Analize sigurnosti u prijenosnoj elektroenergetskoj mreži

master's thesis

• Title (english): Power transmission network contingency analyses
• Author: Lidija Pnjaček
• Mentor: Ivica Pavić (mentor)
• Committee member: Ivica Pavić (predsjednik povjerenstva)
• Committee member: Viktor Milardić (član povjerenstva)
• Committee member: Božidar Filipović-Grčić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2019-07-11, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Za sigurno vođenje pogona EES–a neophodno je u stvarnom vremenu provoditi odgovarajuće analize sigurnosti. Najčešća metoda koja se pritom koristi je analiza sigurnosti N–1. Ona se izvodi ciklički, pri promjeni topologije ili na zahtjev. Osnovnu pretpostavku za točno izvođenje proračuna, čine ispravno modelirani elementi mreže ali i odgovarajuće odabrane metode proračuna. Osim navedenog, na točnost uvelike utječe i ispravno predstavljanje vanjskog dijela sustava. Analiza svih mogućih ispada u mreži zahtijeva dugotrajan postupak koji za primjenu u stvarnom vremenu nije prihvatljiv. Zato, na vrijeme predvidjeti mogućnost problema u sustavu, znači prepoznati i pratiti samo one elemente koji imaju značajan utjecaj na sigurnost.

Abstract (english)

In order for a power system to operate in a safe manner, it is necessary to carry out appropriate safety analysis in real time. The most commonly used method is N–1 contingency analysis. It is performed cyclically, when the topology changes, or on demand. In order to get the correct results from various grid calculations, it is essential to apply the appropriate modelling of grid elements as well as calculation methods. Besides that, It is very important to apply the correct model of the external part of the system. The analysis of all possible power grid faults is a time consuming process and as a such is not acceptable since contingency analysis can be considered reliable only if it's applied in real-time. In order to predict fault occurrence probability it is necessary to identify and monitor the elements which are known to have significant effect on the safety of a system.

• Keywords: Analiza sigurnosti N–1; estimacija; tokovi snaga; elektroenergetski sustav; SCADA; PSS/E; ABB Network Manager EMS
• Keywords (english): N–1 contingency analysis; state estimation; power flows; power system; SCADA; PSS/E; ABB Network Manager EMS
• Language: croatian
• URN:NBN: urn:nbn:hr:168:156501
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije (magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2020-01-07 21:25:34