22 Jul '16, 3pm

Silencing Transformers with Numerical Simulation

Silencing Transformers with Numerical Simulation

Of the extensive equipment required for power flow control and safety across the grid, transformers are needed for adjusting voltage levels in power transmission lines. However, unwanted noise is produced by vibrations in the transformer and by the fans and pumps used in the cooling system. This sound is often noticeable as a faint humming or buzzing, audible to passersby who get close enough. Reducing this noise is necessary and desirable due to both safety regulations and comfort. ABB, a major transformer manufacturer with offices throughout the world, makes use of numerical simulation in COMSOL Multiphysics® software to analyze the multiple sources of sound from transformers. In their endeavors to understand and optimize ABB's transformer designs for minimal hum, Romain Haettel, Anders Daneryd, and Mustafa Kavasoglu of ABB Corporate Research Center (CRC) modeled the mec...

Full article: http://spectrum.ieee.org/computing/software/silencing-tra...

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spectrum.ieee.org 29 Jul '16, 8pm

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spectrum.ieee.org 27 Jul '16, 7pm

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