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Design and Optimization of a Six-phase Winding-on-teeth Induction Machine for Electric Vehicle

Rezazadeh Souteh, Ghasem | 2020

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  1. Type of Document: M.Sc. Thesis
  2. Language: English
  3. Document No: 54511 (05)
  4. University: Sharif University of Technology
  5. Department: Electrical Engineering
  6. Advisor(s): Tahami, Farzad
  7. Abstract:
  8. Electrical machines represent an important research area in electrical engineering with numerous industrial applications. Multiphase induction machines are considered as the new generation of electrical machines in industrial applications because of their structure, robustness, simplicity, reasonable cost, long lifetime, and high reliability. A solution in the way of improving induction machine performances is using concentrated windings because they have many advantages such as short non-overlapping end turns, high fault-tolerant capabilities, and easy manufacturing. The main drawback of concentrated windings is its low-quality air gap flux density which significantly deteriorates induction motor performances.In this research, the main goal is to improve performances of six-phase induction motors with concentrated windings. For this purpose, a new feasible concentrated winding layout, namely pseudo-concentrated windings, is proposed using winding function analysis, which has a higher fundamental harmonic of the air gap flux density compared to the conventional concentrated windings. A new optimum six-phase induction motor equipped with pseudo-concentrated windings has been designed and manufactured considering winding features such as shorter end windings and lower fundamental of the air gap flux density compared to conventional distributed windings. The new motor performances display that the six-phase induction motor with pseudo-concentrated windings could have better performances compared to the ones of the same motor with distributed windings. In order to investigate more, an outer rotor six-phase induction motor with the pseudo-concentrated windings has been designed and optimized for light-duty low-power electric vehicles. As expected, the manufactured optimum outer rotor six-phase induction motor provides acceptable performances for the in-wheel application
  9. Keywords:
  10. Analytical Modeling ; Finite Element Analysis ; Induction Motors ; Electrical Machine Design ; Performance Evaluation ; Multiphase Induction Machines ; Concentrated Windings ; Pseudo-Concentrated Windings (PCW)

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