Robust Linear Parameter Varying Fault Reconstruction of Wind Turbine Pitch Actuator using Second-order Sliding Mode Observer

Mousavi, M.; Ayati, M.; Hairi-Yazdi, M.R.; Siahpour, S.

doi:10.22061/jecei.2022.8179.500

Document Type : Original Research Paper

Authors

¹ Department of Mechanical Engineering, Binghamton University, Binghamton 13902, USA.

² School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran, Iran.

³ Department of Mechanical Engineering, University of Cincinnati, Cincinnati 45221, USA.

https://doi.org/10.22061/jecei.2022.8179.500

Abstract

Background and Objectives: In this paper, a novel linear parameter varying (LPV) model of a wind turbine is developed based on a benchmark model presented by Aalborg University and KK-electronic a/c. The observability and validity of the model are investigated using real aerodynamic data.
Methods: In addition, a robust fault detection and reconstruction method for linear parameter varying systems using second-order sliding mode observer is developed and implemented on the linear parameter varying model. The fault signal is reconstructed using a nonlinear term named equivalent output error injection during sliding motion and a proper transformation. The effect of uncertainties and incorrect measurements are minimized by employing an oriented method that requires solving a nonlinear matrix inequality. During numerical simulations, an actuator fault in the pitch system is considered and the performance of the method in fault reconstruction is investigated.
Results: Wind speed range is considered from 14 m/s to 16 and it is regarded as a stochastic input exerting aerodynamic torque. Fast and accurate fault reconstruction happens in 0.6 seconds with less than one percent error. The observer performance is not affected by the fault and fault is estimated in 2.5 seconds with an error smaller than 2.48 percent.
Conclusion: Results illustrate fast and accurate fault reconstruction and accurate state estimations in the presence of actuator fault.

Keywords

Main Subjects

Non Linear Control

Open Access

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Journal of Electrical and Computer Engineering Innovations (JECEI)

Robust Linear Parameter Varying Fault Reconstruction of Wind Turbine Pitch Actuator using Second-order Sliding Mode Observer

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References

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Volume 11, Issue 1
January 2023
Pages 229-241

Robust Linear Parameter Varying Fault Reconstruction of Wind Turbine Pitch Actuator using Second-order Sliding Mode Observer

References

References

Send comment about this article

Volume 11, Issue 1January 2023Pages 229-241

Volume 11, Issue 1
January 2023
Pages 229-241