A novel system for measurement of power system parameters and signals

Author

Ghartemani, M.K. ; Iravani, M.R.

Author_Institution

Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada

Volume

1

fYear

2002

fDate

4-7 Aug. 2002

Abstract

This paper presents various applications of a nonlinear adaptive notch filter which operates based on the concept of an enhanced phase-locked loop (PLL). Applications of the filter for on-line signal analysis for power systems protection, control and power quality enhancement are presented. The proposed scheme can be applied for signal analysis both under stationary and nonstationary conditions. Based on digital time-domain simulations, applications of the filter for (a) sinusoidal waveform peak detection, (b) frequency estimation, (c) harmonic identification/detection, (d) detection/extraction of individual components of a signal, (e) disturbance detection, (f) noise reduction in zero-crossings detection, and (g) amplitude (phase) demodulation for flicker estimation, are presented.

Keywords

adaptive filters; nonlinear filters; notch filters; phase locked loops; power supply quality; power system control; power system measurement; power system protection; signal processing equipment; digital time-domain simulation; measurement system; nonlinear adaptive notch filter; on-line signal analysis; phase locked loop; power quality enhancement; power system control; power system protection; Frequency estimation; Phase detection; Phase frequency detector; Phase locked loops; Power harmonic filters; Power measurement; Power system analysis computing; Power system measurements; Power system protection; Signal analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2002. MWSCAS-2002. The 2002 45th Midwest Symposium on

Print_ISBN

0-7803-7523-8

Type

conf

DOI

10.1109/MWSCAS.2002.1187141

Filename

1187141