Utjecaj termoelektrana velike snage na dinamiku elektroenergetskog sustava

scientific master's theses

• Author: Dubravka Kolundžić
• Mentor: Sejid Tešnjak (mentor)
• Committee member: Srđan Babić (član povjerenstva)
• Committee member: Sejid Tešnjak (član povjerenstva)
• Committee member: Nikola Šerman (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2000-04-28, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering; Power Engineering
• Universal decimal classification (UDC): 621.3 - Electrical engineering

Abstract

U radu je istražen utjecaj velike termoelektrane na dinamiku elektroenergetskog sustava (EES). Opisan je EES sa sustavima koji imaju značajnu ulogu u proučavanju dinamike sustava. Neki od zahtjeva EES-a koje treba uzeti u obzir pri planiranju i izgradnji velike termoelektrane opisani su u radu. Također je dan popis potrebnih podataka za proračune utjecaja termoelektrane na EES. Opis dinamičkih pojava s pojedinim aspektima stabilnosti pregledno je prikazan. Za proračune stabilnosti važnu ulogu ima matematičko modeliranje sustava i njegovih komponenti. Prikazani su osnovni modeli elemenata sustava kao i opći model cjelokupnog sustava za simulaciju prijelazne stabilnosti. Prikupljanjem podataka za konfiguraciju za godinu ulaska u pogon nove termoelektrane i podataka za pojedine elemente sustava formiran je model EES-a. Nakon proračuna stacionarnih stanja istražena je prijelazna stabilnost takvog EES-a. Simulacijom su dobiveni vremenski odzivi varijabli sustava na kvar u sustavu. Također je, kao pokazatelj rezerve prijelazne stabilnosti, određeno kritično vrijeme trajanja kvara. Posebno su napravljene simulacije koje pokazuju utjecaj pojedinih parametara na prijelaznu stabilnost što je bitno pri donošenju odluke o izgradnji nove termoelektrane u EES-u.

Abstract (english)

Thermal power plant impact on power system dynamics is being surveyed. An overview of electrical power system and its components having main role in power system dynamics is given. Some of the power system requirements important during thermal power plant planning and design are outlined. Data for thermal power plant impact on power system investigation are also given. Then an overview of dynamics phenomena with different forms of stability is described.
During stability simulation mathematical modeling of systems and its component is very important. Therefore power system components basic models and power system model for transient stability simulation are presented. Following gathering of the data for power system configuration for the year of new thermal power plant commissioning, such as power system components data the power system model is established. For such a system load flow study is made which serves as input for transient stability simulation. As a result of simulation following a fault system variable responses are designed. Critical clearing time as a transient stability security limit is also computed. The influence of some parameters on transient stability comparing graphs are given. These results are very important during making decision on new thermal power plant construction.

• Keywords: Elektroenergetski sustav; dinamika EES-a; prijelazna stabilnost; utjecaj termoelektrane na EES
• Keywords (english): Electrical power system; power system dynamics; transient stability; thermal power plant impact on power system
• Language: croatian
• URN:NBN: urn:nbn:hr:168:501290
• Study programme: Title: Postgraduate master programme in electrical engineering; Study programme type: university; Study level: postgraduate; Academic / professional title: Magistar znanosti elektrotehnike (Magistar znanosti elektrotehnike)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2019-04-03 11:25:51