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Multiobjective Optimization with HEC Res-PRM — Application to the Upper Mississippi Reservoir System
HEC-PRM ("Prescriptive Reservoir Model") is a generalized computer program that performs deterministic network flow optimization of multireservoir systems. PRM "prescribes" optimal values of flow and storage over time by minimizing penalty functions at selected locations in the water resource network. Penalty functions associate a penalty or reward (benefit function) with designated levels of flow or storage. Because a given location (flow reach or reservoir) can have several competing objectives, a separate penalty curve for each objective can be included in the model. Optimization with a Network Row Programming with gains algorithm enables relatively fast runs times for large systems but restricts constraints to capacity limits and mass balance at nodes. PRM has been applied to several large multi-reservoir river systems, such as the Columbia system, the Missouri system and the entire state-wide water resource network of California. HEC-ResPRM is new graphical user interface for PRM that has been developed to facilitate the implementation of large multi-objective reservoir operation studies. The GUI is in large part shared with HEC-ResSim — a multi-reservoir simulation modeling system. The integration of PRM into the HEC-RES modeling platform was made to facilitate the joint development and use of simulation and optimization models. The multi-objective nature of water resource problems is considered and any number of penalty functions with differing units can be added at any network location. A penalty-weight editor facilitates building trade-off curves between objectives by allowing the user to easily change the weight of each penalty type for all locations. Selected preliminary results of a multi-objective reservoir operation study of the Upper Mississippi Reservoir System are presented. This optimization study is part of a "shared vision" planning study, which uses a simulation model to refine the new operation policies suggested by use of the optimization model.
Multiobjective Optimization with HEC Res-PRM — Application to the Upper Mississippi Reservoir System
HEC-PRM ("Prescriptive Reservoir Model") is a generalized computer program that performs deterministic network flow optimization of multireservoir systems. PRM "prescribes" optimal values of flow and storage over time by minimizing penalty functions at selected locations in the water resource network. Penalty functions associate a penalty or reward (benefit function) with designated levels of flow or storage. Because a given location (flow reach or reservoir) can have several competing objectives, a separate penalty curve for each objective can be included in the model. Optimization with a Network Row Programming with gains algorithm enables relatively fast runs times for large systems but restricts constraints to capacity limits and mass balance at nodes. PRM has been applied to several large multi-reservoir river systems, such as the Columbia system, the Missouri system and the entire state-wide water resource network of California. HEC-ResPRM is new graphical user interface for PRM that has been developed to facilitate the implementation of large multi-objective reservoir operation studies. The GUI is in large part shared with HEC-ResSim — a multi-reservoir simulation modeling system. The integration of PRM into the HEC-RES modeling platform was made to facilitate the joint development and use of simulation and optimization models. The multi-objective nature of water resource problems is considered and any number of penalty functions with differing units can be added at any network location. A penalty-weight editor facilitates building trade-off curves between objectives by allowing the user to easily change the weight of each penalty type for all locations. Selected preliminary results of a multi-objective reservoir operation study of the Upper Mississippi Reservoir System are presented. This optimization study is part of a "shared vision" planning study, which uses a simulation model to refine the new operation policies suggested by use of the optimization model.
Multiobjective Optimization with HEC Res-PRM — Application to the Upper Mississippi Reservoir System
Faber, Beth A. (author) / Harou, Julien J. (author)
Operations Management Conference 2006 ; 2006 ; Sacramento, California, United States
2006-08-03
Conference paper
Electronic Resource
English
Multiobjective Optimization with HEC Res-PRM-Application to the Upper Mississippi Reservoir System
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