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Electrical transient modeling for appliance characterization

Abstract : Abstract Transient signals are characteristic of the underlying phenomenon generating them, which makes their analysis useful in many fields. Transients occur as a sudden change between two steady state regimes, subsist for a short period, and tend to decay over time. Hence, superimposed damped sinusoids (SDS) were extensively used for transients modeling as they are adequate for describing decaying phenomena. However, SDS are not adapted for modeling the turn-on transient current of electrical appliances as it tends to decay to a steady state that is different from the one preceding it. In this paper, we propose a new and more suitable model for these signals for the purpose of characterizing appliances. We also propose an algorithm for the model parameter estimation and validate its performance on simulated and real data. Moreover, we give an example on the use of the model parameters as features for the classification of appliances using the Controlled On/Off Loads Library (COOLL) dataset. The results show that the proposed algorithm is efficient and that for real data the network fundamental frequency must be estimated to account for its variations around the nominal value. Finally, real data experiments showed that the model parameters used as features yielded a classification accuracy of 98%.
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https://hal-univ-orleans.archives-ouvertes.fr/hal-03520115
Contributor : Philippe Ravier Connect in order to contact the contributor
Submitted on : Monday, January 10, 2022 - 7:01:04 PM
Last modification on : Tuesday, January 11, 2022 - 3:27:06 AM

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Mohamed Nait-Meziane, Philippe Ravier, Karim Abed-Meraim, Guy Lamarque, Jean-Charles Le Bunetel, et al.. Electrical transient modeling for appliance characterization. EURASIP Journal on Advances in Signal Processing, SpringerOpen, 2019, 2019 (1), pp.55. ⟨10.1186/s13634-019-0644-2⟩. ⟨hal-03520115⟩

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