New concept of active control of transformer noise, Part 1: The active envelope
Keywords:
Electric transformers, Harmonic analysis, Mathematical models, Sensors, Active noise control (ANC)Abstract
A new concept of active noise control for transformer using a set of independent control units distributed on the transformer blade has been proposed. A theoretical model has been developed to determine the optimum distribution of the control unit on a transformer surface. An experimental setup composed of 24 control units has also been realized. This system allowed to determine that a distance of about 0.20 m between the error sensor and the speaker of each control unit ensures good stability of the system. An experiment realized on a real transformer gave a noise reduction of 10 dB of the first harmonics.Downloads
Published
How to Cite
Issue
Section
License
Copyright on articles is held by the author(s). The corresponding author has the right to grant on behalf of all authors and does grant on behalf of all authors, a worldwide exclusive licence (or non-exclusive license for government employees) to the Publishers and its licensees in perpetuity, in all forms, formats and media (whether known now or created in the future)
i) to publish, reproduce, distribute, display and store the Contribution;
ii) to translate the Contribution into other languages, create adaptations, reprints, include within collections and create summaries, extracts and/or, abstracts of the Contribution;
iii) to exploit all subsidiary rights in the Contribution,
iv) to provide the inclusion of electronic links from the Contribution to third party material where-ever it may be located;
v) to licence any third party to do any or all of the above.