 Study on active disturbance rejection control with actuator saturation to reduce the load of a driving chain in wind turbinesLina Ren, Chenhong Mao, Zeyu Song and Fucai Liu Renewable Energy, 2019, vol. 133, issue C, 268-274 Abstract: In this study, nonlinear uncertainty and actuator saturation characteristics are investigated with respect to the issue of reducing the load of a wind turbine drive train. A method of active disturbance rejection control (ADRC) with actuator saturation is proposed to reduce the load on a wind turbine drive chain when the wind speed is below the rated wind speed. A tracking differentiator is designed to arrange the transient process for the error of the torsional vibration angle of the control system. An extended state observer (ESO) is used to estimate the strong non-linearity and “unknown disturbance”, and this is compensated by a linear controller in real time. The actuator saturation is applied to prevent over-saturation of the actuator (generator) and thereby to protect the complete system. Both convergence of the extended state observer and stabilization of the closed-loop system are discussed in this article. Finally, simulation results are detailed to demonstrate the effectiveness and robustness of the proposed control method. Keywords: Actuator saturation; ADRC; Nonlinear uncertainty; Torsional vibration; Wind turbine drive train system (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:133:y:2019:i:c:p:268-274 DOI: 10.1016/j.renene.2018.10.041 Access Statistics for this article Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides More articles in Renewable Energy from Elsevier |
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