Results 101 to 110 of about 136,749 (361)

Intelligent fuzzy logic controller for improved power extraction of micro wind turbines [PDF]

, 2018
Wind turbines are one of the fastest growing forms of renewable energy. The amount of power a wind turbine extracts from the incoming wind is dependent on the rotational speed and for every wind speed there is an optimal rotational speed that will ...
Botha, Stefan, Dobzhanskyi, Oleksandr, Gouws, Rupert, Zabihi, Nima   +3 more
core   +1 more source

Intelligent Operator‐Independent Flexibility in Robotic Non‐Destructive Evaluation

Advanced Intelligent Systems, EarlyView.
Non‐destructive evaluation of high‐value components remains a manufacturing bottleneck due to rigid robotic calibration and fixturing. This study presents a flexible, adaptable system integrating 3D vision and force‐position control with a collaborative KUKA LBR robot. The geometry‐agnostic system enables pose‐independent ultrasonic inspection, detects
Amine Hifi, Randika K. W. Vithanage, Shaun McKnight, Vedran Tunukovic, Ewan Nicolson, Rylan Gomes, Alastair Poole, Ehsan Mohseni, Stephen Gareth Pierce, Charles MacLoed, Tom O’Hare, Gavin Munro   +11 more
wiley   +1 more source

Transient behavior of wind towers grounding systems under lightning strikes [PDF]

, 2015
Wind turbines, because of their height and localization, are frequently subject to direct lightning strikes. Thus, the investigation on the performance of their grounding system is of paramount interest for the prediction of the potential threats either ...
ARANEO, Rodolfo, CELOZZI, Salvatore
core   +1 more source

Uncovering renewable energy policy impact channels on land values, the local farm structure, and farmland heterogeneity

American Journal of Agricultural Economics, EarlyView.
Abstract Germany's Renewable Energy Sources Act (REA), enacted in 2000 and subsequently amended, subsidized national renewable energy production with fixed feed‐in tariffs for renewable energy sources (RE) from wind, solar, and biogas. Empirical studies suggest that the policy was creating windfall effects for landowners and attribute farmland use ...
Lars Isenhardt, Stefan Seifert, Saskia Wolff, Tobia Lakes, Marten Graubner, Axel Werwatz, Silke Hüttel   +6 more
wiley   +1 more source

Development of Intelligent and Information Wind Turbine Control System

Kongzhi Yu Xinxi Jishu, 2017
In order to follow the development trend of informatization and intelligentization in wind power industry, it presented a developing idea and realization method of new wind turbine control system, including its function in wind power information flow ...
GUO Rui, YE Wei, ZHAI Dayong, DING Guilin, ZHANG Yuanlin   +4 more
doaj  

Wind turbine adaptive controller modeling

2012 IEEE Power Electronics and Machines in Wind Applications, 2012
In the time of current trend of increasing energy consumption, the wind-power engineering may compensate considerable part of required electric energy. Rapid windpower engineering development is considered to be one of the important sources of human need satisfaction.
Baygildina Elvira, Hynynen Katja, Pyrhönen Olli   +2 more
openaire   +1 more source

Effect of Temperature and Atmosphere on Agglomeration of Bed Particles in a Bubbling Fluidised Bed Burning Na‐Enriched Coal

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Agglomeration of bed materials during circulating fluidised bed (CFB) combustion or gasification of high‐alkali fuel is a practical challenge in industrial practice. This work investigates experimentally the effect of temperatures (700°C–900°C) and atmosphere (air equivalence ratios 1.61–0.53) on agglomeration in a lab‐scale bubbling fluidised
Zipeng Guo, Jianbo Li, Xiaofei Long, Quanhai Wang, Xiaofeng Lu   +4 more
wiley   +1 more source

Artificial Neural Network Based Reinforcement Learning for Wind Turbine Yaw Control

Energies, 2019
This paper introduces a novel data driven yaw control algorithm synthesis method based on Reinforcement Learning (RL) for a variable pitch variable speed wind turbine.
Aitor Saenz-Aguirre, Ekaitz Zulueta, Unai Fernandez-Gamiz, Javier Lozano, Jose Manuel Lopez-Guede   +4 more
doaj   +1 more source

Fatigue Load Modeling and Control for Wind Turbines based on Hysteresis Operators [PDF]

, 2015
The focus of this work is on fatigue load modeling and controller design for the wind turbine level. The main purpose is to include a model of the damage effects caused by the fatigue of the wind turbine components in the controller design process.
Barradas Berglind, Jose de Jesus, Soltani, Mohsen, Wisniewski, Rafal   +2 more
core   +2 more sources

Evolutionary radiation of large‐bodied gorgonopsians from the lower Abrahamskraal formation of South Africa

The Anatomical Record, EarlyView.
Abstract The middle Permian represents a critical interval in therapsid evolution, when gorgonopsians emerged as some of the first specialized apex predators within terrestrial ecosystems. Despite their significance, the early diversification of Gorgonopsia in Gondwana remains poorly understood due to scarcity and fragmentary material.
Zanildo Macungo, Ricardo Araújo, Bruce S. Rubidge, Michael O. Day, Kathleen N. Dollman, Julien Benoit   +5 more
wiley   +1 more source