Distinguishing Between Natural and Forced Oscillations Using a Cross-Spectrum Index

被引:0
|
作者
Xie, Ruichao [1 ]
Trudnowski, Daniel J. [1 ]
机构
[1] Montana Tech Univ, Butte, MT 59701 USA
关键词
Electromechanical oscillations; forced oscillations; spectral analysis;
D O I
暂无
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Two different types of oscillatory responses often occur in power systems: natural and forced. Natural oscillations are characterized by the electromechanical eigenvalues (or modes) and are typically initiated by a system discontinuity (e.g., a fault). Forced oscillations are caused by some external input driving the system into a sustained oscillation. A fundamental goal is to distinguish between a very lightly-damped (or undamped) natural oscillation and a forced oscillation based upon system-wide measurements. In this paper, a cross-spectrum index function is developed for distinguishing between the two types of oscillations based upon time-synchronized PMU measurements. A simulation and a real-life event are used to demonstrate key points.
引用
收藏
页数:5
相关论文
共 50 条
  • [31] Distinguishing between physiological and essential tremor using discriminant and cluster analyses of parameters derived from the frequency spectrum
    Wharrad, HJ
    Jefferson, D
    HUMAN MOVEMENT SCIENCE, 2000, 19 (03) : 319 - 339
  • [32] Distinguishing between Natural and Hatchery Snake River Fall Chinook Salmon Subyearlings in the Field Using Body Morphology
    Tiffan, Kenneth F.
    Connor, William P.
    TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY, 2011, 140 (01) : 21 - 30
  • [33] A new statistical test based on the wavelet cross-spectrum to detect time-frequency dependence between non-stationary signals: Application to the analysis of cortico-muscular interactions
    Bigot, Jeremie
    Longcamp, Marieke
    Dal Maso, Fabien
    Amarantini, David
    NEUROIMAGE, 2011, 55 (04) : 1504 - 1518
  • [34] Correlation between cardiometabolic index and psoriasis: a cross-sectional analysis using NHANES data
    Li, Mengxue
    Gan, Yixiao
    Cheng, Hong
    Wang, Zhicheng
    FRONTIERS IN PHYSIOLOGY, 2025, 16
  • [35] Sparseness of Natural Oscillations Spectrum for Double-Mirror Open Resonator Using Mode-Selective Scatterers on One of Mirrors Surface
    Pazynin V.L.
    Radioelectronics and Communications Systems, 2021, 64 (10) : 525 - 534
  • [36] Distinguishing between autism spectrum disorder and attention deficit hyperactivity disorder by using behavioral checklists, cognitive assessments, and neuropsychological test battery
    Matsuura, Naomi
    Ishitobi, Makoto
    Arai, Sumiyoshi
    Kawamura, Kaori
    Asano, Mizuki
    Inohara, Keisuke
    Narimoto, Tadamasa
    Wada, Yuji
    Hiratani, Michio
    Kosaka, Hirotaka
    ASIAN JOURNAL OF PSYCHIATRY, 2014, 12 : 50 - 57
  • [37] Distinguishing between the interior pressures induced by independent sources within a room using the probabilistic approach and model class selection index: An experiment
    Lee, Y. Y.
    Lam, H. F.
    Sun, H. Y.
    JOURNAL OF SOUND AND VIBRATION, 2008, 317 (3-5) : 646 - 656
  • [38] Distinguishing between tectonic and lithologic controls on bedrock channel longitudinal profleiles using cosmogenic 10Be erosion rates and channel steepness index
    Cyr, Andrew J.
    Granger, Darryl E.
    Olivetti, Valerio
    Molin, Paola
    GEOMORPHOLOGY, 2014, 209 : 27 - 38
  • [39] Evaluating malocclusion patterns in children with autism spectrum disorder using the index of complexity, outcome and need: a cross-sectional study
    Farzanegan, Fahimeh
    Shadmehri, Sahar Ahmadi
    Shooshtari, Zahra
    Hamidi, Amir Reza
    Shahri, Arsalan
    BMC ORAL HEALTH, 2024, 24 (01):
  • [40] Cross-Talk between Mucosal-Associated Invariant T, Natural Killer, and Natural Killer T Cell Populations is Implicated in the Pathogenesis of Placenta Accreta Spectrum
    El-Badawy, Omnia
    Abbas, Ahmed M.
    Radwan, Eman
    Makboul, Rania
    Khamis, Areej A.
    Ali, Maha
    Elkabsh, Mai M.
    Bakr, Marwa H.
    Zahran, Asmaa M.
    INFLAMMATION, 2023, 46 (04) : 1192 - 1208