Periodical replanning with hierarchical repairing for the optimal operation of a utility plant
| Autor: | Jae Hak Jung, Jie Tae Lee, Jeong Hwan Kim, Chonghun Han, Heui-Seok Yi, Moonyong Lee |
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| Rok vydání: | 2003 |
| Předmět: |
Mathematical optimization
Engineering Heuristic (computer science) business.industry Applied Mathematics Interval (mathematics) Computer Science Applications Knowledge base Control and Systems Engineering Operational planning Decomposition method (constraint satisfaction) Electrical and Electronic Engineering Operational costs business Integer programming Energy (signal processing) |
| Zdroj: | Control Engineering Practice. 11:881-894 |
| ISSN: | 0967-0661 |
| DOI: | 10.1016/s0967-0661(02)00214-9 |
| Popis: | The integration methodology of periodical replanning and hierarchical repairing is proposed to handle the prediction errors of energy demands in the multiperiod operational planning. The periodical replanning is implemented by the decomposition method. The hierarchical repairing is triggered during the execution interval when prediction errors in energy demands exist. The hierarchical repairing uses the heuristic knowledge. The efficiency indices for utility pumps are introduced to determine the optimal configuration of motors and turbines for running utility pumps without integer programming. Case studies show that the proposed method is more profitable than the periodical replanning. The operational cost is reduced by 0.9–4.0% compared with the cost by the periodical replanning. r 2002 Elsevier Science Ltd. All rights reserved. |
| Databáze: | OpenAIRE |
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