Digitalni sustav regulacije hidroagregata s Peltonovom turbinom

scientific master's theses

• Author: Nikola Tonković
• Mentor: Gorislav Erceg (mentor)
• Committee member: Zlatko Maljković (predsjednik povjerenstva)
• Committee member: Gorislav Erceg (član povjerenstva)
• Committee member: Milenko Stegić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2003, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering; Power Engineering
• Universal decimal classification (UDC): 621.3 - Electrical engineering

Abstract

U ovom radu prikazana je mogućnost objedinjavanja sustava regulacije napona i brzine vrtnje (snage) hidroagregata u jedinstven digitalni regulacijski sustav. Prikazani su matematički i simulacijski model hidroagregata s Peltonovom turbinom i sustavom regulacije. Parametri simulacijskog modela su radi usporedbe prilagođeni agregatu HE Vinodol. Regulatori u simulacijskom modelu su podešeni tako da daju optimalne odzive regulacijskog kruga pri zaletu i uzbuđivanju agregata te u radu u elektroenergetskom sustavu. Prikazani su odzivi simulacijskog modela za dva najznačajnija režima rada agregata: prazni hod i rad u elektronergetskom sustavu. Prikazani simulacijski model je pogodan za daljnje istraživanje i unapređivanje strukture te podešavanje parametara regulacijskih sustava. Simulacijski model može se lako prilagoditi stvarnim uvjetima u elektrani. Digitalni sustav regulacije napona generatora "DIRES 21" ugrađen u agregat br. 3 HE Vinodol nadograđen je sustavom turbinske regulacije koji je zamijenio stare analognoelektroničke regulatore. Parametri novog turbinskog regulatora podešeni su u pogonu tako da daju optimalne odzive sustava u praznom hodu i radu u elektroenergetskom sustavu. Sustav regulacije hidroagregata opremljen je i automatskim sinkronizatorom. Odzivi simulacijskog modela su uspoređeni s odzivima stvarnog pogona. Objedinjeni digitalni sustav regulacije hidroagregata je pokazao u radu niz prednosti koje idu u prilog ovakvoj izvedbi regulacijskog sustava za manje hidroagregate.

Abstract (english)

This thesis presents implementation of turbine governor and synchronous generator voltage control system within the same digital control system. Hydro generating unit mathematical and simulation models are presented. Simulation model is adapted to Vinodol HPP for comparison purposes. Model control system parameters are adjusted for achieving optimal control characteristics during generating unit start and excitation and during operation in electrical power system. Responses of simulation model are presented for those two operating modes. Presented simulation model is suitable for further control structure research and development and for control system parameters adjustment. Model can be easily adjusted to real hydro power plant conditions. Digital voltage control system "DIRES 21" on generating unit no. 3 of Vinodol HPP is upgraded with turbine governing system. System has replaced an old turbine governing system. Turbine governor parameters are adjusted for achieving optimal control characteristics for no load condition and during operation in electrical power system. Digital control system contains an automatic synchronization device. Simulation model responses are compared to actual generating unit responses. All in one digital control system of hydro generating unit has shown many advantages during its test operation that are in favour of this kind of system for small hydro power plants.

• Keywords: hidroagregat; Peltonova turbina; turbinska regulacija; sinkroni generator; regulacija napona; digitalni regulator
• Keywords (english): hydro generating unit; Pelton turbine; turbine governor; synchronous generator; voltage control; digital control system
• Language: croatian
• URN:NBN: urn:nbn:hr:168:846522
• 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)
• Catalog URL: http://lib.fer.hr:8080/cgi-bin/koha/catalogue/detail.pl?biblionumber=29022
• Type of resource: Text
• Extent: 122 str. ; 30 cm
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2019-05-22 12:56:23