Results 31 to 40 of about 465 (205)
四川大学学报. 自然科学版, 2021 Based on related researches on the index system and evaluation approache of green hydropower at home and abroad, with respect to the characteristics of cascade hydropower development environmental protection in river basin t and the life cycle management
GAO Ya-Qin, LIU Guo-Dong
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Frontiers in Energy Research, 2022 The electricity market is evolving rapidly from pre-bid to spot markets, where the transactions between producers and consumers have become crucial and are vulnerable to safety risks.
Shuai Zhang +5 more
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Optimal Daily Operation of Cascade Hydropower Stations
Journal of Water Resources Research, 2014 采用以水定电和以电定水两种运行方式，分别以发电量最大和总耗水量最小为目标函数，建立了梯级水电站群日优化调度模型，并采用动态规划方法进行求解。使用梯级水电站群日发电资料和径流资料(2013年7月~12月)的应用检验结果表明，优化调度较实际调度提高发电量约0.67亿kW·h(增加11.54%)和减少耗水量0.26亿m3(减少−0.89%)，发电保证率由92%提高到100%，显著提高了水电站群的发电效益。Daily operation models for cascade hydropower stations were proposed and developed in this paper.
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Redistributive effects of unsteady flow regimes downstream of reservoirs
River, EarlyView.Abstract Understanding unsteady flow regimes in river channels downstream of a reservoir, is essential for predicting and regulating water level and flow velocity in the lower basin. Using hourly observations of discharge and water level at Xiangjiaba Station from 2018 to 2022, an evaluation indicator was proposed to analyze unsteady flow regimes ...
Guoshuai Zhang +4 more
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Temporal dynamics of the hydropower water reservoirs of the Tocantins–Araguaia Basin, Brazil, based on remote sensing and hydrometeorological station datasets [PDF]
, 2023 The Tocantins–Araguaia Basin covers an extensive area of Brazilian territory and has a water reservoir system installed in a cascade that is very important for water storage and hydropower production.
Almeida, Tati de +5 more
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Analysis of Reservoir Regulation Capacity Based on Cascade POA Optimal Scheduling Model
Renmin Zhujiang, 2021 Due to the completion of the cascade reservoirs,the hydrological process of the basin has changed significantly,and the scheduling of the existing reservoirs has changed.The assessment of the regulation capacity of the existing reservoirs will help to re-
HOU Jiaqi +3 more
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Coordinated operation method of cascade hydropower stations considering runoff error
Journal of Physics: Conference Series, 2022 Abstract The traditional collaborative scheduling method of cascade hydropower stations group has the problem of imperfect regression model, which leads to excessive water consumption rate. A collaborative scheduling method of cascade hydropower stations group considering runoff error is designed. The influence factors of runoff forecast
Miao You, Kongfei Hu
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River, EarlyView.Abstract Nepal's vast hydropower potential is central to its long‐term economic development; however, it exhibits pronounced spatial heterogeneity and is increasingly vulnerable to climate‐induced risks. This study employs an integrated, Basin‐scale analytical framework to evaluate the hydrological productivity and economic viability of major river ...
Sanju Adhikary, Mahendra Aryal
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, 2020 The files in this record contain data for cloud-based multi-dimensional parallel dynamic programming algorithm for a hydropower station system considered for publication in Water Resources Research. The files consist of: cascade reservoir system data;
Xu, Bin +6 more
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Frontiers in Environmental ScienceIntroduction: Cascade hydropower development significantly alters the structure and function of river ecosystems. Phytoplankton, as primary producers, are highly sensitive to environmental changes, and their diversity and community structure reflect the ...
Qiyong Luo +10 more
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