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Energijski in ekonomski učinki nadgradnje elementov v pametnem energetskem omrežju
ID Drčar, Rok (Author), ID Sekavčnik, Mihael (Mentor) More about this mentor... This link opens in a new window

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Abstract
Elektroenergetski sistem je do nedavnega brez večjih težav deloval po uveljavljenem načinu proizvodnje električne energije v velikih proizvodnih enotah ter prenosa in distribucije energije do končnih odjemalcev. Vse večji delež razpršenih virov električne moči ter elektrifikacija ogrevanja, hlajenja in transporta pa povzročajo težave pri izenačevanju proizvodnje in porabe, ki je nujno za stabilno obratovanje omrežja. Alternativo klasičnemu razvoju omrežja predstavljajo rešitve t. i. pametnih omrežij, s katerimi prenosne poti med drugim razbremenjujemo z aktivnim odjemom. V tem magistrskem delu smo toplotno črpalko za ogrevanje in hlajenje poslovnih prostorov nadgradili z napredno informacijsko-komunikacijsko tehnologijo, s čimer je ta postala aktivna in zmožna prilagajati odjem. Vrednotili smo njen prožnostni potencial ter pri tem spremljali učinek na toplotno ugodje v prostoru. Ugotovili smo, da je toplotna črpalka primerna naprava za vključevanje v koncept aktivnega odjema. Časovna razpoložljivost regulacijske moči 12 kW je na letni ravni bila 0,34, pri čemer bistvenih odstopanj v toplotnem ugodju nismo zaznali. Pri določanju ustreznosti za sodelovanje v sistemskih storitvah smo ugotovili, da je toplotna črpalka primerna za terciarno in sekundarno regulacijo frekvence, medtem ko bi bilo za potrditev ustreznosti za primarno regulacijo treba izvesti dodatne meritve.

Language:Slovenian
Keywords:pametna energetska omrežja, aktivni odjem, razpršeni viri, virtualne elektrarne, toplotne črpalke, razpoložljiva regulacijska moč, toplotno ugodje, konična obremenitev omrežja, dinamično tarifiranje
Work type:Master's thesis/paper
Typology:2.09 - Master's Thesis
Organization:FS - Faculty of Mechanical Engineering
Place of publishing:Ljubljana
Publisher:[R. Drčar]
Year:2019
Number of pages:XXII, 74 str.
PID:20.500.12556/RUL-109253 This link opens in a new window
UDC:620.91:621.577(043.2)
COBISS.SI-ID:16846363 This link opens in a new window
Publication date in RUL:29.08.2019
Views:1274
Downloads:190
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Secondary language

Language:English
Title:Energy and economic effects of elements upgrade in smart grids
Abstract:
Until lately, the electro-energetic system has operated in a well-established manner, producing electric energy in large production units without any significant difficulties. It has successfully transferred and distributed the energy to end consumers as well. However, an increasingly large part of distributed energy resources and the electrification of heating, cooling and transport have been causing issues with the balancing of production and consumption which is essential for stable network operation. The alternative to the usual network development are smart grids which reduce the pressure on transmission routes through demand response. In this Master’s thesis, heat pump for heating and cooling of business premises have been upgraded with advanced information and communications technologies. Thus, heat pump became active and able to regulate consumption. We evaluated its flexibility potential and observed the effects on spatial thermal comfort. We established that heat pumps can be included in the concept of demand response. Time availability of 12 kW regulation power came to 0.34. We did not detect any deviations in thermal comfort. When determining the suitability for participating in ancillary services, we learned that heat pumps are suitable for secondary and tertiary frequency control. To determine the suitability for primary control, further measurements would need to be performed.

Keywords:smart grids, demand response, distributed energy resources, virtual power plants, heat pumps, available regulation power, thermal comfort, peak load, dynamic pricing

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