Sustav motrenja energetskih transformatora

scientific master's theses

• Title (english): System for monitoring of power transformers
• Author: Mladen Banović
• Mentor: Josip Butorac (mentor)
• Committee member: Zlatko Maljković (predsjednik povjerenstva)
• Committee member: Josip Butorac (član povjerenstva)
• Committee member: Zdenko Godec (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; (Department of Electrical Engineering Fundamentals and Measurements); Zagreb
• Defense date and country: 2007-11-22, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering; Electromechanical Engineering
• Universal decimal classification (UDC): 621.3 - Electrical engineering

Abstract

U radu je napravljen pregled motrenja energetskih transformatora. Opisani su glavni uzroci nastanka i primjene sustava motrenja na transformatorima, napravljen je pregled veličina i dijelova transformatora koje je moguće motriti te je obrazloženo zašto je korisno motriti pojedinu veličinu. Opisana je hardverska i softverska struktura sustava motrenja transformatora - KONČAR TMS, koji omogućuje motrenje većine veličina i dijelova transformatora. Nadalje, obrazložene su tehnike i dane su načelne sheme mjerenja veličina u sustavu motrenja s pregledom pojedinih senzora i sustava kojima se realiziraju mjerenja. Vrijednosti računskih parametara transformatora određuju se pomoću ugrađenih algoritama, koji su također opisani, kao i alati implementirani u sustav motrenja koje korisnik može koristiti da bi na osnovi mjerenih i izračunatih parametara dobio dodatne informacije za vođenje postrojenja i sustava, odnosno održavanje opreme. Opisana su i analizirana tri rješenja za daljinski pristup sustavu motrenja i razmjenu informacija u lokalnom i daljinskom načinu rada, od kojih su dva standardna i jedno rješenje posebno razvijeno za sustav motrenja KONČAR TMS. Opisani su komunikacijski moduli, implementirani u sustav motrenja, za komunikaciju prema normama IEC 60870-5-101, IEC 60870-5-104 i Modbus, a služe za razmjenu informacija s drugim sustavima u postrojenju. Opisane su mreže motrenja, čija je svrha distribuiranje informacija sustava motrenja svima kojima su potrebne, s ciljem što efikasnijeg iskorištenja opreme i alata sustava motrenja te komunikacijske infrastrukture.

Abstract (english)

The thesis gives a survey of power transformer monitoring. The main reasons for the development and application of transformer monitoring systems (TMSs) are given, an overview of monitored parameters and parts of transformer is given as well, and monitoring benefits described. Hardware and software structure of the transformer monitoring system KONÈAR TMS is described. This system enables monitoring most of the given transformer parameters and parts. Further, techniques and principal drawings of measurements in the monitoring system are described, and an overview of sensors and systems for measurements is given. Values of calculated parameters are estimated using implemented algorithms that are described, as well as implemented tools, used for getting additional information on the basis of measured and calculated parameters. This information can be used for managing power plants or a power system, or for maintenance purposes. Three different solutions for remote access to the monitoring system are described. These solutions enable exchange of information during local or remote access to the system. Two solutions are standard, while the third is the proprietary protocol of transformer monitoring system KONÈAR TMS. Communication modules for data exchange with other systems in a power plant, witch are implemented in the monitoring system in accordance with standards IEC 60870-5-101, IEC 60870-5-104 and Modbus, are described. Monitoring system networking on different levels is described. Purpose of these networks is distribution of monitoring information to all users who need this information, to use equipment and tools of monitoring system, as well as communication infrastructure more efficiently.

• Keywords: motrenje; mjerenje; energetski transformator; sustav motrenja; daljinski pristup; mreža sustava motrenja; komunikacijski protokol; upravljanje imovinom; informacija; algoritam
• Keywords (english): monitoring; measurement; power transformer; monitoring system; remote access; monitoring system network; communication protocol; asset management; information; algorithm
• Language: croatian
• URN:NBN: urn:nbn:hr:168:981421
• 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: 2020-04-22 13:59:14