Design Optimization of Outer Rotor Toothed Doubly Salient Permanent Magnet Generator Using Symbiotic Organisms Search Algorithm

Cherif Guerroudj, Yannis L. Karnavas, Jean-Frederic Charpentier, Ioannis D. Chasiotis, Lemnouer Bekhouche, Rachid Saou and Mohammed El-Hadi Zaïm
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Cherif Guerroudj: Laboratoire des Systèmes Électriques Industriels (LSEI), BP No.32 El-Alia, Bab Ezzouar, Algiers 161 11, Algeria
Yannis L. Karnavas: Electrical Machines Laboratory, Department of Electrical and Computer Engineering, Democritus University of Thrace, 671 00 Xanthi, Greece
Jean-Frederic Charpentier: French Naval Academy, Institut de Recherche de l’ Ecole Navale (IRENav EA 3634), 292 40 Brest, France
Ioannis D. Chasiotis: Electrical Machines Laboratory, Department of Electrical and Computer Engineering, Democritus University of Thrace, 671 00 Xanthi, Greece
Lemnouer Bekhouche: Laboratoire de Génie Électrique, Faculté de Technologie, Université de Bejaia, Bejaia 060 00, Algeria
Rachid Saou: Laboratoire de Génie Électrique, Faculté de Technologie, Université de Bejaia, Bejaia 060 00, Algeria
Mohammed El-Hadi Zaïm: Department of Electrical Engineering, Polytech Nantes, Université de Nantes, BP 406 Nantes, France

Energies, 2021, vol. 14, issue 8, 1-25

Abstract: Wind turbine (WT) technology becomes more and more important due to the serious environmental and energy issues. The toothed poles outer rotor doubly salient permanent magnet (DSPM) generator with simple and durable design, high torque and high-power density has a great prospect in wind turbines application. The large diameter makes the construction of such a machine more convenient due to the installation of the turbine blades directly to the outer rotor generator surface. Nevertheless, the size of the generator must be increased to provide larger output power. This increases the generator’s mass. Thus, larger massive DSPM generators are undesirable in wind turbine design. In this paper, an optimization design procedure of the outer rotor doubly salient permanent magnet generator ORDSPMG is proposed for 10 kW WT application. The reduction of the generator weight is demonstrated and proofed. The considered machine version is characterized by having the same effective axial length and output torque imposed by the specifications relative to the 10 kW direct drive WT. An optimization procedure using a fast and effective method, namely the symbiotic organism search (SOS) algorithm coupled to a parametric two dimensional finite elements analysis (2D-FEA), is employed to optimize the machine parameters. The main parameters affecting the generator design are also analyzed. The results obtained reveal that the proposed generator topology presents low weight and thus high torque density among other satisfactory characteristics.

Keywords: doubly salient permanent magnet generator; electrical machines design; metaheuristics; optimization; outer rotor machines; performance; symbiotic organisms search algorithm (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
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