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

Department(s)

Engineering Management and Systems Engineering

Keywords and Phrases

Lagrange Multipliers; Lagrangian Relaxation Method; Hydro-Thermal Generation Scheduling; Hydrothermal Power Systems; Operating Ramp; Optimisation; Power System Demand Constraints; Power System Planning; Ramp Rate Constraints; Scheduling; Short-Term Power Generation Scheduling; Short-Term Resource Scheduling; Shutdown Ramp; Startup Ramp

International Standard Serial Number (ISSN)

0885-8950

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 1997 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

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