Environmentally constrained unit commitment

Author

Kuloor, S. ; Hope, G.S. ; Malik, O.P.

Author_Institution

Dept. of Electr. & Comput Eng., Calgary Univ., Alta., Canada

Volume

139

Issue

2

fYear

1992

fDate

3/1/1992 12:00:00 AM

Firstpage

122

Lastpage

128

Abstract

The authors present a short-term unit-commitment algorithm. They include a new function for managing SO₂ emissions from fossil-fuel-fired generating units. The method uses a Lagrangian-relaxation-based algorithm which offers a new approach for the commitment of realistically sized systems. Emission is considered as a second objective function and is added to the main objective function with a weighting factor. Generation, reserve, fuel and environmental constraints are incorporated into the main objective function. Individual-unit constraints such as must-run status, ramp-rate constraints and minimum up- and down-time constraints are considered. Unit-startup cost is represented as a function of down-time. The algorithm is tested on a 17-unit system for a time horizon of 24 hours with one-hour steps

Keywords

air pollution detection and control; electric generators; thermal power stations; Lagrangian-relaxation-based algorithm; SO₂ emissions management; down-time; environmental constraints; fossil-fuel-fired generating units; fuel constraints; generation constraints; main objective function; must-run status; ramp-rate constraints; reserve constraints; second objective function; short-term unit-commitment algorithm; unit startup cost; up-time; weighting factor;

fLanguage

English

Journal_Title

Generation, Transmission and Distribution, IEE Proceedings C

Publisher

iet

ISSN

0143-7046

Type

jour

Filename

126789