Change search
ReferencesLink to record
Permanent link

Direct link
Co-Simulation of Coupled Electromagnetic and Nonlinear Circuit Problems using the Partial Element Equivalent Circuit Method
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Embedded Internet Systems Lab.
2014 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Co-simulation of coupled electromagnetic (EM) structures and linear/nonlinear circuits has become a major demand in today's engineering. In many disciplines such as antenna engineering, microwave circuit design, electromagnetic compatibility (EMC), and even fairly low-frequency power electronic systems, simulation techniques capable of incorporating both EM structures and lumped circuit elements have become a necessity. EM effects such as radiation, crosstalk, and packaging, as well as circuit behaviors, should be considered in the design of new systems and products. The partial element equivalent circuit (PEEC) method is a numerical method incomputational electromagnetics that is based on an integral form of Maxwell's equations and proposes an electronic equivalent circuit for an EM structure. With the equivalent circuit for the EM structure and the ability to combine this circuit with any external circuit, PEEC is the natural choice for combining EM and circuit simulations. In this thesis, co-simulation of coupled EM and circuit problems using the PEEC method has been examined in a structured scheme. First, inclusion of linear and nonlinear circuit components in the PEEC method is studied by extension of the method and implementing those components in a developed solver. Although the simulation results show very good agreements, the implementation of the nonlinear components in the solver is shown to be a cumbersome and time-consuming task.Second, the equivalent circuits resulting from the PEEC method, along with all theexternal circuitry, have been exported to a SPICE solver. Solution time and scalability of this approach have been examined. The method, although simple in implementation, is limited to quasi-static simulation and also is shown to be impractical when dealing with real-world problems.The third phase of the work is concerned with a novel hybrid method that combines the capabilities of SPICE with a developed PEEC solver. The method establishes a link between a PEEC (EM) solver and a SPICE (circuit) solver. Having a specialized EM solver enables the developer to apply theoretical and software optimization techniques to obtain an optimal solver. On the other hand, holding a SPICE solver responsible for the circuit simulations releases the developer from implementing any nonlinear circuit component models in the solver. The approach is suitable for simulating systems of combined EM structures with N-terminal active devices and circuits. Good agreements in both the time and frequency domains, along with reasonable solution times, show the feasibility of the proposed method.

Place, publisher, year, edition, pages
Luleå tekniska universitet, 2014.
Series
Doctoral thesis / Luleå University of Technology 1 jan 1997 → …, ISSN 1402-1544
Research subject
Industrial Electronics
Identifiers
URN: urn:nbn:se:ltu:diva-18292Local ID: 7da0cc83-04ae-4b5f-9267-707f6d821cd6ISBN: 978-91-7439-896-0ISBN: 978-91-7439-897-7 (PDF)OAI: oai:DiVA.org:ltu-18292DiVA: diva2:991299
Note
Godkänd; 2014; 20140317 (sohsaf); Nedanstående person kommer att disputera för avläggande av teknologie doktorsexamen. Namn: Sohrab Safavi Ämne: Industriell elektronik/Industrial Electronics Avhandling: Co-Simulation of Coupled Electromagnetic and Nonlinear Circuit Problems Using the Partial Element Equivalent Circuit Method Opponent: Professor Wil Schilders, Department of Mathematics and Computer Science, Technische Universiteit Eindhoven, Nederländerna Ordförande: Docent Jonas Ekman, Avd EISLAB, Institutionen för system- och rymdteknik, Luleå tekniska universitet Tid: Fredag den 16 maj 2014, kl 08.30Available from: 2016-09-29 Created: 2016-09-29Bibliographically approved

Open Access in DiVA

fulltext(2296 kB)17 downloads
File information
File name FULLTEXT01.pdfFile size 2296 kBChecksum SHA-512
af7ba9271a503044c6d3584027865ef78f58ea1e43f7e0f0f57e5c7687930e4a9c77de357e508f3ce968aeff1a04e9ee4d60255d787b54f846729b8f2298d742
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Safavi, Sohrab
By organisation
Embedded Internet Systems Lab

Search outside of DiVA

GoogleGoogle Scholar
Total: 17 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 27 hits
ReferencesLink to record
Permanent link

Direct link