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Design and optimization of a large-scale permanent magnet synchronous generator

Alemi-Rostami, M ; Sharif University of Technology | 2022

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  1. Type of Document: Article
  2. DOI: 10.24200/sci.2019.53569.3314
  3. Publisher: Sharif University of Technology , 2022
  4. Abstract:
  5. Direct-drive permanent magnet synchronous generators enjoy numerous advantages including improved reliability, low maintenance, long life, and developed performance characteristics. In recent years, many researchers have worked on these generators to enhance their performance, especially for the wind turbine application. The focus of this paper is on the development of a step-by-step method for the design of a permanent magnet synchronous generator. Then, the winding function method is used to model the generator and calculate its output characteristics analytically. The analytical results of the designed generator are validated using Finite Element Analysis (FEA) and it is demonstrated that the obtained results from both methods are in great agreement with the experimental measurements of the Northern Power direct-drive generator. The sensitivity analysis and optimization procedure based on genetic algorithm are employed to design an optimum generator. The optimization goal is obtaining higher efficiency and power factor with lower voltage regulation and required permanent magnet volume compared to the initial design. In addition, the calculation of the voltage Total Harmonic Distortion (THD) is presented and the optimum skew angle for the optimum generator is computed to reduce the voltage THD. © 2022 Sharif University of Technology
  6. Keywords:
  7. Design and optimization ; Direct-drive permanent magnet synchronous generator ; Voltage THD calculation ; Winding function method ; Design ; Genetic algorithms ; Sensitivity analysis ; Synchronous generators ; Voltage regulators ; Winding ; Direct drive ; Direct-drive permanent magnet synchronoi generator ; Distortion calculations ; Optimum skew angle ; Performance calculation ; Permanent magnet synchronous generator ; Skew angles ; Voltage total harmonic distortion ; Voltage total harmonic distortion calculation ; Winding function methods ; Permanent magnets ; Detection method ; Instrumentation ; Optimization ; Performance assessment
  8. Source: Scientia Iranica ; Volume 29, Issue 1 D , 2022 , Pages 217-229 ; 10263098 (ISSN)
  9. URL: https://scientiairanica.sharif.edu/article_21561.html