol. Univ., Singapore, Singapore

fYear

2009

fDate

25-27 May 2009

Firstpage

178

Lastpage

183

Abstract

The three-phase three-level unity PF rectifier can be used to improve the power factor of a three-phase rectifier. However, its ldquocritical input inductorrdquo is calculated for the nominal load condition, both the power factor and total harmonic distortion are degraded in low-output power region. A novel strategy implementing reference compensation current is proposed based on the operation principle of this rectifier. This strategy can realize three-phase three-level unity PF rectifier. With the proposed control algorithm, the converter draws high-quality sinusoidal supply currents and maintains good dc-link-voltage regulation under wide load variation. Theoretical analysis is verified by digital simulation.

Keywords

harmonic distortion; power factor; rectifiers; voltage control; dc-link-voltage regulation; digital simulation; three-phase three-level unity PF rectifier; total harmonic distortion; unity power factor; Circuits; Current control; Diodes; Inductors; Load management; Reactive power; Rectifiers; Switches; Total harmonic distortion; Voltage control; Reference Compensation Current; Three-Phase Three-Level Rectifier; Total Harmonic Distortion; Unity Power Factor;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics and Applications, 2009. ICIEA 2009. 4th IEEE Conference on

Conference_Location

Xi´an

Print_ISBN

978-1-4244-2799-4

Electronic_ISBN

978-1-4244-2800-7

Type

conf

DOI

10.1109/ICIEA.2009.5138192

Filename

5138192