Novel Inductively Coupled Structures for Contactless Power Transfer

  • 沈 紘宇

Student thesis: Doctoral Thesis


This dissertation aims at the design of novel inductively coupled structures and key hardware technologies for the contactless electric vehicle (EV) charging station and linear inductive power track by applying the contactless power transfer technique Firstly both the single-phase closed-shape dual ring pickup and three-phase closed Y-shaped pickup are presented in this dissertation The pickup with high coupling ability is able to be reached by matching the shape of core material with the magnetic field pattern of bipolar track cable Besides the flux path sharing and low reluctance is achieved in the core material of three-phase closed Y-shaped pickup by shaping the pickup in three-phase symmetric and close structures Consequently the coupling performance of the linear inductive power track system is enhanced Secondly the single-phase weaving-type pad and three-phase new-type paddle are developed for contactless EV stationary and plug-in charging stations For the stationary charging the proposed inductively coupled structure which consists of weaving-type coil and overlapping coil is fabri?cated to obtain a uniform profile of mutual inductance over the charging surface and to solve the issue in which the EV has to be placed exactly on a specific area In addition the paddle with the proposed arc-shape three-phase core structure in the plug-in charging station is able to achieve higher smoothness of power flow and higher power capability due to the sharing of flux path and low reluctance in the core material Finally the four laboratory prototypes with the proposed inductively coupled structures are implemented and tested The fundamental experiments are carried out and then the efficiency and coupling performance are demon?strated to validate the calculation accuracy of magnetic equivalent circuits The experiment data show that the performance of contactless EV charging station and linear inductive power track is able to be improved with the proposed inductively coupled structures
Date of Award2014 Jul 18
Original languageEnglish
SupervisorJia-You Lee (Supervisor)

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