Performance Evaluation of a Stator Modular Ring Generator for a Shrouded Wind Turbine

Jefferson A. Oliveira and Ály F. Flores Filho
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Jefferson A. Oliveira: Institute of Agricultural and Technological Sciences, Mechanical Engineering, Federal University of Rondonópolis, Rondonópolis 78736-900, Brazil
Ály F. Flores Filho: Engineering School, Electrical Engineering, Federal University of Rio Grande do Sul, Porto Alegre 90035-190, Brazil

Energies, 2020, vol. 14, issue 1, 1-17

Abstract: This paper presents the performance evaluation of a stator modular ring permanent-magnet generator to be embedded in a shrouded wind turbine. That is done to increase the power conversion for the same turbine area when compared to more conventional ones. An adapted structure allows the assembling of the prototype, aiming to verify its performance under controlled conditions. Aiming to verify the accuracy of an analytical subdomain model for a large diameter machine, the evaluation compares the results obtained by the electromagnetic finite element method and experimental measurements. The results of the components of the air-gap flux density, back EMF and electromagnetic torque obtained by the proposed analytical model and finite-element method are in good agreement with the experimental measurements. The experimental measurements of the iron loss and copper loss show that the prototype efficiency can reach 90% approximately.

Keywords: wind generation; modular stator; performance evaluation; analytical model (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: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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