This paper investigates the output impedance of a permanent magnet synchronous generator (PMSG) in dq reference frame, taking the torsional interactions into account. The dynamic behavior of the PMSG drive-train is modelled through both one-mass and two-mass mechanical models. The obtained model is included in the overall output impedance of a grid-connected wind energy conversion system (WECS). According to the analytical model found in this paper, which is also verified by simulation results in Matlab/Simulink, low frequency resonances may appear in the output impedance of the WECS, due to torsional interactions.

Effect of Torsional Interactions on the Output Impedance of PMSG-Based Wind Turbines

Aram Khodamoradi;P. Mattavelli
;
F. Cavazzana
2018

Abstract

This paper investigates the output impedance of a permanent magnet synchronous generator (PMSG) in dq reference frame, taking the torsional interactions into account. The dynamic behavior of the PMSG drive-train is modelled through both one-mass and two-mass mechanical models. The obtained model is included in the overall output impedance of a grid-connected wind energy conversion system (WECS). According to the analytical model found in this paper, which is also verified by simulation results in Matlab/Simulink, low frequency resonances may appear in the output impedance of the WECS, due to torsional interactions.
2018
2018 20th European Conference on Power Electronics and Applications (EPE'18 ECCE Europe)
978-9-0758-1528-3
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/3291240
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