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Improving Flood Control Optimal Operation of River-Type Cascade Reservoirs through Coupling with 1D Hydrodynamic Model.

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Title: Improving Flood Control Optimal Operation of River-Type Cascade Reservoirs through Coupling with 1D Hydrodynamic Model.
Authors: Yao, Lishuang1 (AUTHOR) yaolishuang@ncepu.edu.cn, Peng, Yang1 (AUTHOR) pengyang@ncepu.edu.cn, Yu, Xianliang1 (AUTHOR) yuxianliang@ncepu.edu.cn, Zhang, Zhihong1 (AUTHOR) a18810903013@163.com, Luo, Shiqi1 (AUTHOR) 120212138004@ncepu.edu.cn
Source: Water Resources Management. May2025, Vol. 39 Issue 7, p3443-3466. 24p.
Subject Terms: *One-dimensional flow, *Unsteady flow, *Flood control, *Flow simulations, *Parallel programming
Abstract: River-type cascade reservoirs are hydraulically connected and have a dynamic reservoir capacity. Previous studies on the flood control optimal operation (FCOO) of cascade reservoirs have considered the hydraulic connections among them, but the scheduling calculations were typically based on a static capacity approach, which is inadequate for river-type reservoirs. To address this issue, an improved model for FCOO in river-type cascade reservoirs is proposed by coupling a one-dimensional hydrodynamic model. The improved model depicts both the hydraulic connections among reservoirs and the transformation of reservoir states using one-dimensional unsteady flow simulations. Additionally, a term accounting for the temporal variation in wedge-shaped reservoir capacity is incorporated into the traditional objective function. Parallel dynamic programming successive approximation is combined with improved discrete differential dynamic programming to solve this model. The applicability of the improved model is demonstrated through its application to the Xiangjiaba Reservoir (XJB) and Three Gorges Reservoir (TGR). Compared with the static capacity method, the improved model reduces the maximum flow at Lizhuang station by 266 m3/s for the XJB, but increases the dam-front water level by 0.12 m and the maximum flow at Zhicheng station by 3,159 m3/s for the TGR. This is because the improved model considers the floodwater retention at the tail of the reservoir and from previous flood processes. The extra term in the objective function is found to contribute to the proposed model's superior performance. This research provides reliable information for refined FCOO simulations in river-type cascade reservoirs. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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An: 185811111
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Improving Flood Control Optimal Operation of River-Type Cascade Reservoirs through Coupling with 1D Hydrodynamic Model.
– Name: Author
  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Yao%2C+Lishuang%22">Yao, Lishuang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> yaolishuang@ncepu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Peng%2C+Yang%22">Peng, Yang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> pengyang@ncepu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Yu%2C+Xianliang%22">Yu, Xianliang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> yuxianliang@ncepu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Zhang%2C+Zhihong%22">Zhang, Zhihong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> a18810903013@163.com</i><br /><searchLink fieldCode="AR" term="%22Luo%2C+Shiqi%22">Luo, Shiqi</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> 120212138004@ncepu.edu.cn</i>
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  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Water+Resources+Management%22">Water Resources Management</searchLink>. May2025, Vol. 39 Issue 7, p3443-3466. 24p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22One-dimensional+flow%22">One-dimensional flow</searchLink><br />*<searchLink fieldCode="DE" term="%22Unsteady+flow%22">Unsteady flow</searchLink><br />*<searchLink fieldCode="DE" term="%22Flood+control%22">Flood control</searchLink><br />*<searchLink fieldCode="DE" term="%22Flow+simulations%22">Flow simulations</searchLink><br />*<searchLink fieldCode="DE" term="%22Parallel+programming%22">Parallel programming</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: River-type cascade reservoirs are hydraulically connected and have a dynamic reservoir capacity. Previous studies on the flood control optimal operation (FCOO) of cascade reservoirs have considered the hydraulic connections among them, but the scheduling calculations were typically based on a static capacity approach, which is inadequate for river-type reservoirs. To address this issue, an improved model for FCOO in river-type cascade reservoirs is proposed by coupling a one-dimensional hydrodynamic model. The improved model depicts both the hydraulic connections among reservoirs and the transformation of reservoir states using one-dimensional unsteady flow simulations. Additionally, a term accounting for the temporal variation in wedge-shaped reservoir capacity is incorporated into the traditional objective function. Parallel dynamic programming successive approximation is combined with improved discrete differential dynamic programming to solve this model. The applicability of the improved model is demonstrated through its application to the Xiangjiaba Reservoir (XJB) and Three Gorges Reservoir (TGR). Compared with the static capacity method, the improved model reduces the maximum flow at Lizhuang station by 266 m3/s for the XJB, but increases the dam-front water level by 0.12 m and the maximum flow at Zhicheng station by 3,159 m3/s for the TGR. This is because the improved model considers the floodwater retention at the tail of the reservoir and from previous flood processes. The extra term in the objective function is found to contribute to the proposed model's superior performance. This research provides reliable information for refined FCOO simulations in river-type cascade reservoirs. [ABSTRACT FROM AUTHOR]
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1007/s11269-025-04116-7
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 24
        StartPage: 3443
    Subjects:
      – SubjectFull: One-dimensional flow
        Type: general
      – SubjectFull: Unsteady flow
        Type: general
      – SubjectFull: Flood control
        Type: general
      – SubjectFull: Flow simulations
        Type: general
      – SubjectFull: Parallel programming
        Type: general
    Titles:
      – TitleFull: Improving Flood Control Optimal Operation of River-Type Cascade Reservoirs through Coupling with 1D Hydrodynamic Model.
        Type: main
  BibRelationships:
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      – PersonEntity:
          Name:
            NameFull: Yao, Lishuang
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          Name:
            NameFull: Peng, Yang
      – PersonEntity:
          Name:
            NameFull: Yu, Xianliang
      – PersonEntity:
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            NameFull: Zhang, Zhihong
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          Name:
            NameFull: Luo, Shiqi
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          Dates:
            – D: 01
              M: 05
              Text: May2025
              Type: published
              Y: 2025
          Identifiers:
            – Type: issn-print
              Value: 09204741
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            – Type: volume
              Value: 39
            – Type: issue
              Value: 7
          Titles:
            – TitleFull: Water Resources Management
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