Print Email Facebook Twitter Modelling and comparative study of distributed inductive power transfer systems for mobile electric vehicle charging applications Title Modelling and comparative study of distributed inductive power transfer systems for mobile electric vehicle charging applications Author Lanaras, E. Contributor Bauer, P. (mentor) Ferreira, J.A. (mentor) Ramirez-Elizondo, L.M. (mentor) Faculty Electrical Engineering, Mathematics and Computer Science Department Electrical Sustainable Energy Date 2014-04-29 Abstract The transfer of energy between systems that are not connected by physical contact between them can be accomplished by wireless power transfer methods, through electromagnetic field or radiation between a primary-transmitter and a secondary-receiver section. In the particular field of e-mobility, inductive power transfer systems have been extensively studied and implemented over the last years, proving their effectiveness of powering the drivetrain of electric vehicles, by a magnetic field between a set of loosely coupled coils. The power is generated by a concentrated primary in the form of a pad, or a distributed coil on a roadway track and transferred to the secondary, mounted on the electric vehicle. The operating principles of inductive power transfer include the analysis of the generated magnetic field through the basic electromagnetic equations. Capacitive components are introduced on both sides of the layout, to compensate for the large leakage inductance due to the increased air-gap, indicated by the required clearance between the vehicle and the road. Further studies are conducted on the design of distributed systems, to investigate variations of single and multiphase layouts. Several topologies are introduced and categorized, according to the direction of the field generating current and the single or multiple phase generation of the primary flux. The design variations are analyzed through finite element simulations and the output performance is assessed using equivalent circuit representation. In the particular case of multiphase primary section designs, the interphase mutual inductance can cause power circulation between the primary loops of adjacent phases. The problem is addressed by introducing an adequately designed terminal correction setup, inversing the power circulation between the affected phases. Additionally, an optimization algorithm is introduced, to calculate the optimum parameter values of selected designs, according to limitations and conditions imposed by the application, based on finite element simulation results. The relations between the design parameters and the operation variables are estimated, by analytical calculations and experimental measurements. The accuracy of the generated values is increased by a multiple iteration process and examples of the implementation are calculated for both single and three phase topologies. The output performance of the optimized designs is estimated and compared in terms of efficiency and power delivery for different operating conditions and alignment positions. Subject inductive power transferinterphase mutual inductanceoptimization algorithmquadrature pick-up To reference this document use: http://resolver.tudelft.nl/uuid:f4805b90-ed9e-4a8c-bd3e-01ad9ec1a597 Part of collection Student theses Document type master thesis Rights (c) 2014 Lanaras, E. Files PDF Distributed_IPT_Systems_E ... Thesis.pdf 13.4 MB Close viewer /islandora/object/uuid:f4805b90-ed9e-4a8c-bd3e-01ad9ec1a597/datastream/OBJ/view