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Modeling, Performance Analysis and Construction of Two-Degree-of-Freedom Variable Reluctance Resolver

Hazrati Hezejan, Ali | 2024

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 57749 (05)
  4. University: Sharif University of Technology
  5. Department: Electrical Engineering
  6. Advisor(s): Nasiri gheidari, Zahra; Alipour Sarabi, Ramin
  7. Abstract:
  8. As industries grow more and more, they need to use machines that make linear and rotational motions in two different directions, their control systems need a sensor or sensors that evaluate the machines in different positions. As a result, the process of research and development on position sensors to design or optimize their structure is of particular importance. In the meantime, resolvers are highly regarded as sensors that have unique characteristics and perform well in harsh environmental conditions. From a two-degree-of-freedom sensor that can detect the position and have a linear position independently or similarly. Because it leads to smaller and lighter assembly, increasing accuracy and reliability. Therefore, in this thesis, a variable reluctance two-degree-of-freedom resolver with a sinusoidal cross-section is introduced. The performance of the proposed sensor is investigated in linear, rotary and helical motion. Considering the three-dimensional structure of the sensor and the long finite element simulation time for it, the structure optimization process that requires many repetitions is simply not possible. For this purpose, an analytical model is presented using the magnetic equivalent circuit method, and after confirming the results of the model with the finite element method, it is used for geometric optimization, winding type and end effect compensation. At the end, the practical sample of the optimized resolver is made and the results of the practical test are used to confirm the design and optimization process
  9. Keywords:
  10. Variable Reluctance Resolver ; Magnetic Equivalent Circuit (MEC) ; Proposed Resolver Rotor ; Two Degree of Freedom Resolvers ;

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