Abstract
Real-time optimal operation models for river-reservoir systems, unfortunately, are not widely available. Such models are still in their infancy perhaps due to the complexity of the application. This paper presents the development and testing of a methodology for determining reservoir release schedules before, during, and after an extreme flood event in real time. The problem is formulated as a real-time optimal control problem in which reservoir releases represent the decision variables. The model consists of five major components: (1) the U.S. Army Corps of Engineers (USACE) Hydrologic Engineering Center - Hydrologic Modeling System (HEC-HMS), which simulates rainfall-runoff processes of watershed systems; (2) the U.S. Army Corps of Engineers Hydrologic Engineering Center - River Analysis System (HEC-RAS) for one-dimensional unsteady flow routing; (3) a reservoir release operation model; (4) a short-term rainfall forecasting model to project rainfall over the next few hours during a rainfall event; and (5) a genetic algorithm (GA) optimizer interfaced with the other components that determine the real time operation of a river-reservoir systems. An example application is used to test the development of the modeling framework, also illustrating the use of such a model. Each model component and its interface in the modeling framework was tested for quality assurance.
Original language | English (US) |
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Pages (from-to) | 3987-4005 |
Number of pages | 19 |
Journal | Water Resources Management |
Volume | 29 |
Issue number | 11 |
DOIs | |
State | Published - Sep 27 2015 |
Keywords
- Flood control operation
- Flood forecasting
- Genetic algorithms
- Optimization
- Rainfall forecasting
- Rainfall-runoff models
- Real-time operation
- Reservoir operation
- Unsteady flow routing
ASJC Scopus subject areas
- Civil and Structural Engineering
- Water Science and Technology