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A new method for maximum power extraction using a singular perturbation theory for a PMSG‐based wind turbine
Author(s) -
Ganjefar Soheil,
Mohammadi Ali
Publication year - 2017
Publication title -
environmental progress and sustainable energy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.495
H-Index - 66
eISSN - 1944-7450
pISSN - 1944-7442
DOI - 10.1002/ep.12462
Subject(s) - permanent magnet synchronous generator , control theory (sociology) , turbine , singular perturbation , matlab , maximum power principle , wind power , small wind turbine , perturbation (astronomy) , computer science , engineering , power (physics) , mathematics , magnet , physics , electrical engineering , mechanical engineering , mathematical analysis , control (management) , artificial intelligence , operating system , quantum mechanics
This study uses the singular perturbation theory to obtain a reduced‐order subsystem for a wind‐energy conversion system (WECS) based on use of a permanent magnet synchronous generator (PMSG) to extract maximum power from a WECS. The system consists of a variable‐speed wind turbine directly coupled to a PMSG, a diode bridge rectifier, a DC‐to‐DC boost converter, and a battery bank. Singular perturbation theory is used to decompose the dynamic system into slow and fast time scales. The optimal controller is then designed for singular and original systems and applied to the original system to achieve maximum power from a PMSG. Simulations using MatLab/Simulink show the effectiveness of the proposed control strategy for a PMSG based on the singular perturbation theory. © 2016 American Institute of Chemical Engineers Environ Prog, 36: 586–594, 2017