IEEE-ICIT 2010 Chile

International Conference on Industial Technology

14-17 March 2010, Vina del Mar-Valparaiso, Chile

EPE2007 12th European Conference on Power Electronics and Applications 2.-5. September 2007 Aalborg, Denmark

Inverter-fed drives will be used more and more frequently for variable speed drive applications with
high dynamics. For saving braking energy and reduction of cooling effort it is useful to deploy self-
commutated line side converters even in low power applications. The method proposed in this paper
allows to synchronise the converter to the grid without sensing the line voltage. Hence additional hard-
ware for voltage sensing is not necessary.
Furthermore the implementation of this method on a microcontroller system is presented.

Hassan Ennadifi

Thomas Lannert

Markus Springmann

Markus Springmann

Stephan Storck

Nikias Klohr

Alexander Schies

Alexander Scherer