STUDY OF CURRENT AND ELECTROMOTIVE FORCE WAVEFORMS IN ORDER TO IMPROVE THE PERFORMANCE OF LARGE PM SYNCHRONOUS WIND GENERATOR
The paper presents a comparison between sinusoidal and trapezoidal waveforms in order to reduce the torque ripple and the power to grid fluctuation for large direct-drive PM wind generator. Trapezoidal waveform brings 28% higher power density but also two major drawbacks: necessity to vary the DC bus voltage and requirement for an additional filter on the DC bus.
Unable to display preview. Download preview PDF.
- M.R. Dubois, “Review of Electromechanical Conversion in Wind Turbines”, Report EPP00.R03, TU Delft, ITS Faculty, The Netherlands, April 2000.Google Scholar
- M.R. Dubois, H. Polinder, J.A. Ferreira, “Comparison of Generator Topologies for Direct-Drive Wind Turbines”, Proceedings of the Nordic Countries Power and Industrial Electronics Conference (NORPIE), Denmark, 2000, p. 22–26.Google Scholar
- J.F. Gieras, M. Wing, Permanent Magnet Motor Technology, 2nd edition, Revised and Expanded Marcel Dekker Inc., New York.Google Scholar
- J.R. Henderson Jr., T.J.E. Miller, Design of Brushless Permanent-Magnet Motors, Oxford: Magna Physics Publishing and Calderon Press, 1994.Google Scholar