Published in Measurement Science and Technology
This paper proposes a novel weighted SE MSH CNNs approach to make full use of time-series data and solve the problem of low WT fault diagnosis accuracy. Firstly, the operating data of WTs are collected through the SCADA system and expanded by the SWM. Then, the SE network is constructed to adaptively determine the weights of each parameter to focus...
Published in Frontiers in Energy Research
The world’s attention is increasingly focused on the growing need to diversify energy sources. Saudi Arabia is under natural pressure to seize the opportunity in the renewable energy sector. Since renewable natural resources such as wind and solar energy are less expensive and environmentally friendly, most countries like to move away from the use ...
Published in Measurement Science and Technology
Blade icing is one of the common issues of large-scale wind turbines located in cold regions, which will affect the safety and efficiency of the whole turbine system. Currently, data-driven fault detection has gained increasing interest due to the availability of a large volume of supervisory control and data acquisition (SCADA) data. However, SCAD...
Published in Frontiers in Energy Research
Introduction: High-fidelity simulation of the radar echo from the wind turbine (WT) for accurate acquisition of Doppler features, is the key issue in addressing radiation interference from the wind farm on the nearby radar station. In view of the limitation of the conventional scattering center-based equivalent model to reflect the complex surface ...
Published in Frontiers in Energy Research
The accurate condition assessment of wind turbines greatly influences the refined asset management and maintenance scheduling of wind farms. To address the challenges of existing assessment methods in selecting the reliability value and determining wind turbine status levels of being in transition, this study proposes a wind turbine condition evalu...
Published in Frontiers in Energy Research
Published in Frontiers in Energy Research
Recently, incorporating renewable energy resources (RERs) like wind turbines (WTs) in a distribution network is rapidly increased to meet the load growth. However, distribution networks have been facing many challenges to withstand the intermittent output power of RERs. Battery energy storage (BES) is used with RERs to smoothly inject the output po...
Published in Plasma Science and Technology
To alleviate the performance deterioration caused by dynamic stall of a wind turbine airfoil, the flow control by a microsecond-pulsed dielectric barrier discharge (MP-DBD) actuator on the dynamic stall of a periodically pitching NACA0012 airfoil was investigated experimentally. Unsteady pressure measurements with high temporal accuracy were employ...
Published in Frontiers in Earth Science
The risk of lightning exposure increases as wind turbine size increases, and lightning accidents have grown up to be a severe threat to wind turbines. The present paper focuses on the influence of the changes in atmospheric conditions around the rotating blade for the upward leader initiation. A 2D computational fluid dynamics model was established...
Published in Frontiers in Energy Research
This paper proposes a dynamic synthetic inertia control method, considering the fatigue loads of the wind turbine. The control objectives include reducing the rate of change of frequency and frequency nadir of the power system and the fatigue load of the shaft and tower of the wind turbine. A frequency regulation model of the power system containin...
