Dinamičke značajke povezivanja elektroenergetskih sustava različitih sinkronih svojstava

doctoral thesis

• Title (english): Dynamic Characteristics of Connecting Power Systems with Different Sychronous Properties
• Author: Ivica Toljan
• Mentor: Sejid Tešnjak (mentor)
• Committee member: Tomislav Tomiša (predsjednik povjerenstva)
• Committee member: Sejid Tešnjak (član povjerenstva)
• Committee member: Juraj Šimunić (član povjerenstva)
• Committee member: Zvonimir Šikić (član povjerenstva)
• Committee member: Zijad Haznadar (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; (Department of Energy and Power Systems); Zagreb
• Defense date and country: 2010-12-22, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering; Power Engineering
• Universal decimal classification (UDC): 621.3 - Electrical engineering

Abstract

Svakodnevnim porastom potražnje za električnom energijom i restrukturiranjem elektroenergetskog sektora postavlja se temeljni cilj vođenja elektroenergetskog sustava; sigurna i pouzdana opskrba uz minimalne troškove i maksimalnu raspoloživost. Povezivanjem ees-a optimalno se dolazi do navedenog cilja. Stvaraju se veliki ees-i koji rade na rubu tehničkih mogućnosti zbog težnje minimalnih troškova i gubitaka. Jedan od značajnih problema prilikom sigurnog vođenja je problem dinamičke stabilnosti koji je izraženiji što je sustav veći. Sadržajno su obrađeni suvremeni veliki ees-i i uloga Operatora prijenosnog sustava kao glavnog subjekta pri vođenju, dinamički problemi i matematički model za analizu s naglaskom na model vlastitih vrijednosti, dinamički ekvivalenti vanjskih ees-a i algoritam modeliranja, matematički modeli vodova razmjene povezanih sustava, statička i dinamička sinkrona svojstava prve i druge zone prije povezivanja, sam postupak spajanja i rezultati učinkovitosti. U disertaciji je obrađen teorijski i matematičkim modelom predočen problem dinamičkih svojstava povezivanja dva velika ees-a; prve i druge paneuropske sinkrone zone. Praktičkom realizacijom procesa povezivanja došlo se do dragocjenih znanstvenih i stručnih spoznaja koje su publicirane na međunarodnim i domaćim stručnim konferencijama. Proračuni, mjerenja i rezultati povezivanja koriste se u projektima daljnjeg širenja i povezivanja paneuropskog ees-a.

Abstract (english)

Daily increase of the demand for electrical power and the restructuring of the power sector set the main objective of the power system management and control: a safe and reliable power supply with minimum costs and maximum availability. This objective is attained in the optimum way by connecting power systems. Large power systems are formed, which operate on the verge of their technical capabilities in order to minimise costs and losses. One of the significant problems in their safe management and control is the dynamic stability – the larger the system, the more marked this problem. The investigation covers large modern power systems and the role of the HEP Transmission System Operator as the main business entity in power system management and control, dynamic problems and a mathematical model for the analysis based on the eigenvalue analyses, dynamic equivalents of external power systems and optimal linear management and control, issues related to subsynchronous resonance, static and dynamic characteristics of the 1st and the 2nd zones before reconnection, the procedure of power system connecting and power efficiency results. The thesis provides a mathematical model and a theoretical consideration of the problem of dynamic characteristics of connecting two large power systems: the 1st and the 2nd Pan-European synchronous zones. Practical implementation of the project has provided valuable scientific and practical insights, which were presented at international and national conferences and professional meetings. Calculations, measurements and results of the power system connecting are used in projects of further expansion and connection of the Pan-European power system.

• Keywords: elektroenergetski sustav; povezivanje; stabilnost; dinamika; podsinkrona rezonancija; medupodručne oscilacije; redoslijed faza; regulacija; sučelje; razmjena
• Keywords (english): electric power system; connection; stability; dynamics; undersynchronous resonance; inter– area oscillations; phase arrangement; regulation; interface; exchange
• Language: croatian
• URN:NBN: urn:nbn:hr:168:705821
• Study programme: Title: Doctoral study programme "Electrical Engineering and Computing"; Study programme type: university; Study level: postgraduate; Academic / professional title: doktor/doktorica znanosti, po-dručje tehničkih znanosti (doktor/doktorica znanosti, po-dručje tehničkih znanosti)
• Catalog URL: http://lib.fer.hr/cgi-bin/koha/opac-detail.pl?biblionumber=34344&query_desc=kw%2Cwrdl%3A%20toljan
• Type of resource: Text
• Extent: 263 str ; 30 cm
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2019-05-07 08:22:20