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Optimal Design and Performance Analysis of linear Variable Reluctance Resolver with Sinusoidal Rotor

Bahari, Mohammad | 2018

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 52072 (05)
  4. University: Sharif University of Technology
  5. Department: Electrical Engineering
  6. Advisor(s): Nasiri Gheidari, Zahra
  7. Abstract:
  8. Linear position sensors are widely used in linear motion-control drives. In this thesis, the design, optimization, performance analysis, and prototyping of a linear variable reluctance, variable area resolver is discussed. To test the new design approach of the studied sensor, three-dimensional time-stepping finite element analysis (3-D TSFEA) is crucial. However, the 3D TSFEA is a very time-consuming method which leads to an inappropriate choice for co-using with optimization algorithms. Hence, an accurate analytical model based on a winding function (WF) method presented in favor of calculating the inductances, air-gap flux density, induced voltages precisely and yet is a very fast method, which leads the mentioned model a suitable option to utilize for achieving an optimal design of the linear variable reluctance resolver. Then the results of the design, optimization and analytical model are verified with the 3-D TSFEA. In continue, the effect of longitudinal end effect causes imbalances in induced voltages level of the first and last teeth coils. In this thesis, the coils turn compensation method employed to level up the induced voltages of the first and last coils at the same level as the others. The mentioned compensation method verified with the 3-D TSFEA. Finally, the experimental prototype is used to evaluate the developed analytical model and the optimization process
  9. Keywords:
  10. Linear Sensor ; Linear Variable Reluctance Resolver ; Winding ; Three Dimensional Finite Element Method ; End Effect

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