Publicado

2011-01-01

Entropy and coefficient of variation CV as tools to power quality assessment

Autores/as

  • Jorge Hernán Estrada Estrada Universidad Nacional de Colombia
  • Eduardo Antonio Cano Plata
  • Camilo Younes Velosa
  • claudia cortes

We´ll present in this paper several concepts and techniques to quantify electric signal  entropy and variability in order to assess power quality, showing their irregularities , such as the electrical  sine wave, which  delivers power to industry and homes..  We will review these concepts and present some magnetic radiated waves measurements taken below 115 KV electric lines circuits of the city of Manizales (Colombia) through a non invasive and indirect  measurement of the complexity of the current transported by the supply.

  Entropy, as an accepted indicator of  the complexity of  physical realities, is proportional to the logarithm of  the number of states in a thermodynamic system. Some writers identify entropy as a disorder of a system, but this is not completely true.  Entropy of the information was first defined by Shannon in 1949 , and it is applied to multiple physical events. In this context, entropy describes the complexity of  the magnetic wave radiated by the line.

Furthermore, we obtained the spectral and amplitude coefficient of variation CV of the magnetic waves with a multi resolution wavelet algorithm, which permits the measurement of dispersion of the data distribution .It is a dimensionless number that allows comparison of the variation of magnetic  radiated data ,that have significantly different mean values, against  a 60 Hz magnetic  pure wave as a reference

Cómo citar

APA

Estrada Estrada, J. H., Cano Plata, E. A., Younes Velosa, C. y cortes, claudia. (2011). Entropy and coefficient of variation CV as tools to power quality assessment. Simposio Internacional sobre la Calidad de la Energía Eléctrica - SICEL, 6. https://revistas.unal.edu.co/index.php/SICEL/article/view/22984

ACM

[1]
Estrada Estrada, J.H., Cano Plata, E.A., Younes Velosa, C. y cortes, claudia 2011. Entropy and coefficient of variation CV as tools to power quality assessment. Simposio Internacional sobre la Calidad de la Energía Eléctrica - SICEL. 6, (ene. 2011).

ACS

(1)
Estrada Estrada, J. H.; Cano Plata, E. A.; Younes Velosa, C.; cortes, claudia. Entropy and coefficient of variation CV as tools to power quality assessment. SICEL 2011, 6.

ABNT

ESTRADA ESTRADA, J. H.; CANO PLATA, E. A.; YOUNES VELOSA, C.; CORTES, claudia. Entropy and coefficient of variation CV as tools to power quality assessment. Simposio Internacional sobre la Calidad de la Energía Eléctrica - SICEL, [S. l.], v. 6, 2011. Disponível em: https://revistas.unal.edu.co/index.php/SICEL/article/view/22984. Acesso em: 16 feb. 2025.

Chicago

Estrada Estrada, Jorge Hernán, Eduardo Antonio Cano Plata, Camilo Younes Velosa, y claudia cortes. 2011. «Entropy and coefficient of variation CV as tools to power quality assessment». Simposio Internacional Sobre La Calidad De La Energía Eléctrica - SICEL 6 (enero). https://revistas.unal.edu.co/index.php/SICEL/article/view/22984.

Harvard

Estrada Estrada, J. H., Cano Plata, E. A., Younes Velosa, C. y cortes, claudia (2011) «Entropy and coefficient of variation CV as tools to power quality assessment», Simposio Internacional sobre la Calidad de la Energía Eléctrica - SICEL, 6. Disponible en: https://revistas.unal.edu.co/index.php/SICEL/article/view/22984 (Accedido: 16 febrero 2025).

IEEE

[1]
J. H. Estrada Estrada, E. A. Cano Plata, C. Younes Velosa, y claudia cortes, «Entropy and coefficient of variation CV as tools to power quality assessment», SICEL, vol. 6, ene. 2011.

MLA

Estrada Estrada, J. H., E. A. Cano Plata, C. Younes Velosa, y claudia cortes. «Entropy and coefficient of variation CV as tools to power quality assessment». Simposio Internacional sobre la Calidad de la Energía Eléctrica - SICEL, vol. 6, enero de 2011, https://revistas.unal.edu.co/index.php/SICEL/article/view/22984.

Turabian

Estrada Estrada, Jorge Hernán, Eduardo Antonio Cano Plata, Camilo Younes Velosa, y claudia cortes. «Entropy and coefficient of variation CV as tools to power quality assessment». Simposio Internacional sobre la Calidad de la Energía Eléctrica - SICEL 6 (enero 1, 2011). Accedido febrero 16, 2025. https://revistas.unal.edu.co/index.php/SICEL/article/view/22984.

Vancouver

1.
Estrada Estrada JH, Cano Plata EA, Younes Velosa C, cortes claudia. Entropy and coefficient of variation CV as tools to power quality assessment. SICEL [Internet]. 1 de enero de 2011 [citado 16 de febrero de 2025];6. Disponible en: https://revistas.unal.edu.co/index.php/SICEL/article/view/22984

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