What is Vienna rectifier?

The Vienna Rectifier is a unidirectional three-phase AC/DC converter of boost-type with sinusoidal input currents and controlled output voltage. It only employs three power switches which makes the Vienna Rectifier immune against short-circuit of the DC-link, cost-effective and reduces the blocking voltage of all its semiconductors by a factor two. It was invented by Prof. Kolar, ETH Zurich. Find more information on www.ipes.ethz.ch.