Audible Noise Calculation for Different Overhead Transmission Lines

Indra Kurniawan, Suwarno, Oliver Pischler, Uwe Schichler

Research output: Chapter in Book/Report/Conference proceedingConference paperpeer-review


Overhead lines are known to emit audible noise during foul weather conditions. Audible noise phenomena depend largely on the OHL conductor's surface gradient which is therefore also used in all equations for audible noise prediction. Various methods for the calculation of OHL surface gradients have been developed in the past. By using a realistic Indonesian tower design as an example, this contribution draws a comparison between surface gradient results obtained with several common calculation methods and with a finite element calculation. The investigated methods include the Maxwell Potential Coefficient Method, MARKT and MENGELE's method and Charge Simulation Method. A software has been developed for the assessment of the charge simulation method which is also presented here. The comparisons show that even relatively simple methods yield reliable results. Furthermore, this paper investigates the validity of audible noise prediction equations for AC as well as DC OHL with four-conductor bundles. For that purpose, audible noise measurements were carried out in a high voltage laboratory under realistic weather conditions. The results are used to calculate the corresponding sound power levels which are then compared to results calculated with the well-known BPA and EPRI equations for AC and DC audible noise prediction. The approach used to calculate the sound power levels of conductor bundles by measuring audible noise at fixed immission points is explained in great detail. The investigations show good agreement between laboratory results and AN predictions for AC OHL. However, some differences have been noted in the case of DC. In the last part of this contribution the compiled results are used to predict audible noise levels for a European AC line and for the planned HVDC-link between Sumatra and Java.

Original languageEnglish
Title of host publicationProceedings - 2018 53rd International Universities Power Engineering Conference, UPEC 2018
PublisherInstitute of Electrical and Electronics Engineers
ISBN (Electronic)9781538629109
Publication statusPublished - 20 Nov 2018
Event53rd International Universities Power Engineering Conference, UPEC 2018 - Glasgow, United Kingdom
Duration: 4 Sept 20187 Sept 2018


Conference53rd International Universities Power Engineering Conference, UPEC 2018
Country/TerritoryUnited Kingdom


  • audible noise
  • charge simulation method
  • Corona
  • surface gradient

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Electrical and Electronic Engineering
  • Safety, Risk, Reliability and Quality

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