- Type of paper
: Paper in journal
Title: Steady State Calculation of Transmission Network by
Renormalization of State Variables
- Authors:
- Bodlović, Petar
- Nemec, Darko (132335)
Journal: Energija
Number: 1
ISSN: 0013-7448
Volume: 1
Year: 1992
Pages: from 27 to 32
Number of references: 5
Language: hrvatski
Summary: The paper presents a method of steady state calculation
inelectrical networks, using coordinated complex renormalization ofstate
variables and network parameters. A physical interpretationis given and
numerical aspects of introduced transformation areanalysed and validated by
test results.
Keywords: Power flows, state estimation, electric power system analysis
- Type of paper
: Paper in journal
Title: Electric power system interaction investigation using
elctro-mechanical sensitivity mode with regard to the relevant parameters
- Authors:
- Mehmedović, Muharem (30290)
- Stojsavljević, Milan (45061)
- Nemec, Darko (132335)
- Vargović, Emil
Journal: Energija
Number: 5
ISSN: 0013-7448
Volume: 5
Year: 1993
Pages: from 319 to 322
Number of references: 8
Language: hrvatski
Summary: The electric power system interaction in the frame of
dynamicstability could be explored by ranging the sensitivity of
theelectro-mechanical mode of the synchronous generator with regardto the
relevant parameters, as for unit inertia constant ortransient reactance.
Some important results regardingconfiguration of an electric power system
will be shown anddiscussed.
Keywords: Electric power systems, interaction investigation, electromechanical oscillations, relevant parameters
- Type of paper
: Paper in proceedings
Title: Method for improved calculation of single-line-to ground
fault currents along the high voltage transmission lines
- Authors:
- Nevečerel, Davor (4399)
- Nemec, Darko (132335)
Proceedings title: Zbornik radova I. savjetovanja Hrvatskog komiteta CIGRE
Language: hrvatski
Place: Zagreb
Year: 1993
Pages: from 415 to 423
Meeting: I. savjetovanje Hrvatskog komiteta CIGRE
Held: from 10/10/93 to 10/13/93
Summary: In the article an improved method of calculation of
short-circuitcurrents due to single line faults along the
high-voltagetransmission lines of the Croatian electric power system
ispresented.
Keywords: Calculation, short-circuit current, transmission line
- Type of paper
: Ph.D.
Title: IDENTIFICATION OF PARAMETERS OF EXCITATION CONTROL SYSTEMS
OF SYNCHRONOUS MACHINES
Faculty: Elektrotehnički fakultet Sveučilište u Zagrebu
Author: MEHMEDOVIĆ MUHAREM
Date of defense: 03/09/95
Language: hrvatski
Number of pages: 255
Summary: The parameters of excitation control system of synchronous
hydro and turbo machines (ECSSM) are identified on the basis of measured
response data in load and no-load conditions. The output vector is
constituted from usually measured variables during unit control system
testing: generator voltage, excitation voltage and current deviations
(no-load) and active and reactive power and shaft speed deviations (load
conditions). This vector is concerned to be the system response on input
signal introduced in the automatic voltage regulator reference. The
magnitude of input signal is chosen so that the deviation of measured
output variables remain in the range of normal operation deviations in
order to assure the nondestructiveness of the metod. The nonparametric and
parametric identification approaches are exploited. As parametric
identification method based on general ARMAX and state space models are
applied. To obtain the constitutive parameters of physical different order
models of ECSSM the identification method based on sensitivity functions
and parameter constrained optimization has been developed and applied. All
results of the concrete ECSSM identifications and paramater estimation are
presented graphically and quantified by means of different modelling
quality indices.
Keywords: electric power systems, synchronous machines, excitation control systems, system model, system identification, parameter estimation
- Type of paper
: Computer program
Title: Synchronous starting "back to back" - MAINBACK
- Authors:
- Mehmedović, Muharem (30290)
Odering party: Institut za elektroprivredu i energetiku, Avenija Vukovar 37, Zagreb
Institution depot: Institut za elektroprivredu i energetiku, Avenija Vukovar 37, Zagreb
HW platform: 486
Operating system: DOS
Programming language: MATLAB /DOS
Year: 1992
Summary: The program enables the investigation of influence of
excitation current value and generator-motor excitation currents ratio,
armature active resistance, time law of generator torque and initial rotor
angle positions on the successfullness of " back to back" synchronous
starting up (motor).
Keywords: Synchronous machines, synchronous starting "back to back"
- Type of paper
: Computer program
Title: Selected harmonics calcualtion - HARITLEY
- Authors:
- Mehmedović, Muharem (30290)
Odering party: Institut za elektroprivredu i energetiku, Avenija Vukovar 37, Zagreb
Institution depot: Institut za elektroprivredu i energetiku, Avenija Vukovar 37, Zagreb
HW platform: 486
Operating system: DOS
Programming language: MATLAB /DOS
Year: 1993
Summary: In the cases, when there is no need to calculate all
harmonics within prescribed band (usually implemented as FFT or FHT), it is
convenient to modify slightly the existing methods in the sense of LS
(Least Squares) and to calculate selected harmonics only. The program is
based on (real) Hartley transformation.
Keywords: Fourier transform, Hartley transform
- Type of paper
: Computer program
Title: Excitation control system parameter identification based
on sensitivity functions - VARPHP & VARMR
- Authors:
- Mehmedović, Muharem (30290)
Odering party: Institut za elektroprivredu i energetiku, Avenija Vukovar 37, Zagreb
Institution depot: Institut za elektroprivredu i energetiku, Avenija Vukovar 37, Zagreb
HW platform: 486
Operating system: DOS
Programming language: MATLAB /DOS
Year: 1991
Summary: The excitation control (observable) system parameters can
be identified on the basis of uncomplete output measurement and sensitivity
functions for load and no-load operation ofsynchronous machine.
Keywords: Synchronous machines, excitation control systems, parameter identification, sensitivity functions
- Type of paper
: Computer program
Title: Program for the integration of first order differential
equations with continuously adaptive integration step - RK2_REGK
- Authors:
- Mehmedović, Muharem (30290)
- Nemec, Darko (132335)
Odering party: Institut za elektroprivredu i energetiku, Avenija Vukovar 37, Zagreb
Institution depot: Institut za elektroprivredu i energetiku, Avenija Vukovar 37, Zagreb
HW platform: 486
Operating system: DOS
Programming language: FORTRAN '77
Year: 1993
Summary: The program for integration of first order differential
equations, based on 2nd order Runge-Kutta method has been developed. During
the simulation the integration step is continuously adapted to achieve
prescribed accuracy. RK2_REGK has been tested on high order nonlinear
systems.
Keywords: Differential equations, integartion step, Runge-Kutta 2nd order method
- Type of paper
: Computer program
Title: Choice of sampling interval for linear continuous systems
- SAMPLINT/WSAMPLIN
- Authors:
- Mehmedović, Muharem (30290)
Odering party: Hrvatska elektroprivreda, Avenija Vukovar 37
Institution depot: Institut za elektroprivredu i energetiku, Avenija Vukovar 37, Zagreb
HW platform: 486
Operating system: DOS
Programming language: MATLAB /DOS
Year: 1993
Summary: The program for corresponding sampling interval calculation
is implemented. The sampling interval calculation is based on maximum
system eigenvalue, bilinear transformation and certain distance criterion.
Keywords: System, sampling interval, eigenvalues
- Type of paper
: Computer program
Title: Calculation of eigenvalues elasticities of linearized
synchronous machine model - ELASVOV
- Authors:
- Mehmedović, Muharem (30290)
Odering party: Hrvatska elektroprivreda, Avenija Vukovar 37
Institution depot: Institut za elektroprivredu i energetiku, Avenija Vukovar 37, Zagreb
HW platform: 486
Operating system: DOS
Programming language: MATLAB /DOS
Year: 1993
Summary: Program for calculation of linearized synchronous machine
eigenavlue elasticities (normalized sensitivities) with respect to the
choosen parameters is implemented.
Keywords: Synchronous machines, eigenvalues, sensitivities, elasticities
- Type of paper
: Computer program
Title: Computer program for identfication of excitation control
system parameters - SENIDE
- Authors:
- Mehmedović, Muharem (30290)
Odering party: Institut za elektroprivredu i energetiku, Avenija Vukovar 37, Zagreb
Institution depot: Institut za elektroprivredu i energetiku, Avenija Vukovar 37, Zagreb
HW platform: 486
Operating system: DOS
Programming language: MATLAB/DOS
Year: 1994
Summary: The excitation control (observable) system parameters can
be identified on the basis of uncomplete output measurement and sensitivity
functions for load and no-load operation of synchronous machine. SENIDE is
refined and generalized version of VARMR and VARPHP computer programs.
Keywords: Synchronous machines, excitation control systems, parameter identification, sensitivity functions
- Type of paper
: Computer program
Title: Recursive and nonrecursive LS state space oriented
identification method of linear systems - MVSIDENT
- Authors:
- Mehmedović, Muharem (30290)
Odering party: Institut za elektroprivredu i energetiku, Avenija Vukovar 37, Zagreb
Institution depot: Institut za elektroprivredu i energetiku, Avenija Vukovar 37, Zagreb
HW platform: 486
Operating system: DOS
Programming language: MATLAB /DOS
Year: 1994
Summary: Computer program for recursive and nonrecursive
identification of a system and control matrix of discretized linear system
is implemented. The identification approach is based on least square of
distance between measured and computed system output. Recursive procedure
can be chosen with and without parameter covariance matrix factorization.
Decimal fraction delay case can be also taken into account.
Keywords: Linear discretized systems, state space, parameter identification
- Type of paper
: Computer program
Title: Recursive instumental variable based identification of
linear discretized system in state space formulation - MVSIDRIV
- Authors:
- Mehmedović, Muharem (30290)
Odering party: Institut za elektroprivredu i energetiku, Avenija Vukovar 37, Zagreb
Institution depot: Institut za elektroprivredu i energetiku, Avenija Vukovar 37, Zagreb
HW platform: 486
Operating system: DOS
Programming language: MATLAB /DOS
Year: 1994
Summary: Computer program for recursive and identification of a
system and control matrix of discretized linear system is implemented. The
identification approach is based on least square of distance between
measured and computed system output and instrumental variable approach.
Decimal fraction delay case can be also taken into account.
Keywords: Linear discretized systems, state space, parameter identification, instrumental variables
- Type of paper
: Computer program
Title: Computer program for spectral analysis of signal by mean
of Prony method - PRONYAN
- Authors:
- Mehmedović, Muharem (30290)
Odering party: Institut za elektroprivredu i energetiku, Avenija Vukovar 37, Zagreb
Institution depot: Institut za elektroprivredu i energetiku, Avenija Vukovar 37, Zagreb
HW platform: 486
Operating system: DOS
Programming language: MATLAB /DOS
Year: 1994
Summary: Computer program for dominant eigenvalues and their
amplitude shares identificatin is implemented. The procedure will be
applied on measured (or calculated) system output (signal) to be assumed as
an impulse system response. The approach is based on Prony method.
Keywords: Linear systems, signals, spectral analysis, impulse response, Prony method
- Type of paper
: Survey/Study
Title: Analysis and estimation of technical and technology state
of HPS "Senj" excitation control system and possible solution to the
revitalization of excitation system
- Authors:
- Stojsavljević, Milan (45061)
- Mehmedović, Muharem (30290)
- Vargović, Emil
- Nemec, Darko (132335)
- Stanković, Đuro
- Momić, Milorad
Ordering party: Hrvatska elektroprivreda, Avenija Vukovar 37
Institution depot: Institut za elektroprivredu i energetiku, Avenija Vukovar 37, Zagreb
Year: 1993
Number of pages: 282
Language: hrvatski
Summary: Energy characteristics of HPS "SEnj". Technology state of
theexisting excitation system. The properties and behaviour ofexcitation
control system (ECS) for all three machines.Mathematical model of the
existing ECS. Possible solutions to therevitalization of HPS "Senj"
excitation control system.Simplified performance line diagram, mathematical
models for theproposed ECS's. Comparative analysis based on transient
anddynamic stability, short-circuit maintenance, behaviour afterload
rejection, response ratio and machine deexcitation.
Keywords: Excitation control systems, revitalization, mathematical models, stability
- Type of paper
: Survey/Study
Title: Direct methods for transient stability assessment
- Authors:
- Mehmedović, Muharem (30290)
- Stojsavljević, Milan (45061)
- Nemec, Darko (132335)
- Maylaender, Julije (132653)
- Konjević, Ešef (114530)
Ordering party: Institut za elektrotehniku KONČAR, Baštijanova bb
Institution depot: Institut za elektrotehniku KONČAR, Baštijanova bb
Year: 1992
Number of pages: 45
Language: hrvatski
Summary: An overview of direct methods for transient stability
assessmentis presented: II Lyapunov method, equal area method,
transientenergy function (TEF) method, Kyoto method and accelerationmethod.
Keywords: Electric power systems, transient stability, direct methods
- Type of paper
: Survey/Study
Title: Investigation and analysis of nonsysmmetric and nonlinear
one phase (25 kV, 50 Hz) railway loading influence along the railway line
Zagreb-Rijeka
- Authors:
- Nevečerel, Davor (4399)
- Mehmedović, Muharem (30290)
- Vargović, Emil
Ordering party: Hrvatske željeznice, Mihanovićeva 12
Institution depot: Institut za elektroprivredu i energetiku, Avenija Vukovar 37, Zagreb
Year: 1993
Number of pages: 188
Language: hrvatski
Summary: An overview of existing regulations and standards pertinent
tononsymmetric and nonlinear loading of elctric power system ispresented.
The nonsymmetric load flow for the predictedrailway traffic is calculated.
Also, the behaviour of 110 kV nodeTS "Resnik" during the starting up the
train along the lineResnik-Žitnjak is identified. The recommendation for
decreasingof nonsymmetric loads connected to 110 kV network along
therailway line Zagreb-Rijeka is given.
Keywords: Nonsymmetric loads, electric networks, load flow
- Type of paper
: Survey/Study
Title: Analysis of control and protection functions of excitation
control systems TE-TO ZAGREB, machine 3, 150 MVA
- Authors:
- Stojsavljević, Milan (45061)
- Mehmedović, Muharem (30290)
- Vargović, Emil
- Nemec, Darko (132335)
- Galić, Damjan
Ordering party: Hrvatska elektroprivreda, Avenija Vukovar 37
Institution depot: Institut za elektroprivredu i energetiku, Avenija Vukovar 37, Zagreb
Year: 1993
Number of pages: 137
Language: hrvatski
Summary: Exploitation experience showed that there were more unit
trips(unit 3, 150 MVA) during the years 1991 and 1992.
Comprehensive measurements with simplified network model andplant
simulation of fault situations have been done. Results ofmeasurement are
processed. The problem is completely studied andsolved with assistance of
HEP and ETF specialists.
Keywords: Control, protection, excitation control systems
- Type of paper
: Survey/Study
Title: Losses and efficiency factor measurement on synchronous
generator G1 120 MVA, HPS "Zakučac"
- Authors:
- Nemec, Darko (132335)
- Juretić, Miroslav
Ordering party: Hrvatska elektroprivreda, Avenija Vukovar 37
Institution depot: Institut za elektroprivredu i energetiku, Avenija Vukovar 37, Zagreb
Year: 1992
Number of pages: 100
Language: hrvatski
Summary: Superposition method of a generator partial losses is
applied.Thelosses measurement is based on calorimetric method,
recommendedin IEC publications (34-2 and 34-2A) and VDE 0530-2.
Thegenerator losses are measured in characteristic load operationpoints.
The methodology of accuracy estimate (upper error bounds)is worked out in
details. The proper attention to the measurementquality assurance has been
payed.
Keywords: Synchronous generators, losses, efficiency
- Type of paper
: Survey/Study
Title: Losses and efficiency factor measurement of synchronous
generator No 2 (B), 80 MVA, HPS "Senj"
- Authors:
- Nemec, Darko (132335)
- Mužny, Josip
- Juretić, Srećko
- Abramović, Bojan
- Juretić, Miroslav
- Selanec, Čedomir
- Martinec, Vladimir
- Blažičko, Ranko
Ordering party: Hrvatska elektroprivreda, Avenija Vukovar 37
Institution depot: Institut za elektroprivredu i energetiku, Avenija Vukovar 37, Zagreb
Year: 1993
Number of pages: 87
Language: hrvatski
Summary: Superposition method of a generator partial losses is
applied.The losses measurement is based on calorimetric method,recommended
in IEC publications (34-2 and 34-2A) and VDE 0530-2.The generator losses
are measured in characteristic operationpoints. Upper mesurements error
bounds are defined. The properattention to measurement quality assurance
has been payed.
Keywords: Synchronous generators, losses, efficiency
- Type of paper
: Survey/Study
Title: Unbalanced loads and higher harmonics in electric power
systems
- Authors:
- Nevečerel, Davor (4399)
- Mehmedović, Muharem (30290)
- Tonković, Zdenko
- Wagmann, Lahorko
- Vargović, Emil
Ordering party: Hrvatska elektroprivreda, Avenija Vukovar 37
Institution depot: Institut za elektroprivredu i energetiku, Avenija Vukovar 37, Zagreb
Year: 1994
Number of pages: 326
Language: hrvatski
Keywords: electric power systems, load flows, unbalanced loads, higher harmonics
- Type of paper
: Survey/Study
Title: Choice of parameters of the main electric equipment of
combined cycle power plant in Zagreb EPS
- Authors:
- Nemec, Darko (132335)
- Mehmedović, Muharem (30290)
- Stojsavljević, Milan (45061)
- Vargović, Emil
Ordering party: Hrvatska elektroprivreda, Avenija Vukovar 37
Institution depot: Institut za elektroprivredu i energetiku, Avenija Vukovar 37, Zagreb
Year: 1994
Number of pages: 118
Language: hrvatski
Keywords: electric power systems, combined cycle power plants, transient stability, dynamic stability, system modeling
- Type of paper
: Survey/Study
Title: Study of technical feasibility of the impact on the
Croatian grid of a new 660 MW site
- Authors:
- Baioni, Paolo
- Nemec, Darko (132335)
- Goran, Jerbić
- Tonković, Zdenko
- Stojsavljević, Milan (45061)
- Mehmedović, Muharem (30290)
- Nevečerel, Davor (4399)
- Radmilović, Božidar
- Košćak, Željko
- Gomez, Roberto
- Ricci, Massimo
Ordering party: CESI Milano
Institution depot: Institut za elektroprivredu i energetiku, Avenija Vukovar 37, Zagreb
Year: 1995
Number of pages: 208
Language: engleski
Keywords: electric power systems, load flows, transient stability, system modeling
- Type of paper
: Survey/Study
Title: TE-TO ZAGREB - Enlargement of existing power plant 2x32 MW
(G1&G2) with two plants in combined cycle (G4&G5)
- Authors:
- Mehmedović, Muharem (30290)
- Stojsavljević, Milan (45061)
- Nemec, Darko (132335)
- Vargović, Emil
Ordering party: Hrvatska elektroprivreda, Avenija Vukovar 37
Institution depot: Institut za elektroprivredu i energetiku, Avenija Vukovar 37, Zagreb
Year: 1995
Number of pages: 60
Language: hrvatski
Keywords: electric power systems, combined cycle plants, excitation control systems, system modeling, dynamic stability
- Type of paper
: Technical report
Title: Report on testing of HPS "Čakovec" excitation control
system - unit 1
- Authors:
- Stojsavljević, Milan (45061)
- Mehmedović, Muharem (30290)
- Nemec, Darko (132335)
- Kovačić, Vladimir
- Trabe, Jože
Ordering party: Hrvatska elektroprivreda, Avenija Vukovar 37
Institution depot: Institut za elektrotehniku KONČAR, Baštijanova bb
Year: 1991
Number of pages: 50
Language: hrvatski
Summary: Insight into excitation control system (ECS) equipment.
Function checking of: supply, control, protection
and monitoring groups. Detailed measuring and testing
of ECS in load and no-load condition by means of
modern computer equipment. ECS properties and automatic
voltage regulator (AVR) reference step response.
Checking of generator voltage setting range.
Field testing of under- and overexcitation limiters.
Tuning of main and auxiliary ECS. Recommendations for
increasing of unit availability and reliability.
Keywords: Excitation control systems, testing, response, tuning
- Type of paper
: Technical report
Title: Report on testing of HPS "Čakovec" excitation control
system - unit 2
- Authors:
- Stojsavljević, Milan (45061)
- Mehmedović, Muharem (30290)
- Nemec, Darko (132335)
- Kovačić, Vladimir
- Trabe, Jože
Ordering party: Hrvatska elektroprivreda, Avenija Vukovar 37
Institution depot: Institut za elektrotehniku KONČAR, Baštijanova bb
Year: 1991
Number of pages: 46
Language: hrvatski
Summary: Insight into excitation control system (ECS) equipment.
Function checking of: supply, control, protection
and monitoring groups. Detailed measuring and testing
of ECS in load and no-load condition by means of
modern computer equipment. ECS properties and automatic
voltage regulator (AVR) reference step response.
Checking of generator voltage setting range.
Field testing of under- and overexcitation limiters.
Tuning of main and auxiliary ECS. Recommendations for
increasing of unit availability and reliability.
Keywords: Excitation control systems, testing, response, tuning
- Type of paper
: Technical report
Title: Report on testing of HPS "Varaždin" excitation control
system - unit 1
- Authors:
- Stojsavljević, Milan (45061)
- Mehmedović, Muharem (30290)
- Nemec, Darko (132335)
- Njegovec, Branko
- Nemčić, Stjepan
Ordering party: Hrvatska elektroprivreda, Avenija Vukovar 37
Institution depot: Institut za elektrotehniku KONČAR, Baštijanova bb
Year: 1991
Number of pages: 76
Language: hrvatski
Summary: Insight into excitation control system (ECS) equipment.
Function checking of: supply, control, protection
and monitoring groups. Detailed measuring and testing
of ECS in load and no-load condition by means of
modern computer equipment. ECS properties and automatic
voltage regulator (AVR) reference step response. Behaviour of ECSafter
sudden load rejection.
Checking of generator voltage setting range and speed.
Field testing of under- and overexcitation limiters.
Tuning of main and auxiliary ECS. Recommendations for
increasing of unit availability and reliability.
Keywords: Excitation control systems, testing, response, tuning
- Type of paper
: Technical report
Title: Report on testing of HPS "Dubrava" excitation control
system - unit 1
- Authors:
- Stojsavljević, Milan (45061)
- Nemec, Darko (132335)
- Maylaender, Julije (132653)
- Šantl, Branko
- Sabolek, Josip
Ordering party: Hrvatska elektroprivreda, Avenija Vukovar 37
Institution depot: Institut za elektrotehniku KONČAR, Baštijanova bb
Year: 1991
Number of pages: 64
Language: hrvatski
Summary: Insight into excitation control system (ECS) equipment.
Function checking of: supply, control, protection
and monitoring groups. Detailed measuring and testing
of ECS in load and no-load condition by means of
modern computer equipment. ECS properties and automatic
voltage regulator (AVR) reference step response. Beaviour of ECSafter
sudden load rejection.
Checking of generator voltage setting range and speed.
Field testing of under- and overexcitation limiters.
Tuning of main and auxiliary ECS. Recommendations for
increasing of unit availability and reliability.
Keywords: Excitation control systems, testing, response, tuning
- Type of paper
: Technical report
Title: Report on testing of HPS "Dubrava" excitation control
system - unit 2
- Authors:
- Stojsavljević, Milan (45061)
- Nemec, Darko (132335)
- Maylaender, Julije (132653)
- Šantl, Branko
- Sabolek, Josip
Ordering party: Hrvatska elektroprivreda, Avenija Vukovar 37
Institution depot: Institut za elektrotehniku KONČAR, Baštijanova bb
Year: 1991
Number of pages: 74
Language: hrvatski
Summary: Insight into excitation control system (ECS) equipment.
Function checking of: supply, control, protection
and monitoring groups. Detailed measuring and testing
of ECS in load and no-load condition by means of
modern computer equipment. ECS properties and automatic
voltage regulator (AVR) reference step response. Behaviour of ECSafter
sudden load rejection.
Checking of generator voltage setting range and speed.
Field testing of under- and overexcitation limiters.
Tuning of main and auxiliary ECS. Recommendations for
increasing of unit availability and reliability.
Keywords: Excitation control systems, testing, response, tuning
- Type of paper
: Technical report
Title: Report on testing of TPS TE-TO "Zagreb" excitation control
system - unit 3, 150 MVA
- Authors:
- Stojsavljević, Milan (45061)
- Mehmedović, Muharem (30290)
- Nemec, Darko (132335)
- Vargović, Emil
- Igerčić, Mijo
- Hlavati, Franjo
Ordering party: Hrvatska elektroprivreda, Avenija Vukovar 37
Institution depot: Institut za elektroprivredu i energetiku, Avenija Vukovar 37, Zagreb
Year: 1992
Number of pages: 103
Language: hrvatski
Summary: Insight into excitation control system (ECS) equipment.
Function checking of: supply, control, protection
and monitoring groups. Detailed measuring and testing
of ECS in load and no-load condition by means of
modern computer equipment. ECS properties and automatic
voltage regulator (AVR) reference step response. Testingand checking of
positive and negative excitation ceiling voltage.
Checking of generator voltage setting range and speed. Testing offrequency
compensator module.
Field testing of under- and overexcitation limiters.
Tuning of main and auxiliary ECS. Recommendations for
increasing of unit availability and reliability.
Keywords: Excitation control systems, testing, response, tuning
- Type of paper
: Technical report
Title: Report on testing of TPS SISAK excitation control system -
unit 1, 247 MVA
- Authors:
- Stojsavljević, Milan (45061)
- Nemec, Darko (132335)
- Mehmedović, Muharem (30290)
- Vargović, Emil
- Zubović, Josip
- Bartolović, Mirko
- Putrić, Nikola
Ordering party: Hrvatska elektroprivreda, Avenija Vukovar 37
Institution depot: Institut za elektroprivredu i energetiku, Avenija Vukovar 37, Zagreb
Year: 1994
Number of pages: 153
Language: hrvatski
Keywords: Excitation control systems, testing, response, tuning
- Type of paper
: Technical report
Title: Report on testing of TPS SISAK excitation control system,
unit 2, 247 MVA
- Authors:
- Stojsavljević, Milan (45061)
- Nemec, Darko (132335)
- Mehmedović, Muharem (30290)
- Vargović, Emil
- Zubović, Josip
- Bartolović, Mirko
- Putrić, Nikola
Ordering party: Hrvatska elektroprivreda, Avenija Vukovar 37
Institution depot: Institut za elektroprivredu i energetiku, Avenija Vukovar 37, Zagreb
Year: 1994
Number of pages: 110
Language: hrvatski
Keywords: Excitation control systems, testing, response, tuning
- Type of paper
: Technical report
Title: Report on testing of TPS EL-TO ZAGREB excitation control
system, unit 2, 37.5 MVA
- Authors:
- Stojsavljević, Milan (45061)
- Mehmedović, Muharem (30290)
- Nemec, Darko (132335)
- Vargović, Emil
- Tkalec, Mirko
- Kožina, Josip
- Stjelja, Krunoslav
Ordering party: Hrvatska elektroprivreda, Avenija Vukovar 37
Institution depot: Institut za elektroprivredu i energetiku, Avenija Vukovar 37, Zagreb
Year: 1994
Number of pages: 109
Language: hrvatski
Keywords: Excitation control systems, testing, response, tuning
- Type of paper
: Technical report
Title: Report on testing of control and protection function of
excitation control system of TPS EL-TO ZAGREB, unit 2, 35.5 MVA, after
fault on January 1994
- Authors:
- Stojsavljević, Milan (45061)
- Vargović, Emil
- Nemec, Darko (132335)
- Mehmedović, Muharem (30290)
- Tkalec, Mirko
- Kožina, Josip
- Stjelja, Krunoslav
Ordering party: Hrvatska elektroprivreda, Avenija Vukovar 37
Institution depot: Institut za elektroprivredu i energetiku, Avenija Vukovar 37, Zagreb
Year: 1994
Number of pages: 77
Keywords: Excitation control systems, protection system, testing, response, tuning
- Type of paper
: Technical report
Title: Report on testing of pump units for water cooling in HPS
SENJ
- Authors:
- Mehmedović, Muharem (30290)
- Stojsavljević, Milan (45061)
- Nemec, Darko (132335)
- Vargović, Emil
- Škrgatić, Dario
- Katalinić, Drago
Ordering party: Hrvatska elektroprivreda, Avenija Vukovar 37
Institution depot: Institut za elektroprivredu i energetiku, Avenija Vukovar 37, Zagreb
Year: 1995
Number of pages: 59
Keywords: Pumps, asynchronous machines
- Type of paper
: Project
Title: REQUIREMENTS AND PERFORMANCE OF EXCITATION SYSTEMS -
QUESTIONNAIRE
- Authors:
- Stojsavljević, Milan (45061)
- Nemec, Darko (132335)
- Mehmedović, Muharem (30290)
Ordering party: CIGRE TASK FORCE 38.01.09
Institution depot: CIGRE TASK FORCE 38.01.09
Year: 1995
Number of pages: 38
Language: engleski
Summary: The intention of this project is to investigate the
state-of-the-art and future trends in the field of power system voltage
control, to define performance requirements for voltage control and
stability enhancement such as: speed of response, ceiling voltage, field
control, other requirements under fault conditions and control of step-up
transformers.
Also, the task is to review method used in specification and performance
verification of excitation systems under different operation conditions
such as: one machine infinit bus, isolated operation or interconnected
operation of the whole electric power system.
Keywords: electric power systems, excitation systems, synchronous machines, questionnaire
Other: Predviđeno trajanje projekta je 2-3 godine i odvija se u
okviru Međunarodnog komiteta za velike električne mreže u Parizu (CIGRE).
Naše (Republika Hrvatska) učešće u radu na projektu osigurava Mr.sc. Milan
Stojsavljević na periodičkim međunarodnim radnim skupvima.
- Type of paper
: Other
Title: Characteristics of thermal power plants with respect to
the electric power system requirements - technical recommendations
- Authors:
- Stojsavljević, Milan (45061)
- Mihalic, Dragutin
- Mehmedović, Muharem (30290)
- Blažičko, Miroslav
- Nemec, Darko (132335)
Type of work: Tehničke preporuke
Language: hrvatski
Keywords: electric power systems, thermal power plants, recommendations
