Differential and common mode propagation in PLC low voltage networks

Author

Chaffanjon, D. ; Duval, G. ; Meunier, M. ; Pacaud, A

Author_Institution

Direction des Etudes et Recherches, Electr. de France, Clamart, France

Volume

14

Issue

2

fYear

1999

fDate

4/1/1999 12:00:00 AM

Firstpage

327

Lastpage

334

Abstract

This paper deals with switching between differential and common mode propagation in power line carriers on low voltage distribution networks. A large field test involving several thousand items of equipment was initiated in 1995, which revealed unexpected results on network environments. An approach to the mode conversion mechanism is explained here. Moreover, experimental measurements confirm the assessment of the amplitude of the phenomena. The common mode propagation in power line carrier (PLC) systems introduces external influences from two directions: telluric currents on one hand; and significant electromagnetic field radiation on the other. Such fields have been both simulated and measured. The consequences of these phenomena are twofold. Firstly, PLC signals from LV networks cross its environment, resulting in the disturbance of others in the neighbourhood. Secondly, it makes electromagnetic compatibility an issue which cannot be neglected

Keywords

carrier transmission on power lines; electromagnetic compatibility; electromagnetic interference; power distribution lines; LV; common mode propagation; differential mode propagation; electromagnetic compatibility; electromagnetic field radiation; low voltage distribution networks; mode conversion mechanism; power line carriers; telluric currents; Attenuation; Conductors; Earth; Electromagnetic compatibility; Electromagnetic fields; Electromagnetic measurements; Electromagnetic propagation; Intelligent networks; Low voltage; Programmable control;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.754070

Filename

754070