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Harmonic assessment of variable-speed wind turbines considering a converter control malfunction

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3 Author(s)
R. Melicio ; University of Beira Interior, Portugal ; V. M. F. Mendes ; J. P. S. Catalao

This study is on variable-speed wind turbines with permanent magnet synchronous generator. Three different drive train mass models and three different topologies for the power-electronic converters are considered. The three different topologies considered are, respectively, a matrix, a two-level and a multilevel converter. A novel control strategy, based on fractional-order controllers, is proposed for the wind turbines. The influence of a converter control malfunction on the harmonic current emissions is studied. The performance of disturbance attenuation and system robustness is ascertained. Simulation results are presented, and conclusions are duly drawn.

Published in:

IET Renewable Power Generation  (Volume:4 ,  Issue: 2 )