Comparison of LCL-Filter-Based PWM Rectifier with Different Current Sensor Positions

Author

Gong, Bing ; Xu, Dewei

Author_Institution

Electr. & Comput. Eng., Ryerson Univ., Toronto, ON

fYear

2008

fDate

5-9 Oct. 2008

Firstpage

1

Lastpage

6

Abstract

For LCL-based PWM rectifier, there are two options of sensing currents. Either grid side currents or converter side currents can be selected as the feedback signals for the current control loop. The selection of sensor position makes the design of the control system different. In this paper, the control stability and dynamic performance of LCL filter-based PWM rectifier with converter side current control or with grid side current control are compared. System stability and dynamic performance are compared with taking into account the effect of all possible variants. Further more, the comparison results provide a very useful design guideline for LCL filter-based PWM rectifiers. Finally experimental results prove the theoretical analysis.

Keywords

PWM rectifiers; electric current control; power harmonic filters; stability; LCL filter; PWM rectifier; control stability; converter side currents; current control loop; current sensor positions; feedback signals; grid side current control; Active filters; Control systems; Current control; Guidelines; Pulse width modulation; Pulse width modulation converters; Rectifiers; Sensor systems; Stability; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting, 2008. IAS '08. IEEE

Conference_Location

Edmonton, Alta.

ISSN

0197-2618

Print_ISBN

978-1-4244-2278-4

Electronic_ISBN

0197-2618

Type

conf

DOI

10.1109/08IAS.2008.319

Filename

4659107