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Huicheng Zhou - One of the best experts on this subject based on the ideXlab platform.
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optimization operation model coupled with improving water transfer Rules and hedging Rules for inter basin water transfer supply systems
Water Resources Management, 2015Co-Authors: Yong Peng, Anbang Peng, Jinggang Chu, Huicheng ZhouAbstract:Due to the great complexity and the nonlinear and dynamic characteristics of joint optimization operations in inter-basin water transfer-supply systems (IBWTS), rational Operating Rules (water-transfer Rules and hedging Rules) are essential in water resources management at the planning stage. Currently, the water-transfer Rules in optimization operation model are not reasonable as there is only one water-transfer Rule curves for each recipient reservoir, so that they cannot reflect the refined water transfer especially when there is a small water shortage. Therefore, the purpose of this study is mainly to develop new water-transfer Rules to improve the effectiveness of water transfer. That is, upper-and-lower water-transfer Rule curves for each recipient reservoir and one water-transfer Rule curve for one donor reservoir are developed to make water-transfer decisions. In the proposed Rule, water transfer involves a combined decision-making process in consideration of water storages of both the recipient and donor reservoirs. Most importantly, when there is less water shortage in recipient reservoirs, the actual transferred water is no more than the water flow interpolated within the designed delivery capacity instead of only the designed delivery capacity in other existing Rules. Because it is an interactive process of water transfer and water supply in the IBWTS operations, operation models coupled with the improving water-transfer Rules and hedging Rules are established for solving the operation problems. Finally, a North-line IBWTS located in Liaoning Province in China is employed as a case study. And a coarse-grained parallel PSO algorithm with a simulation model is employed for effectively deriving the Operating Rule curves (water-transfer and hedging Rule curves). The operation results show that the proposed Rule-based operation model are reasonable and can significantly reduce water transfer with less influence on the water-supply capability than other existing Operating Rules.
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multi reservoir joint Operating Rule in inter basin water transfer supply project
Science China-technological Sciences, 2015Co-Authors: Anbang Peng, Yong Peng, Huicheng Zhou, Chi ZhangAbstract:The joint operation of inter-basin water transfer-supply (IBWTS) project can be more complex when there is joint water demand in multi-reservoir system and multi-importing reservoirs simultaneously transferring water from exporting reservoir. In this study, a joint Operating Rule is proposed for the purpose of solving such complex operation problem. This Rule is composed of a set of sub-Rules, including hedging Rule curves of virtual aggregation reservoir (i.e. equivalent reservoir) and other individual reservoirs, water-transfer Rule curves of each individual reservoir, as well as some of important assisted Rules. These assisted Rules refer to allocation models for water transfer-supply. In the proposed Rule, an equivalent reservoir is established to determine under what condition the water supply should be reduced and specify the total supplied water for joint water demand (i.e. aggregation method). Allocation models are developed to distribute the total transferred water into each importing reservoir and determine the water releases for joint water demand by each member reservoir of the aggregation system (i.e. decomposition method). And these models are integrated with a set of influence factors such as hydrologic characteristics, reservoir storage or vacant storage, regulating ability, water-supply pressure, and so on. The aggregation of multi-reservoirs and the disaggregation of water quantities are taken into a whole consideration to reduce the complexity in reallocation of water target storage or water release. Finally, the proposed Rule is applied to the North-line IBWTS Project in Liaoning Province, China. The results indicate that the proposed Rule can take full advantage of hydrologic compensation in basins and capacity compensation in reservoirs. Thus it can improve the utilization efficiency of water resources in system.
Puji Utomo - One of the best experts on this subject based on the ideXlab platform.
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simulasi pola operasi embung serbaguna tambaksari kabupaten cilacap dengan metode standard Operating Rule sor Operating pattern simulation of tambaksari multipurpose dam in cilacap district using standard Operating Rule sor method
2020Co-Authors: Ines Epti Noniasari, Puji UtomoAbstract:ABSTRAK Kelangsungan hidup manusia bergantung pada ketersediaan sumber daya air yang dimana air merupakan kebutuhan pokok manusia. Semakin bertambahnya jumlah penduduk, maka ketersediaan air akan semakin terbatas. Hal yang harus ditangi dalam mengatasi terjadinya kekeringan pada suatu daerah salah satunya dengan menampung air pada embung. Embung Serbaguna Tambaksari difungsikan dalam memenuhi kebutuhan air baku dan air irigasi bagi masyarakat sekitar. Adanya ketersediaan air dengan kebutuhan air keduanya harus seimbang sehingga perlu dilakukan simulasi pola operasi embung untuk mendistribusi air agar dapat terlaksana secara seimbang serta mengetahui tingkat kegagalan embung dalam melakukan tugasnya. Dalam penelitian ini, dilakukan simulasi pola operasi embung menggunakan metode Standard Operating Rule (SOR). Proses pengerjaan penelitian ini, digunakan data-data sekunder antara lain data penduduk,data hujan, data klimatologi, dan data teknis embung. Luas DAS Tambaksari 0,41 km² sedangkan luas lahan irigasi 12 Ha. Data hujan yang digunakan mulai tahun 2008-2018 dari dua stasiun hujan, data penduduk Desa Tambaksari digunakan data tahun 2008-2019, dan data klimatologi digunakan mulai tahun tahun 2014-2019. Hasil penelitian simulasi pola operasi embung menggunakan metode SOR, dengan cara simulasi dihasilkan bahwa tampungan akhir tidak berada di bawah tampungan minimum dan terjadi kegagalan dalam proses operasi embung selama satu tahun. Kemampuan optimal target release sebesar 70,83% terhadap reliabilitas kebutuhan irigasi dan tingkat reliabilitas terhadap kebutuhan air baku sebesar 58,33%. Melakukan analisis proyeksi penduduk untuk mengetahui jumlah penduduk 20 tahun yaitu 4044 jiwa kedepan dengan kebutuhan air baku sebesar 3,861 lt/org/s. Kebutuhan irigasi dengan pola tanam padi-padi-palawija dihasilkan untuk kebutuhan irigasi di intake sebesar 11,89 lt/s. Neraca air untuk mengetahui keseimbangan antara debit masukan (inflow) dan debit keluaran (outflow). Nilai yang dihasilkan untuk ketersediaan air rata-rata sebesar 0,021 m³/s sedangkan untuk total kebutuhan air rata-rata sebesar 0,016 m³/s. Dapat diketahui bahwa ketersediaan air di intake sebagian belum mampu mencukupi kebutuhan air irigasi dan air baku. Kata kunci: Debit, Simulasi operasi embung, SOR. Abstract Human survival depends on the availability of water resources where water is a basic human need. As the population increases, the availability of water will be increasingly limited. One thing that must be addressed in overcoming drought in an area is by collecting water in the reservoir. Tambaksari Multipurpose Embung functions to meet the needs of raw water and irrigation water for the surrounding community. The availability of water with both water needs must be balanced so that it is necessary to simulate the Operating pattern of the reservoir to distribute water so that it can be carried out in a balanced manner and to know the failure rate of the reservoir in carrying out its duties. In this study, a simulation of the water reservoir Operating pattern was carried out using the Standard Operating Rule (SOR) method. The research used secondary data, including population data, rain data, climatological data, and reservoir technical data. The area of the Tambaksari watershed was 0.41 km² while the area for irrigation was 12 hectares. Rain data used 2008-2018 data from two rain stations, Tambaksari Village population used 2008-2019 data, and climatological data were derived from 2014-2019. The results of the research on the simulation of the reservoir operation pattern using the SOR method, by means of the simulation it was produced that the final reservoir was not below the minimum storage and there was a failure in the reservoir operation process for one year. The optimal ability of the target release was 70.83% for the reliability of irrigation needs and the level of reliability for raw water needs of 58.33%. Analyzing population projection was to determine the population of 20 years, namely 4044 people in the future with raw water needs of 3.861 lt / person / s. The need for irrigation with the cropping pattern of rice-paddy-crops produced for irrigation needs at the intake was 11.89 lt / s. Water balance was to determine the balance between the input discharge (inflow) and the discharge output (outflow). The resulting value for water availability was 0.021 m³ / s on average, while for the total water demand was at the average of 0.016 m³ / s. It can be formulated that the availability of water at the intake had not been able to meet the needs for irrigation water and raw water. Keywords: discharge, embung operation simulation, SOR
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simulasi pola operasi embung serbaguna tambaksari kabupaten cilacap dengan metode standard Operating Rule sor
PROKONS Jurusan Teknik Sipil, 2020Co-Authors: Ines Epti Noniasari, Puji UtomoAbstract:Abstract Human survival depends on water availability as water is a basic needs. As population increases, water becomes more limited. One of the ways to prevent draught is collecting water in retention basin. Tambaksari Multipurpose Retention Basin serves to provide basic water demand and irrigation water for the local community. Water availability and water demand should be equal, so a simulation of the Operating patter of the retention basin is necessary to distribute water equally and determining the failure level of the retention basin in performing its task. In the present study, the retention basin Operating pattern was simulated using Standard Operating Rule (SOR) method. The present study used secondary data, including population data, rainfall data, climatological data and technical data of the retention basin. The size of DAS Tambaksari is 0.41 km² while the size of the irrigated land is 12 Ha. The rainfall data was from 2008-2018 obtained from two rain stations, population data of Tambaksari Village was from 2008-2019, and the climatological data was from 2014-2019. The simulation result of the retention basin Operating pattern using SOR method showed that the final collection wasn’t under minimum collection and failure happened in the operation of the retention basin for one year. . The optimal ability of the target release is 70.83% for the reliability of irrigation needs and the level of reliability for raw water needs of 58.33%. Population projection analysis to determine the population in 20 years showed that the future population of 4044 required 3.861 l/person/s of water. Irrigation demands for rice-rice-palawija planting pattern showed that irrigation intake was 11.89 l/s. Water balance determined the balance between inflow and outflow. The value for average water availability was 0.021 m³/s while total average water demand was 0.016 m³/s. therefore, the water availability in partial intake wasn’t able to meet the irrigation and basic water demands. Keywords: discharge, retention basin operation simulation, SOR
Yong Peng - One of the best experts on this subject based on the ideXlab platform.
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optimization operation model coupled with improving water transfer Rules and hedging Rules for inter basin water transfer supply systems
Water Resources Management, 2015Co-Authors: Yong Peng, Anbang Peng, Jinggang Chu, Huicheng ZhouAbstract:Due to the great complexity and the nonlinear and dynamic characteristics of joint optimization operations in inter-basin water transfer-supply systems (IBWTS), rational Operating Rules (water-transfer Rules and hedging Rules) are essential in water resources management at the planning stage. Currently, the water-transfer Rules in optimization operation model are not reasonable as there is only one water-transfer Rule curves for each recipient reservoir, so that they cannot reflect the refined water transfer especially when there is a small water shortage. Therefore, the purpose of this study is mainly to develop new water-transfer Rules to improve the effectiveness of water transfer. That is, upper-and-lower water-transfer Rule curves for each recipient reservoir and one water-transfer Rule curve for one donor reservoir are developed to make water-transfer decisions. In the proposed Rule, water transfer involves a combined decision-making process in consideration of water storages of both the recipient and donor reservoirs. Most importantly, when there is less water shortage in recipient reservoirs, the actual transferred water is no more than the water flow interpolated within the designed delivery capacity instead of only the designed delivery capacity in other existing Rules. Because it is an interactive process of water transfer and water supply in the IBWTS operations, operation models coupled with the improving water-transfer Rules and hedging Rules are established for solving the operation problems. Finally, a North-line IBWTS located in Liaoning Province in China is employed as a case study. And a coarse-grained parallel PSO algorithm with a simulation model is employed for effectively deriving the Operating Rule curves (water-transfer and hedging Rule curves). The operation results show that the proposed Rule-based operation model are reasonable and can significantly reduce water transfer with less influence on the water-supply capability than other existing Operating Rules.
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multi reservoir joint Operating Rule in inter basin water transfer supply project
Science China-technological Sciences, 2015Co-Authors: Anbang Peng, Yong Peng, Huicheng Zhou, Chi ZhangAbstract:The joint operation of inter-basin water transfer-supply (IBWTS) project can be more complex when there is joint water demand in multi-reservoir system and multi-importing reservoirs simultaneously transferring water from exporting reservoir. In this study, a joint Operating Rule is proposed for the purpose of solving such complex operation problem. This Rule is composed of a set of sub-Rules, including hedging Rule curves of virtual aggregation reservoir (i.e. equivalent reservoir) and other individual reservoirs, water-transfer Rule curves of each individual reservoir, as well as some of important assisted Rules. These assisted Rules refer to allocation models for water transfer-supply. In the proposed Rule, an equivalent reservoir is established to determine under what condition the water supply should be reduced and specify the total supplied water for joint water demand (i.e. aggregation method). Allocation models are developed to distribute the total transferred water into each importing reservoir and determine the water releases for joint water demand by each member reservoir of the aggregation system (i.e. decomposition method). And these models are integrated with a set of influence factors such as hydrologic characteristics, reservoir storage or vacant storage, regulating ability, water-supply pressure, and so on. The aggregation of multi-reservoirs and the disaggregation of water quantities are taken into a whole consideration to reduce the complexity in reallocation of water target storage or water release. Finally, the proposed Rule is applied to the North-line IBWTS Project in Liaoning Province, China. The results indicate that the proposed Rule can take full advantage of hydrologic compensation in basins and capacity compensation in reservoirs. Thus it can improve the utilization efficiency of water resources in system.
Anbang Peng - One of the best experts on this subject based on the ideXlab platform.
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optimization operation model coupled with improving water transfer Rules and hedging Rules for inter basin water transfer supply systems
Water Resources Management, 2015Co-Authors: Yong Peng, Anbang Peng, Jinggang Chu, Huicheng ZhouAbstract:Due to the great complexity and the nonlinear and dynamic characteristics of joint optimization operations in inter-basin water transfer-supply systems (IBWTS), rational Operating Rules (water-transfer Rules and hedging Rules) are essential in water resources management at the planning stage. Currently, the water-transfer Rules in optimization operation model are not reasonable as there is only one water-transfer Rule curves for each recipient reservoir, so that they cannot reflect the refined water transfer especially when there is a small water shortage. Therefore, the purpose of this study is mainly to develop new water-transfer Rules to improve the effectiveness of water transfer. That is, upper-and-lower water-transfer Rule curves for each recipient reservoir and one water-transfer Rule curve for one donor reservoir are developed to make water-transfer decisions. In the proposed Rule, water transfer involves a combined decision-making process in consideration of water storages of both the recipient and donor reservoirs. Most importantly, when there is less water shortage in recipient reservoirs, the actual transferred water is no more than the water flow interpolated within the designed delivery capacity instead of only the designed delivery capacity in other existing Rules. Because it is an interactive process of water transfer and water supply in the IBWTS operations, operation models coupled with the improving water-transfer Rules and hedging Rules are established for solving the operation problems. Finally, a North-line IBWTS located in Liaoning Province in China is employed as a case study. And a coarse-grained parallel PSO algorithm with a simulation model is employed for effectively deriving the Operating Rule curves (water-transfer and hedging Rule curves). The operation results show that the proposed Rule-based operation model are reasonable and can significantly reduce water transfer with less influence on the water-supply capability than other existing Operating Rules.
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multi reservoir joint Operating Rule in inter basin water transfer supply project
Science China-technological Sciences, 2015Co-Authors: Anbang Peng, Yong Peng, Huicheng Zhou, Chi ZhangAbstract:The joint operation of inter-basin water transfer-supply (IBWTS) project can be more complex when there is joint water demand in multi-reservoir system and multi-importing reservoirs simultaneously transferring water from exporting reservoir. In this study, a joint Operating Rule is proposed for the purpose of solving such complex operation problem. This Rule is composed of a set of sub-Rules, including hedging Rule curves of virtual aggregation reservoir (i.e. equivalent reservoir) and other individual reservoirs, water-transfer Rule curves of each individual reservoir, as well as some of important assisted Rules. These assisted Rules refer to allocation models for water transfer-supply. In the proposed Rule, an equivalent reservoir is established to determine under what condition the water supply should be reduced and specify the total supplied water for joint water demand (i.e. aggregation method). Allocation models are developed to distribute the total transferred water into each importing reservoir and determine the water releases for joint water demand by each member reservoir of the aggregation system (i.e. decomposition method). And these models are integrated with a set of influence factors such as hydrologic characteristics, reservoir storage or vacant storage, regulating ability, water-supply pressure, and so on. The aggregation of multi-reservoirs and the disaggregation of water quantities are taken into a whole consideration to reduce the complexity in reallocation of water target storage or water release. Finally, the proposed Rule is applied to the North-line IBWTS Project in Liaoning Province, China. The results indicate that the proposed Rule can take full advantage of hydrologic compensation in basins and capacity compensation in reservoirs. Thus it can improve the utilization efficiency of water resources in system.
Shenglian Guo - One of the best experts on this subject based on the ideXlab platform.
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a novel framework of deriving joint impoundment Rules for large scale reservoir system based on a classification aggregation decomposition approach
Hydrology and Earth System Sciences Discussions, 2020Co-Authors: Shenglian Guo, Kebing Chen, Zhen Liao, Lele Deng, Dimitri SolomatineAbstract:Abstract. Joint and optimal impoundment operation of the large-scale reservoir system has become more crucial for modern water management. Since the existing techniques fail to optimize the large-scale multi-objective impoundment operation due to the complex inflow stochasticity and high dimensionality, we develop a novel combination of parameter simulation optimization and classification-aggregation-decomposition approach here to overcome these obstacles. There are four main steps involved in our proposed framework: (1) reservoirs classification based on geographical location and flood prevention targets; (2) assumption of a hypothetical single reservoir in the same pool; (3) the derivation of the initial impoundment policies by the non-dominated sorting genetic algorithm-II (NSGA-II); (4) further improvement of the impoundment policies via Parallel Progressive Optimization Algorithm (PPOA). The framework potential is performed on China's mixed 30-reservoir system in the upper Yangtze River. Results indicate that our method can provide a series of schemes to refer to different flood event scenarios. The best scheme outperforms the conventional Operating Rule, as it increases impoundment efficiency from 89.50 % to 94.16 % and hydropower generation by 7.70 billion kWh (or increase 3.79 %) while flood control risk is less than 0.06.
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incorporating ecological requirement into multipurpose reservoir Operating Rule curves for adaptation to climate change
Journal of Hydrology, 2013Co-Authors: Yanlai Zhou, Shenglian GuoAbstract:Summary Operating Rule curves have been widely applied to reservoir operation, due to their ease of implementation. However, these curves excluding ecological requirement are generally derived from observed or synthetic flows and have rarely been determined by future flows under climate change. This paper develops an integrated adaptive optimization model (IAOM) for derivation of multipurpose reservoir Operating Rule curves including ecological Operating Rule curve under future climate change. Steps in the proposed IAOM include: (1) weather generator module to generate feasible future climate conditions, (2) VIC model as the hydrological simulation module to generate streamflows from those future weather conditions, and (3) multipurpose reservoir optimization module to determine the optimal reservoir operations to deal with climate change. China’s Danjiangkou reservoir in Han River basin is selected for a case study. The results demonstrate that the IAOM provides optimal multipurpose reservoir Operating Rule curves that reflect the hydrologic characteristics of future climate change. Ecological supply water operation will alleviate negative effect of dam on river ecosystem without reducing conservation benefits and flood control standard. Therefore, they can consult with reservoir administrators if it is useful results for operations.
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derivation of aggregation based joint Operating Rule curves for cascade hydropower reservoirs
Water Resources Management, 2011Co-Authors: Pan Liu, Shenglian Guo, Jionghong ChenAbstract:Operating Rule curves have been widely applied to reservoir operation, due to their ease of implementation. However, these curves are generally used for single reservoirs and have rarely been applied to cascade reservoirs. This study was conducted to derive joint Operating Rule curves for cascade hydropower reservoirs. Steps in the proposed methodology include: (1) determining the optimal release schedule using dynamic programming to solve a deterministic long-term operation model, (2) identifying the forms of Operating Rule curves suitable for cascade hydropower reservoirs based on the optimal release schedule, (3) constructing a simulation-based optimization model and then using the non-dominated sorting genetic algorithm-II (NSGA-II) to identify the key points of the Operating Rule curves, (4) testing and verifying the efficiency of the generated joint Operating Rule curves using synthetic inflow series. China’s Qing River cascade hydropower reservoirs (the Shuibuya, Geheyan and Gaobazhou reservoirs) were selected for a case study. When compared with the conventional Operating Rule curves, the annual power generation can be increased by 2.62% (from 7.27 to 7.46 billion kWh) using the observed inflow from 1951 to 2005, as well as by about 1.77% and 2.52% using the synthetic inflows generated from two alternative hydrologic simulation methods. Linear Operating Rules were also implemented to simulate coordinated operation of the Qing River cascade hydropower reservoirs. The joint Operating Rule curves were more efficient and reliable than conventional Operating Rule curves and linear Operating Rules, indicating that the proposed method can greatly improve hydropower generation and work stability.