Results 81 to 90 of about 10,615,182 (297)
American 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
Zhejiang dianliTo 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
Climate change and perennial crop production: Evidence of yield impact and adaptation in California
American 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
Combining wake redirection and derating strategies in a load-constrained wind farm power maximization [PDF]
Wind Energy SciencePower derating and wake redirection are two wind farm control techniques proposed in the last decade as means for increasing the overall wind farm power output.
A. Croce, S. Cacciola, F. Isella
doaj +1 more source
American 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
2.5a_Pedersen: The influence of wind farm control on optimal wind farm layout
, 2019 Design of an optimal wind farm topology is dependent on the chosen wind farm control strategy. The objective of this paper is to investigate the influence of optimal wind farm control on the optimal wind farm layout as seen from a production perspective.
Pedersen, Mads Mølgaard +1 more
openaire +2 more sources
Active Power Control of Waked Wind Farms
IFAC-PapersOnLine, 2017 Active power control can be used to balance the total power generated by wind farms with the power consumed on the electricity grid. With the increasing penetration levels of wind energy, there is an increasing need for this ancillary service. In this paper, we show that the tracking of a certain power reference signal provided by the transmission ...
van Wingerden, J.W. (author) +3 more
openaire +2 more sources
Farm labor scarcity and its uneven impacts on crop producers in the United States
American Journal of Agricultural Economics, EarlyView.Abstract This study is the first to evaluate the impacts of farm labor scarcity on producers in the United States across different crop production systems. Between 2002 and 2017, we disentangle the effects of labor scarcity from the impacts of rising commodity demand, technological change, and supply of other inputs on labor market outcomes.
Srabashi Ray +4 more
wiley +1 more source
Analysis of small signal stability in direct-drive wind farm under wind power generation variations
电力工程技术The small-signal stability problem of large-scale grid-connected wind farms consisting of permanent magnet synchronous generators (PMSGs) under wind power variations is addressed in this paper, with focus placed on the DC-link voltage timescale.
Guofu YUAN, Wenjuan DU, Haifeng WANG
doaj +1 more source
Active Frequency Support Control Strategy for Wind Farm Considering the Energy Discrepancy of Wind Turbines [PDF]
Dianli jianshe[Objective] Wind turbine generators generally operate in maximum power point tracking （MPPT） mode and do not provide inertial response and frequency support to the power grid.
LI Fengneng, YANG Ping, WEI Zhichu, CHEN Wenhao, ZHOU Qianyufan, WAN Siyang
doaj +1 more source