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Wavelet transform applications in power system dynamics
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DOI：10.1016/j.epsr.2010.11.031.png)
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This paper proposes the use of the discrete wavelet transform (DWT) to analyze and locate the low frequency oscillations of power systems, which can result in a loss of stability or in a black-out. The proposed DWT applied to active power signal is tested and compared with more conventional approaches of Prony and Eigenvalue analyses. The DWT also enables estimation of the total active power imbalance of a system. Estimation performances of different wavelet families are tested. Based on the proposed DWT of electromechanical transient oscillations, the DWT is also applied to identify the network nodes in the neighbourhood of the original disturbance. The performance of the proposed DWT is evaluated on the New England (NE) 39-bus test system. (C) 2010 Elsevier B.V. All rights reserved.
Keyword:
Power system dynamics
Wavelet transform
Wide area monitoring
Disturbance analysis
期刊
IF:
4.2
论文数:
1.2W
被引数:
2.2W
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