Results 221 to 230 of about 180,287 (259)

Elman Neural Network with Customized Particle Swarm Optimization for Hydraulic Pitch Control Strategy of Offshore Wind Turbine

Processes
Offshore wind turbines have garnered significant attention recently due to their substantial wind energy harvesting capabilities. Pitch control plays a crucial role in maintaining the rated generator speed, particularly in offshore environments ...
V. L. Narayanan, Jyotindra Narayan, DHEERAJ KUMAR DHAKED, A. Telmoudi   +3 more
semanticscholar   +1 more source

Short-Term Energy Storage System for Hydraulic Hybrid Wind Turbine Transmission

BATH/ASME 2020 Symposium on Fluid Power and Motion Control, 2020
Abstract A Hydrostatic Transmission (HST) offers a variable ratio transmission for wind turbines that has a higher power to weight ratio than traditional gearboxes, and requires less maintenance. In a conventional turbine, when the wind speed increases above the rated speed, the blade pitch is controlled to dissipate excess energy and ...
Eric Mohr, Biswaranjan Mohanty, Kim A. Stelson   +2 more
openaire   +1 more source

Study of the Hydraulic Impact of Hydraulic Yaw Brake System of the Wind Turbine

Advanced Science and Technology Letters, 2016
When the wind turbine hydraulic yaw system brake and pressure relief, hydraulic oil pressure in the hydraulic system is rapidly reduced, and its direction of flow has also undergone dramatic change. This paper has analyzed the reasons resulting hydraulic impact.
Derong Cheng, Xuzhi Lu, Shiping Deng
openaire   +1 more source

Study on Megawatt-Class Wind Turbine Hydraulic System and its Materials

Advanced Materials Research, 2012
Compared with electric pitch, hydraulic pitch has the merits— fast response, stable pitch, safe , reliable, etc., and is generally used in the megawatt-class wind turbine. The problems faced by the localization process of the hydraulic system, considering most of our wind farms of the unique climatic conditions and use characteristics, the localization
Hong Mei Sun, Ming Gao
openaire   +1 more source

Hydraulic Yaw System for Wind Turbines with New Compact Hydraulic Motor Principle

2011
This paper presents a new hydraulic yaw system for wind turbines. The basic component is a new type of hydraulic motor characterized by an extraordinary high specific displacement yielding high output torque in a compact form.The focus in the paper is the volumetric efficiency of themotor, which is based on leakage flow.
Sørensen, Rasmus Mørk, Hansen, Michael Rygaard, Mouritsen, Ole Ø.   +2 more
openaire   +1 more source

Working Principle and Experimental Design of Hydraulic Wind Heating

International Journal of Electric Power and Energy Studies
The wind energy heating system studied in this article mainly consists of three parts: vertical axis wind turbines, heaters, and heat exchange devices. A liquid stirring heating experimental platform was built based on the heating principle.
Li Wan, Chengpeng Liu, Sangyonglamu, Wei Wang   +3 more
semanticscholar   +1 more source

State of the art-hydraulic yaw systems for wind turbines

2011
This paper addresses the yawing systems of Horizontal Axis Wind Turbines (HAWT’s). HAWT’s represents close to all of the commercial large wind turbines sold today and must be considered state-of-the art within wind turbine technology. Two choices exists when considering components for the active yaw system of a HAWT, electro-mechanical or hydraulic ...
Stubkier, Søren, Pedersen, Henrik C., Andersen, Torben Ole, Markussen, Kristian   +3 more
openaire   +1 more source

Rechargeable Batteries for Grid Scale Energy Storage

Chemical Reviews, 2022
Yang Jin, , Wei Chen
exaly  

Expert elicitation survey predicts 37% to 49% declines in wind energy costs by 2050

Nature Energy, 2021
Ryan Wiser, Joseph Rand, Joachim Seel
exaly  

National growth dynamics of wind and solar power compared to the growth required for global climate targets

Nature Energy, 2021
Aleh Cherp, Vadim Vinichenko, Jale Tosun
exaly