نتایج جستجو برای: hydropower

تعداد نتایج: 3798  

2016
Bowei Hu Jingtao Sun Lijie Ding Xinyu Liu Xiaoru Wang Ying-Yi Hong

Abstract: At present, the common practice in the power system of China is to represent the small and medium hydropower generator group as a negative load. This paper presents a method to build a dynamic equivalent model of the hydropower generator group using a 3rd order generator model and a static characteristic load model. Based on phasor measurements in the tie line which connects to the mo...

2013
T. R. Neelakantan

Standard operating policy and hedging policies are commonly used for reservoir operation for municipal or irrigation water supply. Application of these policies to hydropower reservoir operation is complex. In this paper, new standard operating policies and standard hedging policy are proposed for hydropower reservoir operation. The newly proposed policies were applied to the operation of Indir...

2008
Kaveh Madani Jay R. Lund

California’s hydropower system is composed of high and low elevation power plants. There are more than 150 high-elevation power plants, at elevations above 1,000 feet (300 m). Most have modest reservoir storage capacities, but supply roughly 74% of California’s in-state hydropower. The expected shift of runoff peak from spring to winter due to climate warming, resulting in snowpack reduction an...

2010
Lea Kosnik

In an earlier paper (Kosnik, 2008), the potential for small scale hydropower to contribute to US renewable energy supplies, as well as reduce current carbon emissions, was investigated. It was discovered that thousands of viable sites capable of producing significant amounts of hydroelectric power were available throughout the United States. The primary objective of this paper is to determine t...

2015
M. Mohsin Munir A. S. Shakir Noor M. Khan

Pakistan is facing serious shortfall of electricity for few decades. Small hydropower projects can alleviate the worsening situation. The sizing of a low head hydropower plant plays a vital role in establishing the feasibility of the project. The plant needs to be optimized for energy produced, efficiencies of the plant components, number of units and its financial/economic parameters. This pap...

2005
Thomas Rauschenbach

River hydropower plants must accomplish several tasks. They have to generate electric energy, guarantee the navigation and reduce the extent of a flood if possible. If there is a cascade of hydropower stations in a river, then it is not possible to solve these tasks with a decentralized control strategy optimally. One is faced with a multiple criteria optimization problem. This contribution pre...

2008
Judith Plummer

The chronic shortage of electricity supply in India impedes economic development and poverty reduction. More than 40 percent of households, most of them in rural areas, lack access to electricity. With the aim of extending access to electricity to all households by 2012, the government has launched a program to add 100,000 megawatts of generating capacity. Recognizing that meeting much of this ...

The industry development and the life standards increment have caused the human feels more easement, but it also has caused an increase of energy consumption, environmental pollution and the large volume of greenhouse gases emission. Those changes make the researchers to find out the alternative energy sources such as renewable energies. The most prominent and the oldest source of clean and re...

2018
Yuan Si Xiang Li Dongqin Yin Ronghua Liu Jiahua Wei Yuefei Huang Tiejian Li Jiahong Liu Shenglong Gu Guangqian Wang

The hydropower system in the Upper Yellow River (UYR), one of the largest hydropower bases in China, plays a vital role in the energy structure of the Qinghai Power Grid. Due to management difficulties, there is still considerable room for improvement in the joint operation of this system. This paper presents a general LINGO-based integrated framework to study the operation of the UYR hydropowe...

2017
Declan Conway Willem A. Landman J. Osborn

© 2017 Macmillan Publishers Limited, part of Springer Nature. All rights reserved. © 2017 Macmillan Publishers Limited, part of Springer Nature. All rights reserved. 1Grantham Research Institute on Climate Change and the Environment, London School of Economics and Political Science, Houghton Street, London, UK. 2Institute for Sustainable Resources, Bartlett School of Environment, Energy and Res...

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