Results 51 to 60 of about 180,287 (259)

Data Fusion Based on an Iterative Learning Algorithm for Fault Detection in Wind Turbine Pitch Control Systems

open access: yesSensors, 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
doaj   +1 more source

Technological Advances in Hydraulic Drive Trains for Wind Turbines

open access: yesEnergy Procedia, 2012
AbstractThe reliability of frequency converters is a major concern for wind turbines. ChapDrive AS has built and tested a hydraulic drive train for variable speed wind turbines which includes a synchronous generator that is connected to the grid without the use of a frequency converter. The hydraulic drive train consists of a hydraulic pump, a variable
K.E.Thomsen,   +3 more
openaire   +1 more source

Study on Dynamic Response of Offshore Wind Turbine Structure Under Typhoon

open access: yesPolish Maritime Research, 2022
Floating offshore wind turbines are easily affected by typhoons in the deep sea, which may cause serious damage to their structure. Therefore, it is necessary to study further the dynamic response of wind turbine structures under typhoons.
Li Junlai   +8 more
doaj   +1 more source

Research on Grid-Connected Speed Control of Hydraulic Wind Turbine Based on Enhanced Chaotic Particle Swarm Optimization Fuzzy PID

open access: yesAlgorithms
An enhanced chaotic particle swarm optimization fuzzy PID is introduced to address the hydraulic wind turbine grid-connected speed control conditions. In the enhanced algorithm, a Circle chaotic mapping is combined with particle swarm optimization (PSO ...
Yujie Wang   +9 more
semanticscholar   +1 more source

A Resource-Efficient Design for a Flexible Hydraulic-Pneumatic Flywheel in Wind Turbine Blades

open access: yesJournal of Physics: Conference Series, 2022
The utilization of renewable energy resources significantly increases in order to reduce the impact of climate change. Wind turbines are one of the most important renewable energy sources and have an important role to play in power generation.
L. Alhrshy, C. Jauch
semanticscholar   +1 more source

Optimal Control of Hydrostatic Drive Wind Turbines for Improved Power Output in Low Wind-Speed Regions

open access: yesEnergies, 2021
World wind energy output is steadily increasing in both production scale and capacity of harvesting wind. Hydrostatic transmission systems (HTSs) have been used mostly in offshore wind turbine applications.
Ammar E. Ali, Majid Deldar, Sohel Anwar
doaj   +1 more source

Review of fluid and control technology of hydraulic wind turbines [PDF]

open access: yesFrontiers of Mechanical Engineering, 2017
This study examines the development of the fluid and control technology of hydraulic wind turbines. The current state of hydraulic wind turbines as a new technology is described, and its basic fluid model and typical control method are expounded by comparing various study results.
Maolin Cai   +3 more
openaire   +1 more source

Вдосконалення робочого процесу гідротурбін та систем їх регулювання [PDF]

open access: yes, 2019
The paper provides the detail analysis of the causes of various types of the vortex motion of the turbulent flow in the inlet parts of the turbine and in the inter-blade channels of the runner.
Gasiyk, Alexander   +3 more
core   +1 more source

Extremum Seeking Control for optimization of a feed-forward Pelton turbine speed controller in a fixed-displacement hydraulic wind turbine concept

open access: yesJournal of Physics: Conference Series, 2019
With the sustained drive towards higher power ratings for offshore wind turbines, the size of the turbine rotor and drivetrain components scale accordingly.
S. Mulders   +2 more
semanticscholar   +1 more source

Maximum Power Point Tracking Control of Offshore Hydraulic Wind Turbine Based on Radial Basis Function Neural Network

open access: yesEnergies
A maximum power point tracking control strategy for an affine nonlinear constant displacement pump-variable hydraulic motor actuation system with parameter uncertainty, used within an offshore hydraulic wind turbine, is studied in this paper.
Qinwei Wang   +7 more
semanticscholar   +1 more source

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