Short-term resource scheduling with ramp constraints [power generation scheduling]

Author

Svoboda, Alva J. ; Tseng, Chung-Li ; Li, Chao-an ; Johnson, Raymond B.

Author_Institution

Pacific Gas & Electr. Co., San Francisco, CA, USA

Volume

12

Issue

1

fYear

1997

fDate

2/1/1997 12:00:00 AM

Firstpage

77

Lastpage

83

Abstract

This paper describes a Lagrangian relaxation-based method to solve the short-term resource scheduling (STRS) problem with ramp constraints. Instead of discretizing the generation levels, the ramp rate constraints are relaxed with the system demand constraints using Lagrange multipliers. Three kinds of ramp constraints, startup, operating and shutdown ramp constraints are considered. The proposed method has been applied to solve the hydro-thermal generation scheduling problem at PG&E. An example alone with numerical results is also presented

Keywords

hydrothermal power systems; optimisation; power system planning; scheduling; Lagrange multipliers; Lagrangian relaxation method; hydro-thermal generation scheduling; operating ramp; power system demand constraints; ramp rate constraints; short-term power generation scheduling; short-term resource scheduling; shutdown ramp; startup ramp; Chaos; Combustion; Hydraulic turbines; Lagrangian functions; Power engineering and energy; Power system modeling; Power systems; Spinning; State-space methods; Thermal loading;

fLanguage

English

Journal_Title

Power Systems, IEEE Transactions on

Publisher

ieee

ISSN

0885-8950

Type

jour

DOI

10.1109/59.574926

Filename

574926