Note! Please note that this article is currently in the "Article in Press" stage and is not the final "Version of record". While it has been accepted, copy-edited, and formatted, however, it is still undergoing proofreading and corrections by the authors. Therefore, the text may still change before the final publication. Although "Articles in Press" may not have all bibliographic details available, the DOI and the year of online publication can still be used to cite them. The article title, DOI, publication year, and author(s) should all be included in the citation format. Once the final "Version of record" becomes available the "Article in Press" will be replaced by that.
Abstract
Introduction: The rise of ultra-high voltage AC grids creates corona noise, which is crucial for assessing transmission line environments.
Method: This paper analyzes corona noise distribution around AC transmission lines using a 3D model for quantitative assessment. We employ the Finite Element Method, and factors like electric field intensity, conductor splitting, and sag are considered. Corona noise is calculated using CEPRI prediction equations and validated with field data.
Result: We found strong corona noise concentrating within a 20m lateral and 240m vertical radius. Within 50m, lateral attenuation is 3.6%, and longitudinal attenuation is 3.3%.
Conclusion: This research provides insights for monitoring and controlling corona noise in transmission line design and operation.