Control method for a combined active filter system employing a current source converter and a high pass filter

Author

Fukuda, Shoji ; Endoh, Takayoshi

Author_Institution

Hokkaido Univ., Sapporo, Japan

fYear

1993

fDate

19-21 April 1993

Firstpage

621

Lastpage

628

Abstract

This paper describes a control method with a combined filter system which senses load current, source current and line voltage to create reference signals for an active filter. The transfer function of the active filter is identified and is used for the control system design. It is shown that the source current feedback is most effective to suppress the harmonic-enlarging effects due to parallel resonance and the harmonic current generated by source harmonic voltages. A small setup controlled by a DSP was built, and the validity of the proposed method was demonstrated by experimental results.<>

Keywords

active filters; control system synthesis; digital control; digital signal processing chips; feedback; harmonics; high-pass filters; power convertors; transfer functions; voltage control; DSP; active filter; control system design; current source power convertors; digital control; feedback; harmonic current; harmonic voltages; high pass filter; parallel resonance; reference signals; transfer function; voltage control; Active filters; Control systems; Digital signal processing; Feedback; Power harmonic filters; Power system harmonics; Reactive power; Resonance; Transfer functions; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Conversion Conference, 1993. Yokohama 1993., Conference Record of the

Conference_Location

Yokohama, Japan

Print_ISBN

0-7803-0471-3

Type

conf

DOI

10.1109/PCCON.1993.264184

Filename

264184