Technical gazette, Vol. 27 No. 2, 2020.
Original scientific paper
https://doi.org/10.17559/TV-20191217235337
Synchronized Measurements Processing Methodology as a Tool for Monitoring Power System Oscillations
Srđan Skok
; Department of Electrical Engineering, University North, 104. Brigade 3, 42000 Varaždin, Croatia
Dunja Srpak
orcid.org/0000-0003-1497-9080
; Department of Electrical Engineering, University North, 104. Brigade 3, 42000 Varaždin, Croatia
Ladislav Havaš
orcid.org/0000-0002-5051-4486
; Department of Electrical Engineering, University North, 104. Brigade 3, 42000 Varaždin, Croatia
Veljko Kondić
; Department of Mechanical Engineering, University North, J. Križanića 31b, 42000 Varaždin, Croatia
Abstract
Monitoring, protection and control of the electrical power system require the design and implementation of specific applications that are based on analytical methods for the processing of synchronized measurements. Therefore, it is necessary to select the adequate type of mathematical analysis that best suits the requirements of a particular application. This paper describes analytical methods used for the processing of synchronized measured electrical quantities for detection and analysis of the variety of oscillations. The oscillatory phenomena of active power and frequency as a case study of one disturbance in the power system are analyzed. The results of processing the actual synchronized measurements for that case study are presented afterwards. Different data processing methods (spectral analysis methods) are compared, and finally, a recommendation for appropriate methods for processing synchronized measurements in application for recognition, processing and alarming of oscillations of active power is given.
Keywords
Fast Fourier Transformation; Phasor Measurement Units; Power System Oscillations; Prony analysis; Synchronized Measurement
Hrčak ID:
236794
URI
Publication date:
15.4.2020.
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