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Stable Improved Dynamic Programming Method: An Efficient and Accurate Method for Optimization of Reservoir Flood Control Operation

Author

Listed:
  • Fuxin Chai

    (State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China, Institute of Water Resource and Hydropower Research
    Research Center On Flood and Drought Disaster Reduction, China, Institute of Water Resources and Hydropower Research)

  • Feng Peng

    (State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China, Institute of Water Resource and Hydropower Research
    Research Center On Flood and Drought Disaster Reduction, China, Institute of Water Resources and Hydropower Research)

  • Hongping Zhang

    (Research Center On Flood and Drought Disaster Reduction, China, Institute of Water Resources and Hydropower Research)

  • Wenbin Zang

    (Research Center On Flood and Drought Disaster Reduction, China, Institute of Water Resources and Hydropower Research)

Abstract

The optimal algorithm to ensure computational efficiency and accuracy remains to be challenging for the development of robust operation model to solve the optimization problem of reservoir operation, particularly for applications involving flood control with complex flood hydrograph. The dynamic programming (DP) is one of the most popular methods to solve optimization problem, but it is limited the “curse of dimensionality” problem. The improved dynamic programming (IDP) method has been proposed to overcome this defeat of DP, remaining the convergence problem. The relaxation method based on approximate monotonic relationship shows potential to ensure convergence of IDP. In this study, the theoretical search range of the relaxation method are analyzed. A stable improved dynamic programming (SIDP) method is proposed based on relaxation method and a prediction method of schedulable storage states. The proposed SIDP overcomes the complex computational problem of DP and the convergence problem of IDP. The case study on an ideal reservoir and the Guanting reservoir, shows that SIDP can achieve an accuracy as high as DP, but with a much higher efficiency than DP. This method shows a strong solution to optimization problems of reservoir flood control operation.

Suggested Citation

  • Fuxin Chai & Feng Peng & Hongping Zhang & Wenbin Zang, 2023. "Stable Improved Dynamic Programming Method: An Efficient and Accurate Method for Optimization of Reservoir Flood Control Operation," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 37(14), pages 5635-5654, November.
    • Handle: RePEc:spr:waterr:v:37:y:2023:i:14:d:10.1007_s11269-023-03622-w
    DOI: 10.1007/s11269-023-03622-w
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