- Type of paper
: Book
Title: Fiber optics technology
- Authors:
- Brodić, T.
- Jurin, Goran (195734)
Publisher: Tehnički fakultet Sveučilišta u Rijeci
ISBN: 953-6326-03-5
Year: 1995
Number of pages: 208
Language: hrvatski
Summary: Optical fibers and cables, optical sources, optical
transmitters, optical detectors, optical receivers, passive optical
components and measurements on components of optical transmission systems
are described.
Special consideration is given to optical transmission systems with direct
reception, with coherent reception, and to optical networks.
Examples of applications of optical fibers in telecommunications are given
at the end of the book.
Keywords: optical fiber, optical cable, light source, light detector
- Type of paper
: Paper in journal
Title: Model for calculation of the process information restoring
times in the control centers of an electric power system
- Authors:
- Šimunić, Juraj (157530)
Journal: Energija
Number: 1
ISSN: 0013-7448
Volume: 42
Year: 1993
Pages: from 15 to 22
Number of references: 18
Language: hrvatski
Summary: A model of process information events of electric power
stations is worked out, whereby process information are defined by points
in the space. The model is used for the computer calculation of process
events restoring times.
Keywords: electric power system, process information event, restoring time, model
- Type of paper
: Paper in journal
Title: Correlation analysis for electrical power system
information in real time
- Authors:
- Šimunić, Juraj (157530)
Journal: Energija
Number: 4
ISSN: 0013-7448
Volume: 40
Year: 1991
Pages: from 223 to 230
Number of references: 12
Language: hrvatski
Summary: Information flows in real time in an electrical power
system are random and can be described by random variables. As an
information source, electrical power substations can be described using a
number of random variables for corresponding informational events. The
procedure for determining the stochastic dependence of these random
variables in presented as well as the research results in an actual power
system.
Keywords: power system, process information, random variable, stochastic dependence
- Type of paper
: Paper in journal
Title: Stochastic changes analysis of a power system substation
information states
- Authors:
- Šimunić, Juraj (157530)
- Jurasić, Katica
Journal: Energija
Number: 3
ISSN: 0013-7448
Volume: 41
Year: 1992
Pages: from 145 to 150
Number of references: 13
Language: hrvatski
Summary: During the operation of a power system substation
information occure stohasticaly. Based on a wide range of research, the
paper defines the empirical frequency distribution for the change of the
information state of characteristic substation parts. Approximation
procedure is done for emphirical distributions using adequate theoretical
functions in the form of selected polynomials of n-deegres.
Keywords: power system substation, information, frequency distribution, approximation
- Type of paper
: Paper in journal
Title: Models for the needs of automatic electric power system
control
- Authors:
- Valenčić, Mirko (157541)
Journal: Energija
Number: 2
ISSN: 0013-7448
Volume: 42
Year: 1993
Pages: from 69 to 76
Number of references: 21
Language: hrvatski
Summary: The basics of electric power systems identification by
transmission functions are presented, and the possibilities that are
herewith created for cybernetic models used for automatic control in a real
time.
Keywords: power system, automatic control, model
- Type of paper
: Paper in journal
Title: Consumption characteristics by electric power system state
changes
- Authors:
- Valenčić, Mirko (157541)
Journal: Energija
Number: 2
ISSN: 0013-7448
Volume: 41
Year: 1992
Pages: from 95 to 103
Number of references: 21
Language: hrvatski
Summary: The problem field of the consumption characteristics
determination and its influence on the electric power system transient
states are presented.
Keywords: power system, comsumption characteristics, state change
- Type of paper
: Paper in journal
Title: Analaysis of electrical power system events by means of
modular informational structure
- Authors:
- Šimunić, Juraj (157530)
Journal: Energija
Number: 1
ISSN: 0013-7448
Volume: 43
Year: 1994
Pages: from 12 to 25
Number of references: 14
Language: hrvatski
Summary: The usage of process in a real time and out of it is a very
complex but also an important segment of the electric power system
automatic control. In this work, based on a one year process information of
a real-time system, themodular model of information observation is worked
out, by means of which the analysis of time correlation and frequency of
information appearance for the chosen modules by location, type and name is
carried out.
Keywords: electric power system, process information, modular structure, research of real-time
- Type of paper
: Paper in journal
Title: Model for process information stohastic dependence
analysis of Power System
- Authors:
- Šimunić, Juraj (157530)
Journal: Pannonian Applied Mathematical Meeting - Bulletin for
Applied Mathematics, Budapest
Year: 1995
Number of references: 9
Language: engleski
Summary: Process information apper accindentally in operation and
with various dynamics which is essential to methodlogy of survey and
operating personnel demand in system controlling centres. Suitable process
information data base has been formed for a real
remote control center during the period of one year. Stohastic model and a
programm for empirical and linear correlation has been elaborated and time
dependence research has been done for the information from various plant
locations and various kinds of information.
Keywords: power system, process information, time stohastic dependence
- Type of paper
: Paper in journal
Title: MSSI - Modular structure of stohastic process information
for Power system control
- Authors:
- Šimunić, Juraj (157530)
Journal: CIT
Volume: 4
Year: 1996
Summary: A model of the process information events of electric
power stations is worked out, whereby process information are defined by
points in the space. In the paper both the space of elementari events and
the space of electric power system probabilites proces information are
presented on the level of components as well as on the level of the whole
system. The process information group with n-dimensional random values is
described, end then a method for transforming the n-dimensional random
values is presented by means of the function D into one dimensional space.
The model is used for the computer calculation of process events restoring
times.
Keywords: power system model, process information, stohastic value
- Type of paper
: Paper in proceedings
Title: Information events represented by dots in space
- Authors:
- Šimunić, Juraj (157530)
- Editors
- Perić, Nedjeljko
Proceedings title: 38. Međunarodni skup KOREMA
Language: hrvatski
Place: Zagreb
Year: 1993
Pages: from 491 to 494
Meeting: IV Međunarodni simpozij o novim tehnologijama
Held: from 04/26/93 to 04/28/93
Summary: The subject of this article is model formed so that its
information has been represented by dots in space and by module eleborated
plant structure. Presented structure render possible efficent setting of
correlating relaations and selective process data disply as well as
aplication of expert automatic actions in controlling systems. The model
can be applied in modern distributed and classically centralized solutions
of process microcomputer systems.
Keywords: informational envents - space representation
- Type of paper
: Paper in proceedings
Title: Process information time dependence analysis of power
plant
- Authors:
- Šimunić, Juraj (157530)
- Golik, Davor
- Editors
- Cvetković, Zorko
Proceedings title: I Savjetovanje Hrvatskog komiteta CIGRE
Language: hrvatski
Place: Zagreb
Year: 1993
Pages: from 73 to 84
Meeting: CIGRA
Held: from 10/10/93 to 10/13/93
Summary: Process information appear accidentally in operation and
with various dynamics which is essential to methodology of survey and
operating personnel demand in system controlling centres. Suitable process
information data base has been formed for a real remote control center
during the period of one year. A programm for empirical and linear
correlation has been elaborated and time dependence research has been done
for the information from various plant - location and various kinds of
informations.
Keywords: power plants, process information, time dependence
- Type of paper
: Paper in proceedings
Title: Computer and process instrumentation and statistical
methods for model development in electric power system
- Authors:
- Valenčić, Mirko (157541)
- Editors
- Szabo, Stjepan A.
Proceedings title: IV Međunarodni simpozij o novim tehnologijama
Language: hrvatski
Place: Zagreb
Year: 1993
Pages: from 63 to 66
Meeting: IV Međunarodni simpozij o novim tehnologijama
Held: from 10/25/93 to 10/27/93
Summary: Eficiency and adaptability computer control in electric
power system especially for automatic dispatch control application is
possible with algorithms and adequate equipment for model identification of
objects and parts of electrical power system. This paper presents a general
view of power elements identification in electric power system and tasks of
computer and other equipment for making th adequate models.
Keywords: statistical methods, model, power system
- Type of paper
: Paper in proceedings
Title: Reduction factor of telecommunication cable with outern
insulation
- Authors:
- Jurin, Goran (195734)
- Editors
- Cvetković, Zorko
Proceedings title: XX Savjetovanje Elektroenergetičara Jugoslavije (CIGRE)
Language: hrvatski
Place: Neum, BIH
Year: 1991
Pages: from 0 to 0
Meeting: CIGRA
Held: from 04/05/91 to 04/07/91
Summary: In this paper all relevant factors affecting reduction
factor value of laid telecommunicatin cable with insulated sheath are
analysed in detail. Transmission parameters of homogeneous/nonhomogeneous
earth as return conductor are also analysed and taken into account. With
the aid of developed software tools all factors influencing secondary
transmission parameters of transmission system composed of cable sheath and
earth as a return conductor are investigated.
Keywords: reduction factor, telecommunication cable, transmission parameters, insulated sheath
- Type of paper
: Paper in proceedings
Title: Power system process information flows for power control
system
- Authors:
- Šimunić, Juraj (157530)
Proceedings title: Prvi simpozij o sustavu vođenja EES-a HEP-a
Language: hrvatski
Place: Cavtat, Hrvatska
Year: 1994
Pages: from 1 to 17
Meeting: Prvi simpozij o sustavu vođenja EES-a HEP-a
Held: from 10/16/94 to 10/19/94
Summary: The work contains a description of momentary status of
proces information flows (PIF) orientated on conception of choosing the
criteria of transportation and application processing. In the second part
the influence of coordinated microprocessor stations, new media of
transport and new organization of HEP on conception of PIF organization is
contemplated, and the third part contains a retrospection of using the
process informations in technical information system(TIS).
Keywords: power system, process information, energy management system, technical information system
- Type of paper
: Paper in proceedings
Title: Statistical analysis of process information for RCC-Pehlin
- Authors:
- Šimunić, Juraj (157530)
- Padjen, D.
Proceedings title: CIGRE - Drugo savjetovanje, Sekcija III - mreže
Language: hrvatski
Place: Šibenik
Year: 1995
ISBN/ISSN: 953-6408-03-1
Pages: from 561 to 570
Meeting: Drugo savjetovanje međunarodne konferencije za velike električne mreže HK-CIGRE
Held: from 05/14/95 to 05/18/95
Summary: The dynamic characteristics of the process informations of
a remote control center, for two years period , have been described in this
work. You can find the entering parametars in the first part of the review,
where the process has been given. The results
of the inqiury on the real electric power system have been presented in the
second part.
Keywords: remote control centre, process information, statistic
- Type of paper
: Paper in proceedings
Title: Efforts for improvment of governability for electrical
power system
- Authors:
- Valenčić, Mirko (157541)
- Editors
- Velebir, Vesna
Proceedings title: CIGRE - Drugo savjetovanje, Sekcija III - mreže
Language: hrvatski
Place: Šibenik
Year: 1995
ISBN/ISSN: 953-6408-03-1
Pages: from 577 to 582
Meeting: Drugo savjetovanje međunarodne konferencije za velike električne mreže HK-CIGRE
Held: from 05/14/95 to 05/18/95
Summary: In this paper is given generally overview of the condition
in Electrical power system specially in domain of measurements,
registrations of events, local automatics and relay protection of system,
same governing actions in transient conditions and unfavorable changed
characteristics of power equipment. Given is also in principle overview of
future development and a necessary efforts for modernisation of power
plants for principal very important task to raise governability and
vitality of Electrical power systems in abnormal conditions.
Keywords: electrical power system, local automatic, regulation, relay protection
- Type of paper
: Paper in proceedings
Title: Discrete probability distribution of process information
in induced probability range
- Authors:
- Šimunić, Juraj (157530)
- Jurasić, Katica
Language: njemački
Place: Krakow, Poljska
Year: 1995
Meeting: 6th International DAAAM Symposium "Intelligent Manufacturing Systems"
Held: from 10/26/95 to 10/28/95
Summary: The units of processed information of various technical
systems have mainly stochastic values and they are favourably presented
modularly by distribution components of system and by type of information
by which this plant is described. Components moduli and type moduli which
represent source of process information, can be described by n-random
variables.
In real technical system it is necessary to observe all information moduli
at the same time, so it is necessary to transform n-dimensional probability
range in one-dimensional induced probability range by using combinations
and probability theory. In this paper procedure for realising discrete
induced probability range is described for quantitative observation of
process information in various locations and types.
Keywords: process information, stochastic value, induced probability range
- Type of paper
: Ph.D.
Title: Model of stochastic process data of power system
Faculty: Elektrotehnički Fakultet Sveučilište u Zagrebu
Date of defense: 07/11/91
Language: hrvatski
Number of pages: 205
Summary: Proces data flow, relized by process computer systems and
data communication networks, are the basis of present technical control
systems of electrical power system. The stochastical model of process data
flows from their origine in the power plants to their use in the remote
control centers is defined. First the set of process data and their events
is modelled at the level of electric power plants. The basis of the model
are functional and informational modules structured threedimensionaly. The
space of elementary events is defined together with algebra of events and
probability space of process data events.
To achieve the modularity of the model the discrete probability
distributions of the level of functional-informational submodules are
defined. Next n-dimensional random variable is mapped into one-dimensional
probability space. The elements of the range of this function are discrete
probability distributions at the level of electric power plants. The model
of stochastic process data is based on the statistical research of the
real-time data, acquired by microprocessor units in the power plants.
The research included 20 electric power plants with more then 200
functional modules. In approximately 7400000 five second time intervals
50000 dynamic process data is processed. The computer programme for
calculating the dynamics and the time ofthe refreshment of process data in
the remote power system control centers is given at the end of the thesis.
Keywords: power system, process information, stochastic events, model
- Type of paper
: M.A.
Title: Hidden failures in probability analysis of protection
system reliability
Faculty: Elektrotehnički Fakultet Sveučilište u Zagrebu
Author: ADLER NEVENKA
Date of defense: 03/17/93
Language: hrvatski
Number of pages: 101
Summary: Protective relay system failures till power system fault
appears and protection system maloperates. Unknown duration of hidden
failures makes probability analysis of protection system reliability
complex.
Firstly, the operation functions of protection system are introduced, and
various quality indexes of reliability are defined. The hidden failures are
completely identified, and the reliability of the protective system
equipment encounters power system faults can be evaluated by so called
operational reliability. Therefore the mathematical model for operational
reliability evaluation is introduced. The first simple model is developed
in steps by adding the parameters. The influence of each parameter on
operational reliability is anlysed.
As a method for detection hidden failures model includes manual periodic
protective system testing and analysis during power system faults.
Automatic built-in self-chacking of protective system is also briefly
mentioned.
Keywords: power system, protection system, protection system reliability, automatic built-in self-checking
- Type of paper
: Survey/Study
Title: Analysis of process information refreshment time in remote
conntrol centers and republic dispatching center ZEOH
- Authors:
- Šimunić, Juraj (157530)
- Babić, Tedi
- Grbac, Željko
Ordering party: Hrvatska Elektroprivreda
Institution depot: Hrvatska Elektroprivreda
Year: 1991
Number of pages: 302
Language: hrvatski
Keywords: power system, process information, refreshing time