The main objective of this paper is to propose two innovative monitoring methods for electrical disturbances in low-voltage networks. The two approaches present a focus on the classification of voltage signals in the frequency domain using machine learning techniques. The first technique proposed here uses the Fourier transform (FT) of the voltage waveform and classifies the corresponding complex coefficients through a multilayered neural network with multivalued neurons (MLMVN). In this case, the classifier structure has three layers and a small number of neurons in the hidden layer. This allows complex-valued inputs to be processed without the need for pre-coding, thus reducing computational cost and keeping training time short. The second technique involves the use of the short-time Fourier transform (STFT) and a convolutional neural network (CNN) with 2D convolutions in each layer for feature extraction and dimensionality reduction. The voltage waveform perturbations taken into consideration are: voltage sag, voltage swell, harmonic pollution, voltage notch, and interruption. The comparison between the two proposed techniques is developed in two phases: initially, the simulated data used during the training phase are considered and, subsequently, various experimental measurements are processed, obtained both through an artificial disturbance generator and through a variable load. The two techniques represent an innovative approach to this problem and guarantee excellent classification results.

Power Quality Analysis Based on Machine Learning Methods for Low-Voltage Electrical Distribution Lines / Iturrino Garcia, Carlos Alberto; Bindi, Marco; Corti, Fabio; Luchetta, Antonio; Grasso, Francesco; Paolucci, Libero; Piccirilli, Maria Cristina; Aizenberg, Igor. - In: ENERGIES. - ISSN 1996-1073. - ELETTRONICO. - 16:(2023), pp. -.3627--.3655. [10.3390/en16093627]

Power Quality Analysis Based on Machine Learning Methods for Low-Voltage Electrical Distribution Lines

Bindi, Marco;Corti, Fabio
;
Luchetta, Antonio;Grasso, Francesco;Paolucci, Libero;Piccirilli, Maria Cristina;Aizenberg, Igor
2023

Abstract

The main objective of this paper is to propose two innovative monitoring methods for electrical disturbances in low-voltage networks. The two approaches present a focus on the classification of voltage signals in the frequency domain using machine learning techniques. The first technique proposed here uses the Fourier transform (FT) of the voltage waveform and classifies the corresponding complex coefficients through a multilayered neural network with multivalued neurons (MLMVN). In this case, the classifier structure has three layers and a small number of neurons in the hidden layer. This allows complex-valued inputs to be processed without the need for pre-coding, thus reducing computational cost and keeping training time short. The second technique involves the use of the short-time Fourier transform (STFT) and a convolutional neural network (CNN) with 2D convolutions in each layer for feature extraction and dimensionality reduction. The voltage waveform perturbations taken into consideration are: voltage sag, voltage swell, harmonic pollution, voltage notch, and interruption. The comparison between the two proposed techniques is developed in two phases: initially, the simulated data used during the training phase are considered and, subsequently, various experimental measurements are processed, obtained both through an artificial disturbance generator and through a variable load. The two techniques represent an innovative approach to this problem and guarantee excellent classification results.
2023
16
3627
3655
Iturrino Garcia, Carlos Alberto; Bindi, Marco; Corti, Fabio; Luchetta, Antonio; Grasso, Francesco; Paolucci, Libero; Piccirilli, Maria Cristina; Aizenberg, Igor
File in questo prodotto:
File Dimensione Formato  
energies-16-03627_compressed.pdf

accesso aperto

Tipologia: Pdf editoriale (Version of record)
Licenza: Open Access
Dimensione 1.11 MB
Formato Adobe PDF
1.11 MB Adobe PDF

I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/1311379
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 3
  • ???jsp.display-item.citation.isi??? 2
social impact