Utilizing the Sobol’ Sensitivity Analysis Method to Address the Multi-Objective Operation Model of Reservoirs

The operation of reservoirs has significantly influenced the river ecological system. Upholding the ecological integrity of rivers during reservoir operations has been the focus of research over the years. When the Dahuofang reservoir project started, focus moved to ecological goals to address the B...

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Main Authors: Haixia Wang, Ying Zhao, Wenyuan Fu
Format: Article
Language:English
Published: MDPI AG 2023-10-01
Series:Water
Subjects:
Online Access:https://www.mdpi.com/2073-4441/15/21/3795
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author Haixia Wang
Ying Zhao
Wenyuan Fu
author_facet Haixia Wang
Ying Zhao
Wenyuan Fu
author_sort Haixia Wang
collection DOAJ
description The operation of reservoirs has significantly influenced the river ecological system. Upholding the ecological integrity of rivers during reservoir operations has been the focus of research over the years. When the Dahuofang reservoir project started, focus moved to ecological goals to address the Biliuhe reservoir’s environmental issues. The water strategy limits usage for various purposes and outlines the diversion route, complicating Biliuhe operations. In this study, to comprehend the effects of individual water level guidelines and their combined influence on these goals, the Sobol’ sensitivity analysis was introduced as an initial measure to tackle the optimization challenge. The results show that removing the insensitive water levels during specific periods of reservoir scheduling lines and beginning with sensitive water levels for local optimization to identify viable solutions, and then moving to wider optimization, significantly enhances the search efficiency, solution quality, and operational speed compared with an exhaustive search without any preceding steps. This sensitivity analysis technique is crucial for fine-tuning multi-objective reservoir operations.
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spelling doaj.art-af91822bbb80405e9e32e4ab2ed53d952023-11-10T15:15:21ZengMDPI AGWater2073-44412023-10-011521379510.3390/w15213795Utilizing the Sobol’ Sensitivity Analysis Method to Address the Multi-Objective Operation Model of ReservoirsHaixia Wang0Ying Zhao1Wenyuan Fu2School of Hydraulic Engineering, Ludong University, Yantai 264025, ChinaSchool of Resources and Environmental Engineering, Ludong University, Yantai 264025, ChinaSchool of Hydraulic Engineering, Ludong University, Yantai 264025, ChinaThe operation of reservoirs has significantly influenced the river ecological system. Upholding the ecological integrity of rivers during reservoir operations has been the focus of research over the years. When the Dahuofang reservoir project started, focus moved to ecological goals to address the Biliuhe reservoir’s environmental issues. The water strategy limits usage for various purposes and outlines the diversion route, complicating Biliuhe operations. In this study, to comprehend the effects of individual water level guidelines and their combined influence on these goals, the Sobol’ sensitivity analysis was introduced as an initial measure to tackle the optimization challenge. The results show that removing the insensitive water levels during specific periods of reservoir scheduling lines and beginning with sensitive water levels for local optimization to identify viable solutions, and then moving to wider optimization, significantly enhances the search efficiency, solution quality, and operational speed compared with an exhaustive search without any preceding steps. This sensitivity analysis technique is crucial for fine-tuning multi-objective reservoir operations.https://www.mdpi.com/2073-4441/15/21/3795sensitivity analysismulti-objective operationpreceding stepSobol’ method
spellingShingle Haixia Wang
Ying Zhao
Wenyuan Fu
Utilizing the Sobol’ Sensitivity Analysis Method to Address the Multi-Objective Operation Model of Reservoirs
Water
sensitivity analysis
multi-objective operation
preceding step
Sobol’ method
title Utilizing the Sobol’ Sensitivity Analysis Method to Address the Multi-Objective Operation Model of Reservoirs
title_full Utilizing the Sobol’ Sensitivity Analysis Method to Address the Multi-Objective Operation Model of Reservoirs
title_fullStr Utilizing the Sobol’ Sensitivity Analysis Method to Address the Multi-Objective Operation Model of Reservoirs
title_full_unstemmed Utilizing the Sobol’ Sensitivity Analysis Method to Address the Multi-Objective Operation Model of Reservoirs
title_short Utilizing the Sobol’ Sensitivity Analysis Method to Address the Multi-Objective Operation Model of Reservoirs
title_sort utilizing the sobol sensitivity analysis method to address the multi objective operation model of reservoirs
topic sensitivity analysis
multi-objective operation
preceding step
Sobol’ method
url https://www.mdpi.com/2073-4441/15/21/3795
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AT wenyuanfu utilizingthesobolsensitivityanalysismethodtoaddressthemultiobjectiveoperationmodelofreservoirs