Modelos de geração de ruído audível de linhas de muito alta tensão

Daniel Dias da Silva

Key information

Authors:

Daniel Dias da Silva (Daniel Dias da Silva)

Supervisors:

André Quaresma dos Santos (André Quaresma dos Santos)

Published in

November 28, 2025

Abstract

Audible noise generated by extra-high voltage transmission lines is primarily caused by the corona effect, whose intensity depends on several factors such as conductor characteristics, applied voltage, and atmospheric conditions. Predicting this noise is therefore a key aspect in assessing the environmental impact during the design phase of new lines and ensuring compliance with relevant regulations. This thesis presents a study of predictive models for audible noise, beginning with a literature review of the phenomenon and existing methodologies, with particular focus on the BPA, EPRI, and REN models. Subsequently, a computational tool was then developed to simulate noise levels under various operating conditions, allowing flexible control over the input parameters of each model. Finally, field measurements of audible noise near transmission lines were introduced, analyzed, and compared with the theoretical results produced by the REN model. This study led to the development of a versatile simulation tool and enabled a detailed analysis of measurement data, providing a solid foundation for future studies aimed at validating and refining predictive models of audible noise from extra-high voltage transmission lines.