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Some Aspects of Ice-Hydropower Interaction in a Changing Climate

Gebre, Solomon; Timalsina, Netra; Alfredsen, Knut - In: Energies 7 (2014) 3, pp. 1641-1655

Ice formation and related processes in rivers and lakes/reservoirs influence the operation of hydropower plants in cold … regions. It is a matter of interest to the scientific community and hydropower operators alike how existing ice effects and … may have both positive and negative consequences for hydropower operation. Positive consequences emerge from reduction in …

Persistent link: https://www.econbiz.de/10010752743

Dynamic Feasible Region Genetic Algorithm for Optimal Operation of a Multi-Reservoir System

Xu, Bin; Zhong, Ping-An; Wan, Xinyu; Zhang, Weiguo; … - In: Energies 5 (2012) 8, pp. 2894-2910

Seeking the optimal strategy of a multi-reservoir system is an important approach to develop hydropower energy, in …

Persistent link: https://www.econbiz.de/10010675987

Finding Multiple Optimal Solutions to Optimal Load Distribution Problem in Hydropower Plant

Liu, Pan; Nguyen, Tri-Dung; Cai, Ximing; Jiang, Xinhao - In: Energies 5 (2012) 5, pp. 1413-1432

Optimal load distribution (OLD) among generator units of a hydropower plant is a vital task for hydropower generation …. However, many practical constraints on hydropower plant operation are very difficult, if not impossible, to be modeled, and … multiple optimal solutions exist for the case study of China’s Geheyan hydropower plant, and they are valuable for assessing …

Persistent link: https://www.econbiz.de/10010676000

Failure Test and Finite Element Simulation of a Large Wind Turbine Composite Blade under Static Loading

Chen, Xiao; Zhao, Wei; Zhao, Xiao Lu; Xu, Jian Zhong - In: Energies 7 (2014) 4, pp. 2274-2297

This study presented a failure analysis of a 52.3 m composite wind turbine blade under static loading. Complex failure characteristics exhibited at the transition region of the blade were thoroughly examined and typical failure modes were indentified. In order to predict multiple failure modes...

Persistent link: https://www.econbiz.de/10010757620

A General Probabilistic Forecasting Framework for Offshore Wind Power Fluctuations

Trombe, Pierre-Julien; Pinson, Pierre; Madsen, Henrik - In: Energies 5 (2012) 3, pp. 621-657

Accurate wind power forecasts highly contribute to the integration of wind power into power systems. The focus of the present study is on large-scale offshore wind farms and the complexity of generating accurate probabilistic forecasts of wind power fluctuations at time-scales of a few minutes....

Persistent link: https://www.econbiz.de/10010668063

Review of DC System Technologies for Large Scale Integration of Wind Energy Systems with Electricity Grids

Shao, Sheng Jie; Agelidis, Vassilios G. - In: Energies 3 (2010) 6, pp. 1303-1319

The ever increasing development and availability of power electronic systems is the underpinning technology that enables large scale integration of wind generation plants with the electricity grid. As the size and power capacity of the wind turbine continues to increase, so is the need to place...

Persistent link: https://www.econbiz.de/10010668190

Feasibility Study of Micro-Wind Turbines for Powering Wireless Sensors on a Cable-Stayed Bridge

Park, Jong-Woong; Jung, Hyung-Jo; Jo, Hongki; Spencer, … - In: Energies 5 (2012) 9, pp. 3450-3464

In this study, the feasibility of using micro-wind turbines to power wireless sensors on a cable-stayed bridge is comprehensively investigated. To this end, the wind environment around a bridge onto which a turbine is installed is examined, as is the power consumption of a wireless sensor....

Persistent link: https://www.econbiz.de/10010676053

Torsional Stiffness Effects on the Dynamic Stability of a Horizontal Axis Wind Turbine Blade

Jeong, Min-Soo; Lee, In; Yoo, Seung-Jae; Park, Kwang-Choon - In: Energies 6 (2013) 4, pp. 2242-2261

Aeroelastic instability problems have become an increasingly important issue due to the increased use of larger horizontal axis wind turbines. To maintain these large structures in a stable manner, the blade design process should include studies on the dynamic stability of the wind turbine...

Persistent link: https://www.econbiz.de/10010676105

Economic Modeling of Compressed Air Energy Storage

Gu, Yang; McCalley, James; Ni, Ming; Bo, Rui - In: Energies 6 (2013) 4, pp. 2221-2241

Due to the variable nature of wind resources, the increasing penetration level of wind power will have a significant impact on the operation and planning of the electric power system. Energy storage systems are considered an effective way to compensate for the variability of wind generation....

Persistent link: https://www.econbiz.de/10010676140

Potential of Offshore Wind Energy and Extreme Wind Speed Forecasting on the West Coast of Taiwan

Chang, Pei-Chi; Yang, Ray-Yeng; Lai, Chi-Ming - In: Energies 8 (2015) 3, pp. 1685-1700

It is of great importance and urgency for Taiwan to develop offshore wind power. However, relevant data on offshore wind energy resources are limited. This study imported wind speeds measured by a tidal station and a buoy into the software WAsP to estimate the high-altitude wind speeds in the...

Persistent link: https://www.econbiz.de/10011186338