##### Measurement and Modeling of EMI Filters High Frequency Parasitic Parameters
2014

Defending
30.12.2014. 11:00, EEF, Āzenes iela 12, 212.telpā

Supervisor

Reviewers

PHD thesis is devoted to field of Electromagnetic compatibility (EMC) - the branch of electrical sciences which studies the unintentional generation, propagation and reception of electromagnetic energy in conductive form and as radiation, leading to unwanted effects- electromagnetic interference (EMI). This thesis covers one of the EMC aspects- filters- more precisely- EMI power filters modeling, measurements and analysis. First chapter is devoted to overview of EMC topical problems and recent research in the field of EMI power filters. Second chapter covers mathematical background used in thesis- S-parameter application in filter characterization, S- parameter relationships, inductive component analysis using vector network analyzer, capacitive component analysis using vector network analyzer and errors related to measurement methodologies. Third chapter analyzes effects of parasitic component parameters on Π type three phase EMI filters. Three phase filter parasitic components are extracted using S- parameter measurement techniques. Forth chapter analyzes effects of parasitic component parameters on T type three phase EMI filters. Three phase filter parasitic components are extracted using S- parameter measurement techniques. Fifth chapter introduces novel EMI power filter capacitor modeling using CST MWS. Three capacitor models are developed to increase modeling speed and decrease required PC resources. Mutual coupling between two capacitors and mutual coupling reduction techniques are modeled and modeling results compared to measurements. Sixth chapter covers EMI power filter inductor modeling using CST MWS. Inductors are successfully analyzed. Mutual coupling between two inductors and mutual coupling reduction techniques are analyzed using CST MWS. Modeling results are compared to measurement results. PHD thesis is divided in six chapters and includes 161 figures, 7 tables, 113 equations, 53 cross references in literature, annotation in English and Latvian, introduction, table of contents and is written on 162 pages.

Keywords
EMI, EMC, Filter, Filter modeling

Ašmanis, Gundars. Measurement and Modeling of EMI Filters High Frequency Parasitic Parameters. PhD Thesis. Rīga: [RTU], 2014. 162 p.

Publication language
English (en)
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