Journal of Magnetics

The Korean Magnetics Society (한국자기학회)
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Design and Characteristics Analysis of the 78 kWe Grade Synchronous Generator for Disused Diesel Engines

  • Youn, Jun-Seop (Rotating Machinery Center, Korea Testing Certification) ;
  • Kim, Hae-Joong (Rotating Machinery Center, Korea Testing Certification) ;
  • Kim, Youn-Hwan (Rotating Machinery Center, Korea Testing Certification) ;
  • Moon, Jae-Won (Rotating Machinery Center, Korea Testing Certification)
  • Received : 2016.07.28
  • Accepted : 2017.01.26
  • Published : 2017.03.31

Abstract

This study dealt with the design process of the 78 kW permanent magnet synchronous generator for engines. After the calculation of the basic dimensions through a theoretical method in the process of initial model design, FEA (finite-element analysis) and a d,q-axis equivalent circuit were used to identify the generator characteristics depending on the number of poles. With the use of the space harmonic analysis method, the back-EMF (electromotive force) and THD were checked, and then the number of slots was determined. In addition, the most optimized generator dimensions were determined through a sizing optimization technique. Based on this, the optimum model with enhanced efficiency, material costs, and temperature characteristics was derived, and the availability of the design method was confirmed through a comparative analysis of the initial and optimum models.

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Acknowledgement

Supported by : Korea Institute of Energy Technology Evaluation and Planning (KETEP)

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