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Optimal mixed control of Axial Flux Permanent Magnet Synchronous generator wind turbines with modular stator structure.

Authors :
Pirzad, Somayeh
Ghadimi, Ali Asghar
Abolmasoumi, Amir Hossein
Jabbari, Ali
Bagheri, Saeed
Source :
ISA Transactions; Sep2021, Vol. 115, p153-162, 10p
Publication Year :
2021

Abstract

Wind turbine systems are constructed using different types of generators, aero-mechanical components and control systems. Due to their ability to work in low speed, Axial Flux Permanent Magnet (AFPM) generators are becoming widespread in wind energy systems which contributes to eliminating the gearbox from the system, noticeable increase in efficiency and decrease in system weight. Due to the modular nature of the stator in AFPM generators, it is possible to control each module independently. In this paper, in addition to obtain the dynamic model of the turbine and AFPM generator, a control strategy is designed based on Mixed Integer Nonlinear Programming (MINLP) to incorporate both pitch angle and the number of active stator modules as control input signals. These control signals are used in order to maximize system efficiency and regulate output voltage in different wind speeds and electrical loads. Simulation results for a typical generator shows the effectiveness of the proposed method in speed control of the generator. • AFPMG's are becoming widespread in wind energy systems. • Modular structure AFPMGs makes it is possible to control each module independently. • Hybrid DVASMC/pitch-angle-control method is designed to regulate the voltage/speed. • Optimal Mixed Integer Nonlinear Programming control is shown to be efficient. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00190578
Volume :
115
Database :
Supplemental Index
Journal :
ISA Transactions
Publication Type :
Academic Journal
Accession number :
151307266
Full Text :
https://doi.org/10.1016/j.isatra.2021.01.001