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oai:www.ideals.illinois.edu:2142/11992 2023-07-10 col_2142_8888 col_2142_5131 com_2142_8887 com_2142_234 com_2142_5130

Chapman, Patrick L. Sander, Jonathan J. 2009-06-01T16:07:30Z 2009-06-01T16:07:30Z 2011-06-02T10:00:10Z 2009-06-01T16:07:30Z 2009-5 The ability to predict the properties of magnetic materials in a device is essential to ensuring the correct operation and optimization of the design as well as the device behavior over a wide range of input frequencies. Typically, development and simulation of wide-bandwidth models requires detailed, physics-based simulations that utilize significant computational resources. Balancing the trade-offs between model computational overhead and accuracy can be cumbersome, especially when the nonlinear effects of saturation and hysteresis are included in the model. This study focuses on the development of a system for analyzing magnetic devices in cases where model accuracy and computational intensity must be carefully and easily balanced by the engineer. A method for adjusting model complexity and corresponding level of detail while incorporating the nonlinear effects of hysteresis is presented that builds upon recent work in loss analysis and magnetic equivalent circuit (MEC) modeling. The approach utilizes MEC models in conjunction with linearization and model-order reduction techniques to process magnetic devices based on geometry and core type. The validity of steady-state permeability approximations is also discussed. Item deposited via ETD process 2009-06-01. Made available in DSpace on 2009-06-01T16:07:30Z (GMT). No. of bitstreams: 2 license.txt: 4065 bytes, checksum: e432d7e0b23ecb27298c9cc2b7703b1e (MD5) sander_jonathan.pdf: 681113 bytes, checksum: 73e16794b5f5b765053d87755ff3a2c8 (MD5) Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Timothy Donohue (tdonohue@illinois.edu) on 2009-06-01T16:07:38Z Item is restricted until 2011-06-01T16:07:37Z Item reinstated by Sarah Shreeves (sshreeve@illinois.edu) on 2011-06-02T10:00:10Z Item was in collections: Dissertations and Theses - Electrical and Computer Engineering (ID: 446) University of Illinois Dissertations and Theses (ID: 204) No. of bitstreams: 3 sander_jonathan.pdf.txt: 107581 bytes, checksum: c17d32a0b32df9029e4aee682fe8e319 (MD5) license.txt: 4065 bytes, checksum: e432d7e0b23ecb27298c9cc2b7703b1e (MD5) sander_jonathan.pdf: 681113 bytes, checksum: 73e16794b5f5b765053d87755ff3a2c8 (MD5) Item released from any restrictions by Sarah Shreeves (sshreeve@illinois.edu) on 2011-06-02T10:00:10Z http://hdl.handle.net/2142/11992 Copyright 2009 Jonathan Sander hysteresis model reduction Magnetic equivalent circuit (MEC) Incorporation of Hysteretic Effects in Model-Order Reduction Analysis of Magnetic Devices Electrical and Computer Engineering Electrical and Computer Engineering University of Illinois at Urbana-Champaign Thesis M.S.