SVIBOR - Project code: 2-05-274

MINISTRY OF SCIENCE AND TECHNOLOGY

Strossmayerov trg 4, HR - 10000 ZAGREB
tel.: +385 1 459 44 44, fax: +385 1 459 44 69
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Project code: 2-05-274


ELECTROMAGNETIC COMPATIBILITY OF RADIO SYSTEMS AND ELECTRIC TRAINS


Main researcher: ZENTNER, ERVIN (54750)


Assistants
Type of research: basic
Duration from: 01/01/91. to 12/31/94.
Papers on project (total): 56
Institution name: Fakultet elektrotehnike i računarstva, Zagreb (36)
Department/Institute: Department of Radiocommunications and Microwave Engineering
Address: Unska 3
City: 10000 - Zagreb, Croatia
Communication
Phone: 385 (0)1 61 29 712
Fax: 385 (0)1 61 11 396
E-mail: ervin.zentner@fer.hr
Summary: Research work is done on electromagnetic compatibility within one, or between more communication systems, and finally between electric traction system and other sensitive electronic systems. Mathematical models and computer algorithms are being inaugurated, in order to solve particular problems of electromagnetic susceptibility. Special attention is concentrated on non-linear effects in separated elements of the system because this problem tends to become dominant due to the vast growth of radio communication systems. New measuring methods are developed, or already known improved for measuring conducted or radiated interferences. Attempt will be made to define sensitivity and resistance to interference of certain systems, in order to determine spatial and frequency separation between potential interference sources as also their power levels. Studying is made on system parameters, on which depends the figure of merit for EMC characteristics and, simultaneously the quality and through-put of information in radio communication system. Optimization of these parameters refering to electromagnetic susceptibility and information rate is a specific problem for each particular system. Therefore, for some systems it should be tried to solve this important problems systematically.

Keywords: Radiocommunications, Electromagnetic Compatibility (EMC), Electromagnetic Interference (EMI), Shielding, Measurement Technology, Grounding, Filters, Antennas and Propagation, EMC Standards

Research goals: The project is run in two directions. In the first, the research is oriented toward the EMC problems within a system, and in the second toward the inter-system EMC. EMC within a system refers to the analysis of system parameters in order to increase information rate with sufficient quality. In order to enable verification of electromagnetic susceptibility mathematical models and algorithms will be developed. Research will be done on specific measuring methods to verify the effect of all relevant parameters on EM susceptibility. Research on inter-system EMC will be oriented on getting new comprehensions on the problem of electromagnetic susceptibility between electric train and signal-safety and communication systems. Using analysis of electric traction vehicle as a source and electric power lines and plants as transmission paths of interferences, attempt will be made to define sensitivity and resistance of signal-safety and communication systems on interferences and finally to give some marginal values and procedure of achieving electromagnetic susceptibility. Expected contribution would be, on one hand, in creating general scheme for solving EMC problems, and on the other, in connecting parameters which define EMC with parameters defining radiocommunication system quality information rate. In research work on inter-system EMC contribution is expected in creating models of sources, transmission paths and receivers of interferences with the aim to enable making optimal decision which of these three parts needs corrections in order to achive electromagnetic susceptibility. European Community organizes COST project on EMC in which we should be actively involved.

COOPERATION - PROJECTS


  1. Name of project: 2-05-256 POKRETNE RADIOKOMUNIKACIJE-DJELOTVORNOST I ANTENSKI SUSTAVI
    Name of institution: Elektrotehnički fakultet,Zagreb
    City: 10000 - Zagreb, Croatia

  2. Name of project: COST 243 ELECTROMAGNETIC COMPATIBILITY IN ELECTRICAL AND ELECTRONIC APARATUS AND SYSTEMS
    Name of institution: EUROPSKA ZAJEDNICA
    City: Bruxelles, Belgija

COOPERATION - INSTITUTIONS


  1. Name of institution: Institut Končar
    Type of institution: University/Faculty
    City: 10000 - Zagreb, Croatia
Other information about the project.
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