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Robust Control of a PMSG-Based Wind Turbine Generator Using Lyapunov Function Pourebrahim, Roghayyeh; Shotorbani, Amin Mohammadpour; Márquez, Fausto Pedro García; Tohidi, Sajjad; Mohammadi-Ivatloo, Behnam

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.

Item Metadata

Title
Robust Control of a PMSG-Based Wind Turbine Generator Using Lyapunov Function
Creator
Pourebrahim, Roghayyeh; Shotorbani, Amin Mohammadpour; Márquez, Fausto Pedro García; Tohidi, Sajjad; Mohammadi-Ivatloo, Behnam
Publisher
Multidisciplinary Digital Publishing Institute
Date Issued
2021-03-19
Description
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.
Subject
wind turbine; PMSG; nonlinear control; robust control; adaptive observer; weak power grid
Genre
Article
Type
Text
Language
eng
Date Available
2021-03-31
Provider
Vancouver : University of British Columbia Library
Rights
CC BY 4.0
DOI
10.14288/1.0396435
URI
http://hdl.handle.net/2429/77695
Affiliation
Applied Science, Faculty of; Non UBC
Citation
Energies 14 (6): 1712 (2021)
Publisher DOI
10.3390/en14061712
Peer Review Status
Reviewed
Scholarly Level
Faculty; Researcher
Rights URI
https://creativecommons.org/licenses/by/4.0/
Aggregated Source Repository
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CC BY 4.0