Planetary Gearbox Torsional Vibration Effects on Wound-Rotor Induction Generator Electrical Signatures

• Published in: IEEE transactions on industry applications Vol. 52; no. 6; pp. 4770 - 4780
• Main Authors: Marzebali, Mohammad Hoseintabar, Kia, Shahin Hedayati, Henao, Humberto, Capolino, Gerard-Andre, Faiz, Jawad
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.11.2016; The Institute of Electrical and Electronics Engineers, Inc. (IEEE); Institute of Electrical and Electronics Engineers
• Subjects: Condition monitoring; Engineering Sciences; fast Fourier transform; gearbox torsional vibration; Gearboxes; Gears; Induction generators; Mathematical models; Mechanical components; Mechanical properties; mechanical systems; noninvasive method; Powertrain; Rotors; Signatures; stator current analysis; Stator windings; Sun; Torsional vibration; Vibration effects; Vibrations; Wind turbines; wound-rotor induction generator
• ISSN: 0093-9994; 1939-9367
• DOI: 10.1109/TIA.2016.2600599

In this paper, torsional vibration effects of a planetary gearbox on electrical signatures of a wound-rotor induction generator have been studied in a representative complex electromechanical system through both numerical simulations and experiments. A universal lumped-parameter model has been developed with consideration of impacts of main drive-train mechanical components. This model has been adapted to a reduced-scale wind turbine simulator based on a 5.5-kW three-phase wound-rotor induction generator used for experimental validation at different load conditions. For this system, it has been demonstrated that most of mechanical characteristic frequencies of the planetary gearbox are difficult to be identified in the stator current spectrum. Nevertheless, the proposed approach has been used as an initial stage to assess the effectiveness of noninvasive condition monitoring of a planetary gearbox based on electrical signatures analysis.