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Kaluder S.,HEP Group | Sljivac D.,Elektrotehnicki Fakultet Osijek | Miletic S.,HEP Group
Tehnicki Vjesnik

The distributed generation within the distribution and low voltage network is a result of decentralizing electrical power production by introducing the electricity market as well as trying to reduce the greenhouse effect. A new optimum solution has to be found while planning the electro energetic system which includes building new production capacity, a new network and expansion of reactive capacity. The benefits that can be obtained from this optimum solution are of economical, technical and ecological nature. Analytical methods have proven less successful in dealing with nonlinear optimization problems. Evolution algorithms have proven most applicable onto real systems. The aim of this project is to determine the location and the capacity of distributed generation by using genetic algorithms at feeder 10 kV Strizivojna Hrast. The given results have determined the optimum locations and capacity in the 10 kV Strizivojna Hrast feeder. Source

Crnkovic D.,HEP Group | Sljivac D.,Elektrotehnicki Fakultet Osijek | Stojkov M.,Strojarski fakultet Slavonski Brod
Tehnicki Vjesnik

For the purpose of a comprehensive review of power system operation with the connection of wind power plants, this review is presented in two articles. The first article presents the main concepts of wind power plants, technical possibilities of wind power plant operation and all requested criteria for connecting the wind power plant to the power system. In the second article the power quality after connecting wind power plant to the distribution network, energy losses in distribution network with connected wind power plant and feasibility and development of electrical energy production with wind power plants in the power system of the Republic Croatia are considered. Source

Simundic S.,Pravni fakultet Split | Franjic S.,Elektrotehnicki Fakultet Osijek | Susic T.,Zavod Za Informatiku
Proceedings Elmar - International Symposium Electronics in Marine

The development of computer development, unfortunately, and abuse of computers, or abuse of data and information that are processed modern information technologies. The mass use of computers in different circumstances, with the increasing use of telecommunication equipment by increasing the number of users, enables a growing number of thieves, and unauthorized persons (hacker) to break through the protective codes of authorized users and their joining the system creates a lot of damage and cause unforeseeable consequences. Developed methods of protection, which prevent unauthorized use of insurance on the basis of confidentiality. The paper will show the modern information technologies to protect data and information with special emphasis on their legal protection. Use of modern information technology enables the collection and processing large amounts of data from various different areas of human activity. Source

Simundic S.,Pravni fakultet Split | Franjic S.,Elektrotehnicki Fakultet Osijek | Barbaric D.,Pravni fakultet Split
Proceedings of the 11th International Symposium on Operational Research in Slovenia, SOR 2011

Modern information and computer technology has made a series of socially unacceptable behavior that is needed to adequately criminalized. This was done in Croatia on several occasions through the Law on Amendments to the Penal Code in which they built the Convention on Cybercrime. The Convention on Cybercrime, describes a large number of crimes in the area of information and computer technologies, however, this article deals with the elaboration of the most widespread manifestations of them, and that they are crimes which are under the common denominator-the methods of manipulating computers, though, regarding the prevalence, or other crimes are not negligible. Source

Nikolovski S.,Elektrotehnicki Fakultet Osijek | Klaic Z.,Elektrotehnicki Fakultet Osijek | Kraus Z.,Elektrotehnicki Fakultet Osijek | Stojkov M.,Strojarski fakultet Slavonski Brod
MIPRO 2010 - 33rd International Convention on Information and Communication Technology, Electronics and Microelectronics, Proceedings

This paper presents a helpful approach for evaluation of electric and magnetic fields inside 400/110 kV, 110/10 kV and 35/10 kV transformer substations. Due to the fact that the geometry of the substation elements is complex, it was necessary to apply a three-dimensional approach to the computation and analysis of the electromagnetic field. Computations of electromagnetic fields were conducted for quasi-static states of electrical values at a power frequency of 50 Hz. Results of the performed calculations are good enough compared to the complex and expensive measurements according to Croatian regulations. Source

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