Analysis of current sensorless AC-DC converter

Author

Kurokawa, Fujio ; Matsunaga, Motoshi ; Yoshimura, Kazuki

Author_Institution

Nagasaki Univ., Nagasaki, Japan

fYear

2014

fDate

19-22 Oct. 2014

Firstpage

668

Lastpage

673

Abstract

The purpose of this paper is to present a influences of parameter deviations on operation of a novel current sensorless AC-DC converter are discussed. The off time is calculated based on the equations of each operating state for boundary current control mode. The relationship among the THD, power factor and efficiency, and circuit parameter errors are discussed. When the circuit parameter varies from designed parameters, the predicted off-time can also be deviated from the optimum value. The characteristics of sensorless ac-dc converter won´t change a lot when an error occurs between the main circuit and the designed parameters of the inductor.

Keywords

AC-DC power convertors; electric current control; error analysis; harmonic distortion; power factor; THD; boundary current control mode; circuit parameter error; current sensorless AC-DC converter; inductor parameter; parameter deviation; power factor; total harmonic distortion; Equations; Inductors; Mathematical model; Reactive power; Renewable energy sources; Resistance; Switches; AC-DC; THD; boost converter; boundary current mode; efficiency; power factor;

fLanguage

English

Publisher

ieee

Conference_Titel

Renewable Energy Research and Application (ICRERA), 2014 International Conference on

Conference_Location

Milwaukee, WI

Type

conf

DOI

10.1109/ICRERA.2014.7016470

Filename

7016470