Results 71 to 80 of about 11,059,844 (256)

Control of a wind farm with an internal direct current collection grid

open access: yes, 2011
For a high-voltage, direct current connected wind farm, an internal direct current (DC) collection grid is a possible further development that can reduce the weight of the transformers significantly, with average losses for the DC system of 3%.
Carlson, Ola   +9 more
core   +1 more source

Lost ground, lost value: Investigating the relationship between soil erosion and agricultural land value

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract This study examines the impact of soil erosion on agricultural land values in the United States (US) Midwest. Based on a novel county‐level panel data set with information on soil erosion levels and agricultural land values covering five census years (1997, 2002, 2007, 2012, and 2017), we separately investigate the direct effect of two types ...
Le Chen   +3 more
wiley   +1 more source

Dispatching of Wind/Battery Energy Storage Hybrid Systems Using Inner Point Method-Based Model Predictive Control

open access: yesEnergies, 2016
The application of large scale energy storage makes wind farms more dispatchable, which lowers operating risks to the grid from interconnected large scale wind farms.
Deyou Yang   +3 more
doaj   +1 more source

How cold is too cold? A theoretical analysis of the optimal trigger for index insurance for frost damage to crops

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Crop insurance is undoubtedly an extremely valuable element in protecting agricultural businesses, but in many cases standard indemnity‐based products have had very low uptake due to high transaction costs elevating premiums to unaffordable levels.
Amogh Prakasha Kumar   +2 more
wiley   +1 more source

Optimization Method of Multi-Mode Model Predictive Control for Wind Farm Reactive Power

open access: yesEnergies
This paper presents a novel approach for optimizing wind farm control through the utilization of a combined model predictive control method. In contrast to conventional methods of controlling active and reactive power in wind farms, the suggested ...
Fei Zhang   +4 more
doaj   +1 more source

Advanced operating control for wind farm clusters

open access: yes, 2010
S.188-192In a German research and development project a new control unit for system operators, the Wind Farm Cluster-Management (WCM) has been developed.
Lange, B.   +8 more
core   +1 more source

Climate change and perennial crop production: Evidence of yield impact and adaptation in California

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Perennial crops are economically important. They contribute to food security, providing essential nutrients that are often lacking in annual crops, and provide additional environmental benefits compared with annual crops. Despite their importance, empirical research on the impacts of climate change and adaptation on perennial crops remains ...
Yuanyuan Wen   +2 more
wiley   +1 more source

Optimization of an active control strategy for wind farm clusters considering their integration performance difference

open access: yesZhejiang dianli
To more reasonably and accurately control the output of new energy in large-scale wind farm clusters in the scenario of multiple nested cross sections, an optimization strategy for active control of wind farm clusters considering differences in their ...
XU Man   +4 more
doaj   +1 more source

Investigations of Attitudes towards Offshore Wind Farm Development in Ireland: Their Implication towards Future Development of the Industry. [PDF]

open access: yes, 2013
This current research investigates what the attitudes of Irish people are towards the development of offshore wind farms in Ireland. Using a qualitative approach, a questionnaire is carefully designed and distributed among a sample population from three
Melia, Aidan
core  

The Herfindahl neutral point: A firm‐level threshold for managing market concentration with evidence from US hog packing

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract This paper derives a firm‐level threshold, the Herfindahl Neutral Point, from the standard concentration index used in merger review. At this threshold, a marginal expansion leaves the index unchanged. Firms below the threshold reduce concentration when they expand; firms above it increase concentration.
Andrew J. Keller, Krishna P. Paudel
wiley   +1 more source

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