TY - JOUR
T1 - Non-linear dynamics based sub-synchronous resonance index by using power system measurement data
AU - Cho, Hwanhee
AU - Oh, Seungchan
AU - Nam, Suchul
AU - Lee, Byongjun
N1 - Publisher Copyright:
© The Institution of Engineering and Technology 2018.
Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2018/9/30
Y1 - 2018/9/30
N2 - This study proposes a time-series analysis approach and a non-linear dynamics originated method to detect subsynchronous oscillation in power systems. Mathematical expressions of the fundamental instantaneous signal and sample discrete signal of peak values are derived to examine the phenomenon of interaction between power system components. The results of the circulating trajectory are shown in a two-dimensional map of the calculated root-mean-square value and estimated Floquet multiplier when two signals of different modes are mixed. Without applying a digital filter or frequency decomposition, non-linear oscillation detection is possible by monitoring a non-linear oscillatory index based on the maximum Lyapunov exponent.
AB - This study proposes a time-series analysis approach and a non-linear dynamics originated method to detect subsynchronous oscillation in power systems. Mathematical expressions of the fundamental instantaneous signal and sample discrete signal of peak values are derived to examine the phenomenon of interaction between power system components. The results of the circulating trajectory are shown in a two-dimensional map of the calculated root-mean-square value and estimated Floquet multiplier when two signals of different modes are mixed. Without applying a digital filter or frequency decomposition, non-linear oscillation detection is possible by monitoring a non-linear oscillatory index based on the maximum Lyapunov exponent.
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U2 - 10.1049/iet-gtd.2018.5414
DO - 10.1049/iet-gtd.2018.5414
M3 - Article
AN - SCOPUS:85053622764
VL - 12
SP - 4026
EP - 4033
JO - IET Generation, Transmission and Distribution
JF - IET Generation, Transmission and Distribution
SN - 1751-8687
IS - 17
ER -