A solution of unit commitment with transmission and voltage constraints by heuristic method and optimal power flow

Author

Sasaki, H. ; Yamamoto, T. ; Kubokawa, J. ; Nagata, T. ; Fujita, H.

Author_Institution

Dept. of Electr. Eng., Hiroshima Univ., Japan

Volume

1

fYear

2000

fDate

2000

Firstpage

357

Abstract

In this paper, a heuristic algorithm combined with OPF is proposed for short-term unit commitment problem with transmission and voltage constraints. Being a very complicated combinatorial optimization problem, unit commitment is very difficult to solve, especially, for large-scale power system with network constraints. We have proposed a heuristic algorithm based on the average full load cost without network constraints. In this study, we propose a solution of unit commitment problem with network constraints using combination of heuristic algorithm and OPF. The proposed algorithm has been applied to the IEEE 118 test system with 36 generators over a 24-h period. The result shows that the proposed algorithm is capable of obtaining satisfactory schedules without any constraint violation

Keywords

combinatorial mathematics; load flow; optimisation; power generation scheduling; 24 h; IEEE 118 test system; combinatorial optimization problem; full load cost; heuristic algorithm; heuristic method; large-scale power system; network constraints; optimal power flow; transmission constraints; unit commitment; voltage constraints; Constraint optimization; Costs; Heuristic algorithms; Large-scale systems; Load flow; Power systems; Reactive power; Scheduling algorithm; System testing; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power System Technology, 2000. Proceedings. PowerCon 2000. International Conference on

Conference_Location

Perth, WA

Print_ISBN

0-7803-6338-8

Type

conf

DOI

10.1109/ICPST.2000.900083

Filename

900083