Posters
Come meet the poster presenters to ask them questions and discuss their work
We would like to invite you to come and see the posters at our upcoming conference. The posters will showcase a diverse range of research topics, and will give delegates an opportunity to engage with the authors and learn more about their work. Whether you are a seasoned researcher or simply curious about the latest developments in your field, we believe that the posters will offer something of interest to everyone. So please join us at the conference and take advantage of this opportunity to learn and engage with your peers in industry and the academic community.
On 9 April at 17:15, we’ll also hold the main poster session and distinguish the 7 best posters of this year’s edition with our traditional Poster Awards Ceremony. Join us at the poster area to cheer and meet the laureates, and enjoy some drinks with all poster presenters!
We look forward to seeing you there!
PO155: Acoustic noise optimization through blade angle adjustment - A successful case study
Martin Peters, Head of Measurement Technology, Green Wind Engineering GmbH
Abstract
Operating noise from wind turbines (WT) must be reduced to a minimum in order to ensure the acceptance of wind energy in neighboring residential areas. In Germany, a noise immission prediction is therefore already used in the approval process for wind turbines to assess whether the specified sound pressure levels in accordance with the Federal Immission Control Act are observed. If the limit value is exceeded during actual operation of the wind turbine, the authorities can impose noise-reduced operation or even night-time shutdown. In the case presented, due to complaints from local residents about night-time noise from the wind farm (operating already in a noise-reduced mode), the authority required a noise emission measurement on a multi-megawatt wind turbine. The determined sound pressure level of 102.4 dB(A) exceeded the approved sound pressure level of 102.0 dB(A) at the site. The operator was requested by the authorities to take measures to reduce noise, or a shutdown of the entire wind farm at night would be imposed. There are various approaches to reducing noise emissions: - On the hardware side, blade elements such as trailing edge serrations can be retrofitted or fitted at the factory during rotor blade production. - The operational management can set adapted night modes that strike a compromise between noise and power generation. This case study shows the successful noise reduction through blade angle (BA) optimization, which is manufacturer-independent and does not require the installation of blade elements.
No recording available for this poster.
