AC or DC OPF based LMP´s in a competitive electricity market?

Author

Korab, Roman ; Tomasik, Grzegorz

Author_Institution

Silesian Tech. Univ., Gliwice

fYear

2005

fDate

7-7 Oct. 2005

Firstpage

61

Lastpage

68

Abstract

In this paper five-bus test system as well as Polish power system consisting of 2750 nodes and 3500 branches have been used for calculations. For each case LMP values were determined by three methods: AC OPF with direct respecting voltage constraints, DCL OPF with power losses and DC OPF without power losses. Based on the results obtained, it can be concluded that the proposed method for determining the branch real power capacity limit it possible to meet voltage constraints in the network during DC optimization. It can also be stated that in the Polish power system it is possible apply both the exact AC model and a simplified DCL model, while the use of the DC model is not appropriate for the Polish system

Keywords

load flow; power markets; power system economics; pricing; AC OPF; DC OPF; DC optimization; LMP values; Polish power system; branch real power capacity; competitive electricity market; five-bus test system; power losses; voltage constraints; Costs; DC generators; Electricity supply industry; Load flow; Power generation; Power system modeling; Power systems; Reactive power control; System testing; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

CIGRE/IEEE PES, 2005. International Symposium

Conference_Location

New Orleans, LA

Print_ISBN

0-7803-9191-8

Type

conf

DOI

10.1109/CIGRE.2005.1532727

Filename

1532727