Title :
A mew model for the optimization of the power system at Imatran Voima
Author :
Kakko, Urpo ; Karttinen, Timo ; Ruusunen, Jukka
Author_Institution :
Imatran Voima Oy, Helsinki, Finland
Abstract :
In this paper, the authors present a new generation scheduling model for the Imatran Voima power system. The model considers a two-area hydrothermal power system. In addition to hydro and thermal production, the model is capable of considering various kinds of power contracts. The large-scale optimization problem is solved by the augmented Lagrangian relaxation approach. After the demand and reserve requirements of the two areas are relaxed, the optimization problem is decomposed into thermal, hydro and contract subproblems and the optimization of power transmission between two interconnected areas. Each subproblem is solved by an appropriate optimization method. The high-level problem is to choose optimal Lagrange multipliers. This produces different marginal cost patterns for the two areas
Keywords :
control system CAD; digital simulation; economics; hydroelectric power stations; hydrothermal power systems; optimal control; power system analysis computing; power system control; power system interconnection; scheduling; thermal power stations; augmented Lagrangian relaxation approach; computer simulation; generation scheduling model; interconnected areas; large-scale optimization problem; marginal cost patterns; optimal Lagrange multipliers; optimization problem; power transmission; two-area hydrothermal power system; Contracts; Costs; Hydroelectric power generation; Lagrangian functions; Large-scale systems; Optimization methods; Power generation; Power system analysis computing; Power system modeling; Production;
Conference_Titel :
Power Industry Computer Application Conference, 1995. Conference Proceedings., 1995 IEEE
Conference_Location :
Salt Lake City, UT
Print_ISBN :
0-7803-2663-6
DOI :
10.1109/PICA.1995.515162
