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Title:O identifikaciji parametrov sinhronskega generatorja med obratovanjem z uporabo linearnega ekvivalenta
Authors:ID Bone, Gorazd (Author)
ID Rudež, Urban (Author)
ID Mihalič, Rafael (Author)
Files:.pdf Bone_Rudez_Mihalic.pdf (734,64 KB)
MD5: FAA79B26D23C115CE174DFA490834B49
PID: 20.500.12556/dkum/ee536fdc-1fa0-4838-95de-3f69939b78ec
 
Language:English
Work type:Not categorized
Typology:1.08 - Published Scientific Conference Contribution
Organization:FERI - Faculty of Electrical Engineering and Computer Science
Abstract:V članku je obravnavana zmožnost identifikacije parametrov sinhronskega generatorja iz dinamičnih meritev na priključnih sponkah z uporabo linearnega ekvivalenta. Predstavljena je metoda, ki to izvede z izčrpnim pregledovanjem. Uporabljeni model generatorja ima po dve dušilni navitji na vsaki od osi rotorjev. Ker so meritve izvedene na priključnih sponkah je dinamika rotorjevega kota in vrtilne hitrosti nepoznana. Za namen študije se je simuliralo delovanje sinhronskega generatorja priključenega na togo mrežo. V simulaciji se je vzbujalna napetost stopničasto spremenila. Za iskanje parametrov sinhronskega generatorja je bilo uporabljeno izčrpno preiskovanje možnih parametrov, saj se s to metodo lahko najde vse možne kombinacije parametrov, ki zadovoljujejo kriterije identifikacije. Ob ugotovitvi, da nekateri parametri ne vplivajo na nekatere merjene signale, se je pojavila možnost uporabe razcepljene identifikacije. Brez omenjene razcepitve izčrpna metoda iskanja ne bi bila izvedljiva. Ker je bilo v študiji ugotovljeno, da zelo različni parametri dajejo zelo podobne rezultate za dinamične signale avtorji zaključijo, da parametrov modela generatorja osmega reda ne moremo identificirati z identifikacijskimi metodami, ki uporabljajo linearne ekvivalente.
Keywords:digital simulation, synchronous generator, dynamic system identification, linearization
Publication status:Published
Number of pages:Str. 157-170
PID:20.500.12556/DKUM-68712 New window
UDC:621.31
COBISS.SI-ID:11793236 New window
DOI:10.18690/978-961-286-071-4.17 New window
NUK URN:URN:SI:UM:DK:HT2L68BS
Publication date in DKUM:10.10.2017
Views:1158
Downloads:192
Metadata:XML DC-XML DC-RDF
Categories:Misc.
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Record is a part of a monograph

Title:26. mednarodno posvetovanje »Komunalna energetika 2017« : (9. do 11. maj 2017, Maribor, Slovenija)
Editors:Jože Pihler
Place of publishing:Maribor
Publisher:Univerzitetna založba Univerze v Mariboru
Year of publishing:2017
ISBN:978-961-286-071-4 (PDF)
COBISS.SI-ID:92729089 New window
Conference organizer:Univerza v Mariboru, Univerza v Ljubljani, Energetska agencija za Podravje

Secondary language

Language:English
Title:On-line identifiability of a synchronous generator by linearized equivalent
Abstract:In this paper the identifiability of synchronous generator’s parameters from time domain measurements at the terminals using a linearized equivalent is examined and a decoupled brute force algorithm for identification is presented. The generator model has two windings on both, the quadrature and the direct axis of the rotor. Measurements are carried out at the terminals; therefore the instantaneous values for rotor’s angle and rotational speed are unknown. A synchronous generator operating in a single machine infinite bus (SMIB) system was simulated. Field voltage was simulated to undergo a rectangular pulse change and the electrical quantities at the generator’s terminals were measured. To search the values of generator’s parameters brute force algorithm was used, since it provides an insight into all possible parameter sets which satisfy the identification criteria. After it has been established that some measured variables are insensitive to changes of certain parameters, a multistage approach was justified; without it, brute force search would not be feasible. Since the dynamics obtained with various parameter sets nearly coincides with that of the original simulation it is concluded that the synchronous generator’s parameter identification using the eighth order model in a linearized set up is not generally possible.
Keywords:digitalna simulacija, sinhronski generator, identifikacija dinamičnega sistema, linearizacija


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