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Your search keyword '"Rodolfo Araneo"' showing total 3 results
Start Over Author "Rodolfo Araneo" Journal ieee transactions on power delivery
3 results on '"Rodolfo Araneo"'

1. On the Role of Shield Wires in Mitigating Lightning-Induced Overvoltages in Overhead Lines - Part II: Simulation Results for Practical Configurations

Author

Amedeo Andreotti, Rodolfo Araneo, J. Brandao Faria, Jinliang He, Emanuel Petrache, Antonio Pierno, Erika Stracqualursi, Andreotti, Amedeo, Araneo, Rodolfo, Faria, J. Brandao, He, Jinliang, Petrache, Emanuel, Pierno, Antonio, and Stracqualursi, Erika

Subjects
lightning-induced voltages, shielding factor, surges, codes, grounding, lightning, load flow analysis, shield wires, time-domain analysis, wires, Energy Engineering and Power Technology, Electrical and Electronic Engineering
Published
2023

2. Utilization of Underbuilt Shield Wires to Improve the Lightning Performance of Overhead Distribution Lines Hit by Direct Strokes

Author

Rodolfo Araneo, Luigi Verolino, Amedeo Andreotti, Dario Assante, Salvatore Celozzi, José A. Brandão Faria, Araneo, R., Andreotti, A., Brandao Faria, J., Celozzi, S., Assante, D., and Verolino, L.

Subjects
chain matrix, overhead distribution line, shield wire, Computer science, Ground, 020209 energy, Acoustics, lightning, multiconductor lines, overhead distribution lines, periodic grounding, shield wires, underbuilt wires, multiconductor line, Energy Engineering and Power Technology, 02 engineering and technology, Lightning, Electric power transmission, Shield, 0202 electrical engineering, electronic engineering, information engineering, Overhead (computing), Electrical and Electronic Engineering, Sensitivity (electronics), Electrical impedance, Electrical conductor
Abstract

The improvement of the lightning performance of overhead distribution lines, hit by direct strokes, is investigated considering the use of additional shield wires beneath the phase conductors. The frequency-domain theory of multiconductor transmission lines with periodical grounding is adopted permitting a rigorous evaluation of the phase and shield wire currents and of the overvoltages across insulators. These can be minimized by careful positioning of the underbuilt shield wires. A sensitivity analysis on the overvoltages is conducted by varying either the position of the underbuilt shield wires and the grounding impedance.

Published
2020

3. Matching a Nonuniform MTL With Only Passive Elements Is Not Always Possible

Author

José A. Brandão Faria and Rodolfo Araneo

Subjects
nonuniform multiconductor transmission lines, Lossless compression, impedance matching, Admittance, Matching (graph theory), Computer science, 020209 energy, Modal analysis, Connection (vector bundle), passive networks, Energy Engineering and Power Technology, surge admittance matrices, 02 engineering and technology, modal propagation, Topology, law.invention, Transmission line, law, Line (geometry), 0202 electrical engineering, electronic engineering, information engineering, Electrical and Electronic Engineering, Resistor
Abstract

This paper presents for the first time a theoretical proof that at certain frequencies it may be impossible to match a nonuniform multiconductor transmission line by terminating it with a multiport load network of only passive partial admittances. The analytical proof is based on a detailed modal analysis of the chain connection of two unequal uniform lossless line sections, each one made of two parallel wires above ground. We show that, when the propagation modes of the resulting nonuniform MTL are about to resonate, the matching load network of partial admittances will require the presence of one negative resistor.

Published
2019

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