Robust Control of a PMSG-Based Wind Turbine Generator Using Lyapunov Function

Roghayyeh Pourebrahim, Amin Mohammadpour Shotorbani, Fausto Pedro García Márquez, Sajjad Tohidi and Behnam Mohammadi-Ivatloo
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Roghayyeh Pourebrahim: Department of Electrical and Computer Engineering, University of Tabriz, Tabriz 51666-16471, Iran
Amin Mohammadpour Shotorbani: Department of Electrical and Computer Engineering, University of Tabriz, Tabriz 51666-16471, Iran
Fausto Pedro García Márquez: Ingenium Research Group, Universidad Castilla-La Mancha, 13071 Ciudad Real, Spain
Sajjad Tohidi: Department of Electrical and Computer Engineering, University of Tabriz, Tabriz 51666-16471, Iran
Behnam Mohammadi-Ivatloo: Department of Electrical and Computer Engineering, University of Tabriz, Tabriz 51666-16471, Iran

Energies, 2021, vol. 14, issue 6, 1-22

Abstract: This paper proposes a robust finite-time controller (FTC) for a permanent magnet synchronous generator (PMSG)-based wind turbine generator (WTG). An adaptive observer is used for the rotor angle, rotor speed, and turbine torque estimations of the PMSG, thus eliminating the use of anemometers. The robustness of the proposed FTC regarding parameter uncertainty and the external weak power grid is analyzed. The impacts of the power grid short-circuit ratio (SCR) at the point of common coupling (PCC) on the conventional proportional-integral (PI) controller and the proposed FTC are discussed. Case studies illustrate that the proposed observer-based FTC is able to estimate the mechanical variables accurately and provides robust control for WTGs with parameter uncertainty and weak power grids.

Keywords: wind turbine; PMSG; nonlinear control; robust control; adaptive observer; weak power grid (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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