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Modeling and Optimal Design of the Linear Switched Reluctance Motor with Segmental Translator

Golzarzadeh, Milad | 2024

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 57329 (05)
  4. University: Sharif University of Technology
  5. Department: Electrical Engineering
  6. Advisor(s): Oraee Mirzamani, Hashem; Ganji, Babak
  7. Abstract:
  8. Recently, the linear switched reluctance motor with segmental translator has been introduced as a new type of improved linear switched reluctance motor, which uses less iron compared to conventional motor. Therefore, this motor has lower iron losses and higher power/volume ratio. In order to model linear switched reluctance motor with segmental translator, the finite element method often gives accurate results. However, in finite element analysis, if the details of meshing or many other analyzes are considered, a lot of time must be spent. Therefore, it is necessary to use faster methods to obtain the characteristics of this motor. In this research thesis, a magnetic equivalent circuit model is proposed for the linear switched reluctance motor with segmental translator, which can be used to calculate the static and dynamic characteristics, including the flux-linkage and the thrust force, with acceptable accuracy. Based on the lumped parameters model approach, thermal modeling of motor is carried out, which can be used to predict the temperature distribution in different parts of the motor with high speed and accuracy. In order to design the motor for different applications, first the dimensional equation of the motor must be determined. Therefore, based on mathematical relationships, motor design equations are presented, then using sensitivity analysis, the effect of motor geometry on its performance is investigated and the approximate dimensions of the motor are obtained. Based on this, a linear switched reluctance motor with segmental translator is designed for the use of electric sliding doors, and in order to increase the average instantaneous thrust force and reduce the force ripple, it is optimized with the design of experiments approach and based on the response surface method. Finally, in order to improve the performance of the motor, it is suggested to add a permanent magnet in its body
  9. Keywords:
  10. Segmental Translator ; Analytical Modeling ; Magnetic Equivalent Circuit (MEC) ; Thermal Modeling ; Permanent Magnet ; Linear Switched Reluctance Motor

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