Detekcija otočnog rada sinkronog generatora priključenog na distribucijsku mrežu upotrebom sustava uzbude Unitrol 6080

master's thesis

• Title (english): Detection of island state of the synchronous generator connected to the distribution network by using the excitation system Unitrol 6080
• Author: Filip Rabuzin
• Mentor: Damir Sumina (mentor)
• Committee member: Damir Sumina (predsjednik povjerenstva)
• Committee member: Igor Erceg (član povjerenstva)
• Committee member: Stjepan Stipetić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2018-07-03, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Otočni pogon nedozvoljeno je pogonsko stanje i trenutna je praksa da skoro svi opskrbljivači zahtijevaju što brže odvajanje distribuirane proizvodnje od ostatka distribucijske mreže. Nedetekcija otočnog pogona može uzrokovati oštećenje opreme, ugroziti sigurnost radnika na dalekovodnim linijama i uzrokovati degradaciju kvalitete električne energije u distribucijskoj mreži. Metode detekcije se dijele na lokalne (aktivne, pasivne i hibridne) i daljinske. Rad se fokusira na aktivnu metodu detekcije koja se temelji na parametru osjetljivosti jalove snage. Radi usporedbe djelovanja, aktivna metoda se uspoređuje s pasivnom metodom identifikacije parametara sustava. Sustav koji se ispituje sastoji se od samo jednog sinkronog generatora priključenog na mrežu. Radi osiguranja stabilnosti rada sinkronog generatora, prije implementacije ispitan je rad limitera generatora, jer aktivna metoda detekcije injektira perturbacije napona u sustav kako bi izazvala disbalans u ravnotežnom stanju. U radu je opisan sustav uzbude Unitrol 6080 i simulator rada sinkronog stroja SMTS-RT. Program za detekciju je pisan u SFC programskom jeziku u Control Builder-u. Odzivi u pogonskom dijagramu i oscilogrami snimljeni su na upravljačkom terminalu uzbudnog sustava.

Abstract (english)

Island state is forbidden, and current practice is that almost all the suppliers require the quickest separation of distributed generation from the rest of the distribution network. Failure to detect the island state can cause damage to equipment, endanger the safety of workers on the transmission lines and cause degradation of electricity quality in the distribution grid. Detection methods are divided into local (active, passive and hybrid) and remote. The work focuses on an active detection method based on the reactive power sensitivity parameter. For comparison of effects, the active method is compared with the passive method of identifying system parameters. The system being tested consists of only one synchronous generator connected to the network. To ensure stability of the synchronous generator, prior to implementation, the work of the generator limiters was examined because the active detection method injects voltage disturbances into the system to cause imbalance in the equilibrium state. In this paper the excitation system Unitrol 6080 and SMTS-RT synchronous machine simulator were described. The detection program was written in the SFC programming language in Control Builder. The responses in the drive diagram and the oscillographs were recorded on excitation control terminal.

• Keywords: otočni pogon; distribuirana proizvodnja; distribucijska mreža; detekcija otočnog pogona; aktivna metoda detekcije; perturbacije; sinkroni generator; limiteri; Control Builder; SFC; SMTS-RT
• Keywords (english): island drive; distributed generation; distribution network; island drive detection; active detection method; perturbation; synchronous generator; limiters; Control Builder; excitation control terminal; SFC; SMTS-RT
• Language: croatian
• URN:NBN: urn:nbn:hr:168:806560
• 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: 2019-03-14 00:16:29