Time stepping finite element analysis of a variable speed synchronous generator with rectifier

Karin Thorburn, Karl-Erik Karlsson, Arne Wolfbrandt, Mikael Eriksson and Mats Leijon

Applied Energy, 2006, vol. 83, issue 4, pages 371-386

Abstract: Several applications for renewable energy conversion make use of variable speed generators. A conversion from variable frequency to grid frequency is therefore essential. One part of the converter is a rectifier. A rectifier model is presented, which is integrated in a time stepping finite element simulation environment where the generator and circuit equations are solved simultaneously. The model handles bidirectional alternator speeds as the application is a linear generator for ocean wave energy conversion. The rectifier model is extended with a load model, consisting of R, L and E, and simulations show what impact the rectifier has on the generator's behaviour.

Keywords: Rectifier; model; Variable; speed; Linear; generator; Renewable; energy; DC; transmission; Finite; element; method; Coupled; field; and; circuit; equations (search for similar items in EconPapers)
Date: 2006
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