Analytical Method for Calculating Corona Noise on HVAC Power Line Carrier Communication Channels

Abstract
A method is presented for computing corona noise level on coupling arrangements of HVAC power line carriers. Corona noise is generated by the corona current, which is injected into the bundle conductors by the corona sources randomly distributed along the line. Corona current is computed by adding the excitation function and the propagation factor. The excitation function is eval uated by using a formula already definied for predicting radio noise level. The propagation factor is computed by using a very accurate line simulation-model and a rigorous propagation algorithm, valid also for a non-uniform transmission system of any length or geometrical configuration or terminal impedances. Corrective terms are introduced, which allow evaluation of corona noise in the carrier frequency range, with any given bandwidth, in terms of quasi-peak or rms or average value.

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