Adaptive, closed-loop control of dynamic power filters as fictitious power compensators

Author

Enslin, Johan H R ; Van Wyk, Jacobus D. ; Naudé, Meyer

Author_Institution

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

Volume

37

Issue

3

fYear

1990

fDate

6/1/1990 12:00:00 AM

Firstpage

203

Lastpage

211

Abstract

A new control philosophy, utilizing both thyristor-controlled reactive (TCR) sources and dynamic power filters (DPFs) has been proposed by J.H.R. Enslin and J.D. Van Wyk (IEEE Trans. Power Electron., vol.5, no.1, 1990) in the application of fictitious power compensation. This study shows the closed-loop control of a DPF using an adaptive signal processing algorithm based on the cross-correlation between the voltage and current waveforms. The control strategy is based on the derivation of equivalent network parameters, which are calculated from digital time domain cross-correlation signal processing techniques and implemented with the aid of a microcomputer. Practical results under quasidynamic operating conditions obtained from a 15 kVA three-phase dynamic power filter are given

Keywords

adaptive control; closed loop systems; filters; power convertors; 15 kVA; DPF; adaptive signal processing algorithm; closed-loop control; current waveforms; dynamic power filters; equivalent network parameters; fictitious power compensation; voltage waveforms; Active filters; Adaptive control; Adaptive signal processing; Contamination; Power filters; Power supplies; Power system dynamics; Programmable control; Reactive power; Voltage;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/41.55159

Filename

55159