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Main Author:	Neil A. Ortiz-Silva
Format:	Artículo científico
Language:	en
Published:	Universidad Nacional de Colombia 2015
Subjects:	Ingeniería current descriptors expulsion fuse limitin g fuse Electromagnetic disturbances
Online Access:	https://www.redalyc.org/articulo.oa?id=49640676020
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A new method to characterize power quality disturbances resulting from expulsion and current-limiting fuse operation Neil A. Ortiz-Silva Jairo Blanco-Solano Johann F. Petit-Suárez Gabriel Ordóñez-Plata Víctor Barrera-Núñez Ingeniería current descriptors expulsion fuse limitin g fuse Electromagnetic disturbances This paper presents a new method for the characterization and d iagnosis of electrical disturbanc es caused by fuses operation i n the electrical distribution systems. A set of descriptors is proposed in order to quantify the typical features of the distortions caused by operation of expulsion and current limiting fuses. A multivariate statistica l analysis is performed to select the descriptors with the best profiles qualifiers and the optimal decision t hresholds are selected to classify the disturbances using machine learning algorithms. Voltage and current signals of the fuses operation are obtained from the ATP-EMTP simulatio n, as well as some real signals, to be all used in the validati on of the new proposed algorithm, obtaining optim al performance and efficienc y results. The algorithm was i mplemented in Matlab and the computational requirements are minimal. 2015 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49640676020 en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.192 Vol.82

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// Anecdotal testing Today and Yesterday seems to indicate destroy() // is called by the garbage collector and everything is good. // Something to keep in mind though. return 0; } /** * Write function that is called when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ public function write($sessId, $data): bool { if ($this->writesDisabled) { return true; } return $this->saveSession($sessId, $data); } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ abstract protected function saveSession($sessId, $data): bool; }

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