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Proceedings Paper

Disturbance observer based pitch control of wind turbines for disturbance rejection
Author(s): Yuan Yuan; Xu Chen; Jiong Tang
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Paper Abstract

In this research, a disturbance observer based (DOB) control scheme is illustrated to reject the unknown low frequency disturbances to wind turbines. Specifically, we aim at maintaining the constant output power but achieving better generator speed regulation when the wind turbine is operated at time-varying and turbulent wind field. The disturbance observer combined with a filter is designed to asymptotically reject the persistent unknown time-varying disturbances. The proposed algorithm is tested in both linearized and nonlinear NREL offshore 5-MW baseline wind turbine. The application of this DOB pitch controller achieves improved power and speed regulation in Region 3 compared with a baseline gain scheduling PID collective controller both in linearized and nonlinear plant.

Paper Details

Date Published: 7 April 2016
PDF: 10 pages
Proc. SPIE 9806, Smart Materials and Nondestructive Evaluation for Energy Systems 2016, 980609 (7 April 2016); doi: 10.1117/12.2219456
Show Author Affiliations
Yuan Yuan, Univ. of Connecticut (United States)
Xu Chen, Univ. of Connecticut (United States)
Jiong Tang, Univ. of Connecticut (United States)

Published in SPIE Proceedings Vol. 9806:
Smart Materials and Nondestructive Evaluation for Energy Systems 2016
Norbert G. Meyendorf; Theodoros E. Matikas; Kara J. Peters, Editor(s)

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