PELINCEC 2005 - Politechnika Warszawska

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Working Group 2 — Components and Converters This topic, bearing the same name as the working group, contained 34 regular papers divided into three presentation forums i.e. lectures session (3 papers) dialog session (24 papers) and WATAB Sessions (7 papers). It must be noted that many papers presented in other topics, especially Power Quality and Electric Drive Control, contained significant information related to converter topologies. Also, the first Plenary Lecture - “State of art and developments of medium voltage converters”, presented by Prof. Steffen Bernet (TU Berlin, Germany), gave a very impressive picture of state progress in development and application of power electronics in high energy sector. Professor Bernet giving his lecture during the Opening Session Firstly, very up to date news about high power switches as IGCT and high voltage IGBT’s has been given. Then an overview of PWM medium voltage converters was given. Also the Plenary Lecture, delivered by Prof Hirofumi Akagi (Nakoga University of Technology, Japan) on the last day of the conference - “Modern active filters and traditional passive filters”, presented a large portion of converter topologies suitable for power quality improvement as active filter. Additionally two tutorials have been devoted to this subject, namely “Tutorial on Matrix Converters” conducted by Prof. Domenico Casadei (University of Bologna, Italy) and “Tutorial on Multilevel Converters” given by Jose Rodriguez (Technical University of Federico Santa Maria, Chile). Both tutorials have provided theoretical as well as practical knowledge about topologies, classification methods and control ideas. Discussions and advantages and disadvantages also took place. The hall was full of students during both tutorials.. As regards the regular conference meetings, one lecture session devoted to converters and components subject was held (chaired Dr. Mietek Nowak), containing four, selected most interesting papers listed below: • FIVE LEVEL INVERTER TOPOLOGY FOR IM DRIVE WITH DC LINK CAPACITOR VOLTAGE BALANCING AND COMMON MODE VOLTAGE ELIMINATION IN COMPLETE MODULATION RANGE P. N. Tekwani, R.S. Kachan, K. Gopakumar, CEDT Indian Institute of Science INDIA • FREQUENCY CONVERTER PARALLELING USING A STEP UP THREE PHASE TRANSFORMER WITH MULTIPLE PRIMARIES A. Lipsanen, Marko Kettunen, Juha Pyrhonen, Pertti Silventoinen Lappenranta University of Technology FINLAND • DYNAMIC VOLTAGE RISE CONTROL, THE MOST EFFICIENT WAY TO CONTROL TURN –OF SWITCHING BEHAVIOUR OF IGBT TRANSISTORS P. Luniewski, U. Jansen, M. Hornkamp Eupec GmbH , GERMANY • ACTIVE FLICKER COMPENSATION IN MEDIUM VOLTAGE LINES USING MULTILEVEL CONVERTERS G. Buja, S. Castellan, University of Trieste ITALY Some interesting presentations devoted to converter topologies were presented during the WATAB sesions: • DOUBLE INVERTER AS MULTILEVEL: CIRCUIT TOPOLOGY, MODULATION STRATEGIES AND APPLICATIONS D. Casadei, G. Grandi, A. Lega, C. Rossi University of Bologna Italy. • INVESTIGATION ON THE CONTROLLABILITY AND THE DE- SIGN OF DC/DC CONVERTERS CONNECTED TO PV- GENERATORS C.P. Dick, K. Rigbers, H. Radermacher, R. W. De Doncker RWTH Aachen University, GERMANY • DIGITALLY CONTROLLED INTERFACE BETWEEN SUPER- CAPACITOR ENERGY STORAGE AND DC LINK M. Nowak, J. Hildebrandt, J. Rabkowski, R. Barlik Warsaw University of Technology POLAND Mr Łuniewski representing Eupec – company answering a question regarding his presentation during the “Components and Converters” lecture session • ANALYSIS OF IGCT TURN ON TRANSIENTS IN CIRCUIT CONFIGURATION WITH SERIES CONNECTED DIODES S. Tchirley, S. Bernet Technische Universitat Berlin Among the 24 papers presented during two dialog sessions, the following can be pointed as standing out because of their up-to-date subjects: • OVERMODULATION IN MATRIX CONVERTERS J. Rząsa University of Technology Rzeszów POLAND • A REVIEW ON MATRIX CONVERTERS D. Casadei, G. Serra, A. Tani L. Zarri; University of Bologna ITALY. • BI-DIRECTIONAL HIGH EFFICIENT DC/DC CONVERTER FOR EV APPLICATIONS J. Lastowiecki, A. Witkowski, S. Ryzko Warsaw University of Technology POLAND • THE RESONANT DC/AC AND DC/DC BOOST CONVERTER S. Jalbrzykowski, T.Citko Bialystok University of Technology, PO- LAND • A THREE LEVEL NON ISOLATED BI-DIRECTIONAL DC/DC CONVERTER DESIGNED TO CONTROL 50 KW ULTRACA- PACITOR TANKS M. Yu, Z. Liang, B. Zeng Shen Yang University of Technology CHINA • COMPARISON OF POWER SEMICONDUCTOR UTILISATION AND LOSSES OF 2,3 KV AND 4,16 KV NEUTRAL POINT CLAMPED, FLYING CAPACITOR AND SERIES CONNECTED H-BRIDGE MULTILEVEL CONVERTERS S.S. Fazel, D. krug, S. Bernet Technische Universitat Berlin, GERMANY. Mieczysław Nowak 4 PELINCEC Newsletter, No.9 Autumn 2005
Working Group 3 has prepared an oral session, a poster session and a dialog session for this conference. All together 28 papers. The papers covered a broad spectrum of topics from the Intelligent Control and Signal Processing area. Professor Stan Żak (Purdue University, USA), a well-known scientist in Control and Neural Networks area presented new development in the Brain-State-in-a-Box model. One may say that almost traditionally his co-author was Stefen Hui (San Diego State University, USA) and, less traditionally, a Ph.D. student Cheolhwan Oh. There was another paper at the poster session corresponding to that subject, presented by Krzysztof Starczewski. He applied this theory to spoken digits recognition. Working Group 3 — Intelligent Control and Signal Processing We found highly sophisticated control theory in Professors Kirillova (Belarus), Kaczorek and Busłowicz papers. They were devoted to optimal real-time control for dynamical systems under uncertainty, realization problem for positive multi- variable discrete-time systems with delays and robust stability of scalar positive discrete–time linear systems with delays. Many other topics in control theory, including ob- servability (Kociszewski, Trzasko), reachability (Nguyen, Kaczorek), digraph theory (Markowski), Linear Matrix Ine- qualities (Koziński, Twardy), stability (Busłowicz), switched differential linear repetitive processes (Bochniak, Gałkowski, Rogers) were also present. Two papers from Łódź discussed fuzzy models (Kabziński, Jastrzębski), one evolutionary computation applied to pro- duction scheduling for heat and power plant from Gdynia (Dziedzicki, Śmierzchalski). Several interesting contributions came from signal processing domain. They were devoted to old motion pictures resto- ration (Skoneczny), wavelet based techniques for object de- tection in robot vision system (Choraś), stereo matching for robotics vision (Andrysiak, Choraś), some spectral properties of nonlinear transformations (Kubowicz) and others. WG3 group contribution could not be completed unless we add several other topics including identification (Tarasiewicz, Świercz, Kłosiński), SVM networks for organizing data (Jurczak), LEGO control (Gąsowski), Hermites polynomials in neural networks (Beliczyński), optimal control (Yarmosh) and various control practice and algorithms experience (Skowronek, Walczak, Kłosiński, Kacerka). We have enjoyed a good atmosphere created by the interesting presenters, their papers, by well organized conference framework and the wonderful architecture of the Warsaw University of Technology Main Building. Working Group 4 — Industrial Information Technology It is not so easy to define precisely the area of Industrial Information Technology. Information technology is so overwhelming these days and it encompasses so many different application areas. Therefore, it is justified to say that industrial information technology may include such seemingly A discussion during the WG4 Dialog Session. remote topics as image processing and recognition, modeling and simulation, control, decision support and failure de- Bartłomiej Beliczyński tection to name just a few. This diversity has been reflected by a very broad scope of papers submitted to Industrial Information Technology track of the PELINCEC 2005 conference. Over twenty papers have been submitted in this area. Sixteen of them were accepted for presentation. The four most interesting papers have been presented during oral session (see below) and the rest during the dialog session. The aim of the lecture session chaired jointly by Prof. Gaby Neumann (Otto von Guericke University of Magdeburg, Germany) and Prof. Andrzej Dzieliński (Warsaw University of Technology), was to present a sample of those very different subjects which may be placed under the umbrella of Industrial Information Technology. The paper presented by Dr L. Saganowski from University of Technology and Agriculture in Bydgoszcz has given the flavor of image processing applications in modern technology. Two other papers presented by Dr M. Behr from a power distribution company GZE S.A. and by Prof, G. Neumann from University of Magdeburg, dealt with the use of modeling and simulation techniques in network assets management and virtual training environment respectively. Finally, the last paper in the session has discussed an IT framework for power systems management. The session had quite a significant number of attendees who took an active part in the questions and comments time. Autumn 2005 PELINCEC Newsletter, No.9 5
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PELINCEC 2005 - Politechnika Warszawska

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