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Steady-state performance analysis and modelling of directly driven interior permanent magnet wind generators

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3 Author(s)
S. A. Saleh ; Fac. of Eng. & Appl. Sci., Memorial Univ. of Newfoundland, St. John's, NL, Canada ; M. A. S. K. Khan ; M. A. Rahman

This study presents a systematic approach for modelling, analysing and evaluating steady-state performances of directly driven interior permanent magnet generators (IPMG) for wind energy conversion systems. The proposed approach for modelling and analysing the performance of PMGs is based on relating the harmonic components present in the stator currents to the harmonic components present in the terminal voltages. Three laboratory IPMG of 1, 5 and 50 kW are tested at different shaft speeds for supplying a resistive load, a rectifier and a resistive load and rectifier inverter with a resistive load. Experimental performances of the tested IPMGs demonstrate direct relationships between terminal voltage harmonic components and harmonic components present in stator currents. Also, investigated experimental performances show significant impacts of stator currents harmonic components on the IPMG efficiency.

Published in:

IET Renewable Power Generation  (Volume:5 ,  Issue: 2 )