Document Type : Research Article

Authors

Department of Electrical and Computer Engineering, Babol Noshiravani University of Technology, P. O. Box: 47148-71167, Babol Iran.

10.30501/jree.2022.317176.1287

Abstract

Nowadays, the permanent magnet (PM) generator has become a large market for wind power, due to their high performance. In this study, an optimal design is established to provide a cost-effective multiphase outer-rotor PM wind generator (OR-PMWG). The generation system (generator and power converter) cost along with the annual energy output must be optimized to obtain the cost-effective PM wind generation. In fact, the main novelty of this paper is presentation of an accurate model of OR-PMWG and investigation of the design variables affecting annual energy output and the generation system cost (GSC). In this perspective, a multi-objective framework is presented to make a satisfactory compromise among all objectives. At first, the main optimal design objectives, i.e., generation system cost as well as annual energy output are optimized separately, and then, a multi-objective optimization is established, in which all the objectives are considered simultaneously. In order to tackle with these optimization problems, the genetic algorithm (GA) is adopted herein to determine the design variables. It is also shown that the simultaneous optimization with 71.39 (MWh) AEO and 2651.51 (US$) GSC leads to a more optimal design for PM wind generation system. In addition, the effectiveness of the presented optimal design is demonstrated by comparison between the theoretical work and that of a prototype outer-rotor PM wind generator. Finally, a finite element analysis (FEA) is carried out for the validation of the outcomes obtained from the proposed optimal design.

Keywords

Main Subjects

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