Analytical Modeling and Optimization of a Tubular VR Resolver

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Keyvannia, Ali | 2021

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 54380 (05)
University: Sharif University of Technology
Department: Electrical Engineering
Advisor(s): Nasiri Gheidari, Zahra
Abstract:
With the recent developments in power electronics and electrical drives, there is a need for precise position sensors today more than ever. Having high precision and high reliability in harsh environments, resolvers are the most preferred position sensors among other types of prevalent position detectors. In order to control linear machines, which are widely used in different industries, linear resolvers are employed. This project aims to propose a structure for tubular variable reluctance resolvers, formulate an analytical model for and optimize the proposed structure. In addition to having an acceptable precision, the proposed model should be less time-consuming compared with finite element analysis so that it would be applicable in designing an optimized resolver. Furthermore, since longitudinal end-effects play an important role in the position detection error of linear-based resolvers, it is essential to include these phenomena while developing the analytical model. After compensating for the end-effects, a prototype of the presented structure would be built
Keywords:
Magnetic Equivalent Circuit (MEC) ; Linear Algebra ; Analytical Modeling ; Schwarz-Christoffer (S-C)Mapping ; End-Effects Compensation ; Variable Reluctance Tubular Resolver

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