Results 21 to 30 of about 877 (136)
Energy Reports, 2022 The objective of this research was to investigate utilizing small to medium-scale wind energy in domestic heating without considerable losses by direct conversion of the wind energy to thermal energy through a hydraulic medium.
Kaushikk Ravender Iyer +3 more
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A CFD analysis of the performance characteristics of different Darrieus turbine runners [PDF]
E3S Web of Conferences, 2020 This paper presents the capabilities of analyzing different Darrieus wind turbine runners with the computer program Ansys Fluent. A K-omega turbulence model was used in the case of a two-dimensional flow with a suitable computational grid around the ...
Iliev Rossen
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Grid Services and Stress Reduction with a Flywheel in the Rotor of a Wind Turbine
Energies, 2021 Wind power penetration increases in most grids and the sizes of wind turbines increase. This leads to increasingly tough requirements, which are imposed on wind turbines, both from the grid as well as from economics. Some of these partially contradictory
Clemens Jauch
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Archimedean screw as fish-friendly turbines for harnessing hydropower potential [PDF]
E3S Web of Conferences, 2021 Hydraulic energy is one of the most important sources of renewable energy today. It is also a complementary source to other renewable energy sources, being the only one that offers an important nonpolluting storage capacity (through pump storage ...
Purece Cristian, Corlan Lilica
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Wind Energy, 2020 This paper deals with numerical modeling of the hydraulic blade pitch actuator and its effect on the dynamic responses of a floating spar‐type wind turbine under valve fault conditions.
Seongpil Cho +4 more
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Applied Sciences, 2018 Wind turbine generators are eco-friendly generators that produce electric energy using wind energy. In this study, wind turbine generator efficiency is examined using a powertrain combination and annual power generation prediction, by employing an ...
Dongmyung Kim +2 more
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Experiments and Simulation on a Late-Model Wind-Motor Hybrid Pumping Unit
Energies, 2020 Many oil fields are full of wind energy. At present, wind power generation technology has catered to oil fields. A larger wind turbine is used to supply power to several pumping units.
Chunyou Zhang, Liang Wang, Hong Li
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A Sensor Data Processing Algorithm for Wind Turbine Hydraulic Pitch System Diagnosis
Energies, 2021 Modern wind turbines depend on their blade pitch systems for start-ups, shutdowns, and power control. Pitch system failures have, therefore, a considerable impact on their operation and integrity.
Iker Elorza +5 more
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Controls of Hydraulic Wind Turbine
MATEC Web of Conferences, 2016 In this paper a hydraulic wind turbine generator system was proposed based on analysis the current wind turbines technologies. The construction and principles were introduced. The mathematical model was verified using MATLAB and AMsim.
Zhang Yin +3 more
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Sensors, 2021 In this article, we propose a recent iterative learning algorithm for sensor data fusion to detect pitch actuator failures in wind turbines. The development of this proposed approach is based on iterative learning control and Lyapunov’s theories ...
Leonardo Acho, Gisela Pujol-Vázquez
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