Results 31 to 40 of about 597 (201)
Global Energy Interconnection, 2020 There have been few studies on the hydropower exploitation plan for sections beyond the Inga hydropower project (HPP) in the lower reaches of the Congo River.
Chuanyu Deng, Fulong Song, Zhengxi Chen
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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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AIP AdvancesIn wind power prediction, the input probability distributions in the different sub-periods are shifted owing to the strong randomness of the input features, such as wind speed and direction.
Dan Li +5 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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Joint Optimal Operation of Wind Power Plant and Cascade Hydropower Station
IOP Conference Series: Earth and Environmental Science, 2021 Abstract With the depletion of fossil energy, the whole people advocate energy conservation and emission reduction, making the scale of wind power integration increase. While wind power has fluctuating and intermittent characteristics, this paper develops a short-term combined operation strategy of wind and water using the flexible ...
Di Jiang +3 more
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River, EarlyView.This figure elaborates the scientific connotation and systematic construction path of ecological dams. Adopting a full‐cycle analysis framework centered on ecological impacts and benefits throughout the project lifecycle, it covers four key stages from planning to post‐completion, with core focuses on risk avoidance, impact control, ecological health ...
Jianhua Wang +3 more
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Practical Day‐Ahead Gas Generator Dispatch Optimisation for Enhancing the Reserved Capacity
IET Smart Energy Systems, EarlyView.Practical day‐ahead gas generator dispatch optimisation model is proposed to enhance the system reserved capacity. ABSTRACT In order to reduce carbon dioxide emissions, traditional coal‐fired power generation has been strictly limited in China recently, which has led to the problem of reserved capacity shortage. As one of the critical east provinces of
Shengyuan Liu +6 more
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Sex‐Specific Atlantic Salmon Upstream Passage and Fallback at a Natural Cascade After Dam Removal
Fisheries Management and Ecology, EarlyView.ABSTRACT In the Boquet River (NY, USA) a low‐head dam set above a ~200‐m bedrock cascade was removed in 2015. We used radio‐telemetry to assess landlocked Atlantic salmon passage at the remaining cascade (2020, 2022). Across years, 52% of males (13/25) attempted cascade passage whereas females made no discernable attempts (0/11).
Kurt C. Heim +5 more
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