Congestion management in short term scheduling of power generation

scientific master's theses

• Title (croatian): Upravljanje zagušenjima pri kratkoročnom planiranju proizvodnje električne energije
• Author: Ivan Andročec
• Mentor: Slavko Krajcar (mentor)
• Mentor: Ivar Wangensteen (komentor); strani drzavljanin: Nije dostupno
• Committee member: Željko Tomšić (predsjednik povjerenstva)
• Committee member: Slavko Krajcar (član povjerenstva)
• Committee member: Ivar Wangensteen (član povjerenstva); strani drzavljanin: Nije dostupno
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; (Department of Energy and Power Systems); Zagreb
• Defense date and country: 2005-05-06, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering; Power Engineering
• Universal decimal classification (UDC): 621.3 - Electrical engineering

Abstract

Today, power generation is influenced by the electricity market and increased competition. Electricity buyers are free to choose their supplier. Instead of least cost method, which was used for planning and operational system management, power suppliers and generators are presently maximizing their profit. Today, the equilibrium is achieved in market settlement of generators' or suppliers offers and customer demand for electricity. Different methods and simulations exists that help in the consideration of market forces (water value, fuel costs, electricity price) and power generation costs. Short term maginal value became dominant in decision-making. The system is significantly complicated if we have constraints in the electricity transmission between the generator and the customer. Congestion means a situation in which an interconnection linking national transmission networks cannot accommodate all physical flows resulting from international trade requested by market participants. Congestion management became a dominant topic in the electricity market. The thesis deals with congestion management on cross-border transmission. With the opening of the electricity market and with merging or establishing regional electricity markets on the way through the internal electricity market in Europe, non-market based congestion management methods are being replaced with market-based methods. The thesis addresses the possible congestion management methods in view of of economic efficiency and promotion of competition, maximizing the amount of capacity available and the use made of it, transparency to network users on a non-discriminatory basis, secure network operation, largely revenue neutral mechanisms from the transmission system operator point of view.

Abstract (croatian)

Danas je proizvodnja električne energije pod utjecajem tržišta električne energije i povećane konkurencije. Kupci električne energije su slobodni da izaberu svog opskrbljivača. Umjesto metode najmanjeg troška, koja se rabila za planiranje i operativno vođenje sustava, opskrbljivači i proizvođači električne energije danas maksimiziraju svoj profit. Ravnoteža se danas postiže u tržišnom utvrđivanju ponude proizvođača odnosno opskrbljivača i potražnje kupaca električne energije. Postoje razne metode i simulacije koje pomažu u sagledavanju interakcije tržišnih snaga (vrijednost vode, troškovi goriva, cijena električne energije) i troškova proizvodnje električne energije. Kratkoročna marginalna vrijednost postaje dominantna u odluci. Sustav se bitno usložava ukoliko postoje ograničenja u prijenosu električne energije između proizvođača i kupaca. Zagušenje je stanje u kojem granični vodovi (vodovi između dva tržišta) ne mogu zadovoljiti sve fizičke tokove nastale trgovačkim aranžmanima tržišnih sudionika. Upravljanje zagušenjima postaje dominantna tema tržišta električne energije. Rad se bavi upravljanjem zagušenjima u interkonekcijskim vodovima. Sve većim otvaranjem tržišta i povezivanjem odnosno stvaranjem regionalnih tržišta električne energije na putu prema stvaranju zajedničkog tržišta električne energije u Europi, netržišne metode upravljanja zagušenjima se zamijenjuju sa tržišnima. U radu se istražuju razne tržišne metode upravljanja zagušenjima na nediskriminirajućim tržišnim rješenjima, principima ekonomske efikasnosti i promoviranja tržišnog natjecanja, maksimizaciji dostupnog (interkonekcijskog) kapaciteta, transparentnosti, sigurnosti rada elektroenergetske mreže i neutralnosti prihoda za Operatora prijenosnog sustava.

• Keywords: Congestion management; power system; transmission; generation; short term scheduling; profit maximization; economics; electricity market
• Keywords (croatian): Upravljenje zagušenjima; elektroenergetski sustav; prijenos; proizvodnja; kratkoročno planiranje; maksimizacija profita; ekonomija; tržište električne energije
• Language: english
• URN:NBN: urn:nbn:hr:168:084766
• 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: 2019-07-03 11:14:58