Results 21 to 30 of about 135,349 (273)

Investigation of the rotor speed impact on the efficiency of rotary heat recovery ventilation devices [PDF]

, 2018
Thesis (Master)--Izmir Institute of Technology, Energy Engineering, Izmir ...
Dilşen, Mustafa
openaire   +2 more sources

Rotor Speed Recovery Strategy for Inertial Response Control of Wind Turbine Generators Considering Turbulent Wind

CSEE Journal of Power and Energy Systems
openaire   +2 more sources

Cooperative Synthetic Inertia Control for Wind Farms Considering Frequency Regulation Capability

Frontiers in Energy Research, 2021
To fully utilize the frequency regulation (FR) capability of wind turbines (WTs) and to avoid a secondary frequency drop caused by the rotor speed recovery, this paper firstly proposes an FR capability evaluation method for wind farms based on the ...
Qiaoming Shi, Lei Liu, Yongping Wang, Yu Lu, Qiang Zou, Qingwu Zhang, Hongqing Liu   +6 more
doaj   +1 more source

Numerical Simulation of Compressor Stall Recovery Control

Shanghai Jiaotong Daxue xuebao, 2021
In order to explore the influencing factors of the effectiveness and stability for stall recovery and its flow mechanism when the antisurge valve is opened quickly, the dynamic stall recovery processes are simulated and the recovery processes at ...
GAO Yuan, WU Yadong, OUYANG Hua
doaj   +1 more source

Multi-Timescale Control of Variable-Speed Wind Turbine for Inertia Provision

Applied Sciences, 2022
The increasing deployment of power converters has led to a significant reduction in the power system inertia and consequently resulted in frequency stability issues.
Zixiao Xu, Yang Qi, Weilin Li, Yongheng Yang   +3 more
doaj   +1 more source

Fast Frequency Response of a Doubly-Fed Induction Generator for System Inertia Support

Applied Sciences, 2020
Converter-interfaced doubly-fed induction generators (DFIGs) can provide short-term frequency support (STFS) capability by releasing rotating kinetic energy.
Dejian Yang, Hong-Chao Gao, Lei Zhang, Jingjiao Li, Xinsong Zhang, Liang Hua   +5 more
doaj   +1 more source

Research on primary frequency regulation strategies for ancillary wind power inertia based on the rotor kinetic energy

Frontiers in Energy Research, 2023
The additional frequency control of wind turbines is an effective method to solve the problem of low inertia in power systems with high proportions of new energy.
Li Sun, Peihong Yang, Hui Jiang, Yanfang Xu, Lan Kang, Xiuyan Lu   +5 more
doaj   +1 more source

Analysis of Unbalanced Magnetic Pull of a Solid Rotor Induction Motor in a Waste Heat Recovery Generator

IEEE transactions on energy conversion, 2023
In active magnetic bearing control systems, the performance of the closed-loop control and the application can be impaired by external disturbances. This article analyzes the unbalanced magnetic pull forces produced by the eccentricity of a high-speed ...
R. Jastrzebski, A. Piłat
semanticscholar   +1 more source

Aerodynamic Performance and Wake Characteristics Analysis of Archimedes Spiral Wind Turbine Rotors with Different Blade Angle

Energies, 2022
Continuous improvement of wind turbines represent an effective way of achieving green energy and reducing dependence on fossil fuel. Conventional lift-type horizontal axis wind turbines, which are widely used, are designed to run under high wind speed to
Ke Song, Huiting Huan, Yuchi Kang
doaj   +1 more source

Control of rotorcraft retreating blade stall using air-jet vortex generators [PDF]

, 2006
A series of low-speed wind tunnel tests were carried out on an oscillating airfoil fitted with two rows of air-jet vortex generators (AJVGs). The airfoil used had an RAE 9645 section and the two spanwise arrays of AJVGs were located at x/c=0.12 and 0.62.
Kokkalis, A, Khodagolian, V., Peake, D. J., Khodagolian, V, Galbraith, RAM, Roderick A. McD. Galbraith, Coton, FN, Vahik Khodagolian, Kokkalis, A., Peake, DJ, Singh, C., David J. Peake, Galbraith, R. A. M, Singh, C, Chrisminder Singh, Frank N. Coton, Coton, F.N., Anastasios Kokkalis   +17 more
core   +1 more source