Real-time dynamic control of dynamic power filters in supplies with high contamination

Author

Van Harmelen, Gerard Leonardus ; Enslin, Johan H R

Author_Institution

Dept. of Electr. Eng., Pretoria Univ., South Africa

Volume

8

Issue

3

fYear

1993

fDate

7/1/1993 12:00:00 AM

Firstpage

301

Lastpage

308

Abstract

A real-time closed-loop system for controlling dynamic power filters under rapidly varying nonlinear loading conditions is tested and evaluated. With the aid of a dedicated microprocessor system, using correlation algorithms, real-time reference signals for a dynamic compensation system are generated. In order to facilitate a cost effective compensation system, separate compensation of the fundamental reactive power component and the harmonic components is further investigated. A total algorithm time of 312 μs for a 50 Hz system is achieved, providing accurate compensation effort up to the 21st power system harmonic

Keywords

closed loop systems; compensation; filters; microcomputer applications; power supplies to apparatus; power system computer control; power system harmonics; reactive power; 21st power system harmonic; 312 mus; 50 Hz; correlation algorithms; dedicated microprocessor system; dynamic compensation system; dynamic control; dynamic power filters; fundamental reactive power component; harmonic components; rapidly varying nonlinear loading; real-time closed-loop system; real-time reference signals; Control systems; Microprocessors; Nonlinear control systems; Nonlinear dynamical systems; Power filters; Power supplies; Power system harmonics; Real time systems; Signal generators; System testing;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/63.233287

Filename

233287