SVIBOR - Papers - project code: 2-07-258

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Published papers on project 2-07-258


Quoted papers: 0
Other papers: 9
Total: 9


  1. Type of paper: Paper in journal

    Title: Switching losses of a GTO-thyristor semiconductor switch

    Authors:
    Kulišić, Ljubomir
    Smajo, Mate
    Brakus, Zoran
    Journal: ELEKTROTEHNIKA 1-2, 1992.
    Number: 1
    ISSN: 0013-5844
    Volume: 35
    Year: 1992
    Pages: from 3 to 10
    Number of references: 9
    Language: hrvatski
    Summary: The paper deals with the mathematical model dynamic states of asemiconductor switch with GTO-thyristor. Calculations andanalysis of current-voltage conditions and switching losses aremade. The results of the computations have been verified bymeasurements.
    Keywords: GTO-thyristor, Losses, Switch turn-off, Matematical model, Measurements, Semiconductor switch, Switching losses, Switch turn-on

  2. Type of paper: Paper in proceedings

    Title: The GTO-switch in four-quadrant controller for electric traction

    Authors:
    Bahun, Ivan (132091)
    Proceedings title: Magistarski rad obranjen na ETF 10.06.1992.
    Language: hrvatski
    Place: Zagreb
    Year: 1992
    Pages: from 1 to 159
    Summary: The GTO-switch operation has been analysed in order to providethe data necessery for its design. The analysis comprises theoperation principles of GTO-switch and qualitative survey ofvoltage and current waveforms at switch components duringswitching. Mathematical analysis per characteristic sequences hasprovided analytical expressions used in switch design. Besidesothers, the expressions for computation of GTO-thyristorovervoltage during turn-off, for computation of peak currentloading during turn-on and for computation of current peaks ofthe capacitor C of RCD-snubber circuit during turn-on have beenobtained. The turn-off losses have been computed at linearisedwaveforms of anode current and anode-chatode voltage ofGTO-thyristor. A concept of a driver circuit with various kinds of protectionand diagnostics has been made. Requirements on the control pulseshave been specified. The GTO-switch design has been made. Within the design, theinfluence of parasitical inductances on overvoltages, duringGTO-thyristor turn-off, has been analysed. The switch was tested in the chopper mode and in the model offour-quadrant controller. The test results were compared with theanalysis of switch operation and with design. Instructions for design of GTO-switches with RLD- andRCD-snubber circuits are given. The operation principles of the four-quadrant controller aredescribed. The requirements of the GTO-switch: current andvoltage loading and frequency are specified. The names and designations of characteristics of GTO-thyristorsmade by various manufacturers are given, and Croatian onesproposed. The principles of GTO-thyristor operation and designare described. The solutions of electric motor drives with converters havingGTO-thyristors and inductions motors used in electric anddiesel-electric traction are presented.

  3. Type of paper: Paper in proceedings

    Title: Switch with GTO-thyristor and simetricall RLCD snubber circuits for four-quadrant controller

    Authors:
    Bahun, Ivan (132091)
    Proceedings title: ZBORNIK RADOVA 37. MEĐUNARODNI GODIŠNJI SKUP KoREMA
    Language: hrvatski
    Place: Zagreb
    Year: 1992
    ISBN/ISSN: 86-81571-11-7
    Pages: from 565 to 572
    Meeting: 37. MEĐUNARODNI GODIŠNJI SKUP KoREMA
    Held: from 04/26/92 to 04/29/92
    Summary: The operation principles of the four-quadrant controller andswitch modes of GTO-thyristor in four-quadrant controller aredescribed. The behaviour of switch with GTO-thyristor andsimetricall RLCD snubber circuits for four-quadrant controller isdescribed in terms of the equivalent circuits that areoperational during the switch-on and switch-off sequences.Overvoltages on GTO-thyristors and thyristor losses arecalculated. Some measuring results are given.

  4. Type of paper: Paper in proceedings

    Title: The analysis of the influence of protection on switching characteristics of mosfet-transistors

    Authors:
    Kulišić, Ljubomir
    Proceedings title: Zbornik radova 37. međunarodni godišnji skup KoREMA
    Language: hrvatski
    Place: Zagreb
    Year: 1992
    ISBN/ISSN: 86-81571-11-7
    Pages: from 573 to 577
    Meeting: 37. MEĐUNARODNI GODIŠNJI SKUP KoREMA
    Held: from 04/26/92 to 04/29/92
    Summary: A broader application of semiconductor switch MOSFET-transistorin power electronics devices make additional demands ontransistor protection. The paper deals with simulation ofswitching on and switching off of MOSFET-transistor semiconductorswitch by applying mathematical models for different types oftransistor protections. Three types of transistor protection from overvoltage areanalysed. The influence of diferent protection types on dynamiclosses during switching on and off of the switch is investigated. Analysis results are verified with measurements performed on thelaboratory model of the switch.

  5. Type of paper: Paper in proceedings

    Title: Gate drive circuit for GTO-thyristor: protective and diagnostic functions

    Authors:
    Bahun, Ivan (132091)
    Ungarov, Josip
    Proceedings title: Zbornik radova 38. međunarodni godišnji skup KoREMA
    Language: hrvatski
    Place: Zagreb
    Year: 1993
    ISBN/ISSN: 953-6037-00-9
    Pages: from 664 to 667
    Meeting: 38. MEĐUNARODNI GODIŠNJI SKUP KoREMA
    Held: from 04/26/93 to 04/28/93
    Summary: The gate drive circuit for GTO-thyristor provides controlimpulses, protection and status identification of GTO-thyristorand gate drive circuit itself. The on/off state of GTO-thyristoris identified by measuring of voltage and current characteristicsat the gate connection. Using the gate drive circuit it ispossible to implement overload and short circuit protection ofconverter and its diagnostic. It also ensures control of minimumon/off times of GTO-thyristor and provides protection against itsunsuccessful switching.

  6. Type of paper: Paper in proceedings

    Title: Comparison of IGBT and MOSFET switch in inverter for AC motor drive in lower power range

    Authors:
    Čobanov, Neven (83805)
    Proceedings title: Zbornik radova 38. međunarodni godišnji skup KoREMA
    Language: hrvatski
    Place: Zagreb
    Year: 1993
    ISBN/ISSN: 953-6037-00-9
    Pages: from 668 to 671
    Meeting: 38. MEĐUNARODNI GODIŠNJI SKUP KoREMA
    Held: from 04/26/94 to 04/28/94
    Summary: The most frequently used power devices in inverters for AC motordrives in lower power range are IGBT's and MOSFET's. The lossesand the complexity of implementation in the circuit for bothswitches are compared. One typical AC motor drive is choosen andlosses of the inverter bridge, one with IGBT's and one withMOSFET's are calculated. The results shows that total losses ofthe inverter bridge in both cases do not differ significantly.

  7. Type of paper: Paper in proceedings

    Title: A mathematical model and simulation of the voltage current conditions of the MOSFET-switch during switching

    Authors:
    Kulišić, Ljubomir
    Marinković, Nikola
    Proceedings title: Zbornik radova 38. međunarodni godišnji skup KoREMA
    Language: hrvatski
    Place: Zagreb
    Year: 1993
    ISBN/ISSN: 953-6037-00-9
    Pages: from 672 to 677
    Meeting: 38. MEĐUNARODNI GODIŠNJI SKUP KoREMA
    Held: from 04/26/93 to 04/28/93
    Summary: The paper describes the mathematical model and the simulationresults of the MOSFET-switch for two types of protections. Itsvoltage-current characteristic and switching losses are analyzed.Identification of switch parameters is made on the 1000 V, 5.3 AMOSFET-transistor. The validity of the mathematical model istested by measurement.

  8. Type of paper: Paper in proceedings

    Title: Undeland snubber for GTO converter: thyristor overvoltage and snubber losses analysis

    Authors:
    Siladi, Vladimir (82062)
    Proceedings title: Zbornik radova 38. međunarodni godišnji skup KoREMA
    Language: hrvatski
    Place: Zagreb
    Year: 1993
    ISBN/ISSN: 953-6037-00-9
    Pages: from 659 to 663
    Meeting: 38. MEĐUNARODNI GODIŠNJI SKUP KoREMA
    Held: from 04/26/93 to 04/28/94
    Summary: The behaviour of Undeland snubber for GTO thyristors in bridgeconverter is described. Overvoltages on thyristors and snubberdiode currents due to switching actions are determined. Theinfluence of the parasitic inductances of the connection to theDC link is analysed. The snubber resistor losses are calculated.

  9. Type of paper: New product

    Title:

    Authors:
    Bahun, Ivan (132091)
    Siladi, Vladimir (82062)
    Furčić, Boris
    Ungarov, Josip
    Approved by institution: KONČAR - Institut za elektrotehniku
    Language: hrvatski


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