Mjere za smanjenje gubitaka u distribucijskoj mreži

scientific master's theses

• Title (english): Measures to decrease losses in distribution network
• Author: Kruno Trupinić
• Mentor: Vladimir Mikuličić (mentor)
• Committee member: Zdravko Hebel (predsjednik povjerenstva)
• Committee member: Vladimir Mikuličić (član povjerenstva)
• Committee member: Srete Nikolovski (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; (Department of Energy and Power Systems); Zagreb
• Defense date and country: 2005-12-22, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering; Power Engineering
• Universal decimal classification (UDC): 621.3 - Electrical engineering

Abstract

Iznos gubitaka električne energije odnosno snage jedan je od ključnih čimbenika koji pokazuje ekonomičnost i kvalitetu poslovanja distribucijskog poduzeća. U radu je prikazana problematika određivanja ukupnih gubitaka temeljem bilanci nabave i prodaje «PEE» odnosno obračunskih bilanci. Dani su prijedlozi poboljšanja kako bi krajnji rezultat bio što točniji.
Prezentirani su proračun i analiza tehničkih gubitaka temeljeni na «on-line» podacima iz sustava daljinskog vođenja i snimljenim dijagramima opterećenja u SN i NN mreži. Na osnovi poznatih ukupnih i tehničkih gubitaka određuju se netehnički kao njihova razlika, te se analiziraju moguća mjesta nastanka.
U nastavku su opisane metode za smanjenje tehničkih gubitaka, prvenstveno optimiranjem tokova snaga prema tehničkim karakteristikama objekata kojima teku, a potom optimiranjem tehničkih karakteristika objekata prema pripadnim tokovima snaga. Opisane su i aktivnosti na smanjenju netehničkih gubitaka uz pomoć suvremenih mjernih uređaja.
Provedba svih ovih mjera i aktivnosti dana je na primjeru Pogona Nova Gradiška, sastavnog dijela DP Elektre Slavonski Brod.

Abstract (english)

Amount of electrical energy losses is one of key elements that show cost-efficiency and quality of distribution company business. New detailed approach of total losses determination, based on balance sheet between input energy (from transmission system) and outcome energy (to end-users) in a distribution system is presented in thesis. Some suggestions and improvements for power line flow calculation (such as a time and line in-depth repartition) are proposed to get as accurate results as possible.
Analysis of technical losses in distribution power system followed by precise calculation and based on measured data from remote control supervising system as well as on a load diagram measurements in MV and LV network is described here. Nontechnical losses are obtained as a difference between total losses and technical losses; also there are good preconditions for nontechnical losses allocation along the LV lines.
New methodology for technical losses reduction is described: principally by optimizing power flows in the network according to technical parameters of distribution network elements and by optimizing network elements according to appurtenant power flows. It was indicated that use of a modern measurement devices efficiently decreases nontechnical losses.
All measures and activities described in thesis are realized in the power network of Nova Gradiška as part of distribution area of Elektra Slavonski Brod.

• Keywords: Ukupni; tehnički i netehnički gubici el. energije; distribucijska mreža; proračun tehničkih gubitaka; mjerenje dijagrama opterećenja; procjena netehničkih gubitaka; smanjenje gubitaka
• Keywords (english): Electrical energy total; technical and nontechnical losses; distribution network; calculation of technical losses; load diagram measurement; estimation of nontechnical losses; decrease of losses
• Language: croatian
• URN:NBN: urn:nbn:hr:168:539592
• 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: 2019-07-16 08:15:49