Results 21 to 30 of about 5,488 (173)

Optimization and Rule Analysis of Drawdown Level before Flood Season of Longtan Hydropower Station

open access: yesRenmin Zhujiang, 2023
Longtan Hydropower Station is the controlled reservoir of the Hongshui River.It is of significance for flood control,water supply,and power safety to study the optimal drawdown level before flood seasons in this station.Based on analyzing the drawdown ...
LIU Yongqi   +5 more
doaj  

Past Industrial Traces of the Jasień River in the Tourism Space of Łódź [PDF]

open access: yes, 2017
In the paper the characteristics of one of the most valuable rivers in Łódź, the Jasień, are described. The Jasień is a unique example of a river once working for industry but now existing as untapped tourism potential despite its negative image and even
Jędruszkiewicz, Joanna   +1 more
core   +1 more source

Simulation of hydraulic power matching–based risk and economic evaluation among cascade hydropower stations in spot transactions

open access: yesFrontiers 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
doaj   +1 more source

Assessing temporal complementarity between three variable energy sources by means of correlation and compromise programming

open access: yes, 2019
Renewable energies are deployed worldwide to mitigate climate change and push power systems towards sustainability. However, the weather-dependent nature of renewable energy sources often hinders their integration to national grids.
Beluco, Alexandre   +3 more
core   +1 more source

MODEL OF A CASCADE OF DIVERSION HYDROELECTRIC POWER PLANTS WITH FUZZY LOGIC CONTROLLER

open access: yesВестник Северо-Кавказского федерального университета, 2022
Diversion hydropower plants are one of the most environmentally friendly sources of energy, and improving the efficiency of water resources is an important task.
L. Tolstikhina, D. Glashev
doaj  

Coordinated operation method of cascade hydropower stations considering runoff error

open access: yesJournal 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
openaire   +1 more source

Joint Optimal Operation of Wind Power Plant and Cascade Hydropower Station

open access: yesIOP 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
openaire   +1 more source

The Future of Power Storage in South Eastern Europe [PDF]

open access: yes, 2014
The European Commission’s Joint Research Centre (JRC) and the Ministry of Energy and Industry of Albania held a joint workshop on the future role of energy storage in South Eastern Europe on 21 -22 October in Tirana.
BEJTULLAHU Naim   +16 more
core   +1 more source

Analysis of Reservoir Regulation Capacity Based on Cascade POA Optimal Scheduling Model

open access: yesRenmin 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
doaj  

Optimal Daily Operation of Cascade Hydropower Stations

open access: yesJournal 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.
openaire   +1 more source

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