Results 31 to 40 of about 111,171 (300)
A New Transient Frequency Acceptability Margin Based on the Frequency Trajectory
Energies, 2018 When the electric power system is disturbed, the transient frequency deviation may be large and harmful to its stable operation, especially in some small power systems.
Ancheng Xue +5 more
doaj +1 more source
NREL (National Renewable Energy Laboratory) Fact Sheets
, 2013 Biogas has received increased attention as an alternative energy source in the United States. The factsheet provides information about the biogas (methane) potential from various sources in the country (by county and state) and estimates the power ...
core +1 more source
Advanced Engineering Materials, EarlyView.A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares +3 more
wiley +1 more source
International Journal of Electrical Power & Energy SystemsIn view of the difficulty in evaluating the oscillation stability of direct-drive wind farm integrated power system during fault recovery, this paper proposed an oscillation stability analysis method based on dynamic energy.
Jing Ma +5 more
doaj +1 more source
Constrained operation zone of a VSG considering the DC-side power margin
The Journal of Engineering, 2019 Recently, the virtual synchronous generator (VSG) has drawn considerable attention for its function of simulating the electromechanical transient of SG to make converters equip with the characters of inertia, damping, voltage regulating, and frequency ...
Chang Yuan +3 more
doaj +1 more source
Feasibility of Nitrogen as a Carrier Gas for Inconel Cold Spray in Hydropower Application
Advanced Engineering Materials, EarlyView.N2, despite being nearly two orders of magnitude cheaper than He, is a feasible carrier gas for cold spray Inconel coatings in hydropower repair applications when higher gas temperature and pressure are used. Reducing powder size significantly improved cavitation resistance, while the addition of fine chromium carbide particles further enhanced erosion
Tianhao Wang +4 more
wiley +1 more source
Energies, 2018 An accurate calculation of short-circuit current (SCC) is very important for relay protection setting and optimization design of electrical equipment. The short-circuit current for a doubly-fed induction generator wind turbine (DFIG-WT) under excitation ...
Jing Li, Tao Zheng, Zengping Wang
doaj +1 more source
Integrated Renewable Hydrogen Utility System [PDF]
, 2003 Products based on Proton Exchange Membrane (PEM) technology offer a unique solution to today's energy conversion storage needs. PEM products have undergone continual development since the late 1950's for many diverse applications.
Systems, Proton Energy
core +1 more source
Electrified Damage in Motion Systems
Advanced Engineering Materials, EarlyView.The electrified damage in motion systems is a fundamental framework presenting the degradation pathway arising from the coupling of electrical energy transport with mechanical contact and interfacial chemistry. The framework positions electrified damage as a distinct degradation regime with unique characteristic surface morphologies and failures of ...
M. Humaun Kabir +2 more
wiley +1 more source
International Journal of Electrical Power & Energy SystemsConventional protection schemes for wind farm-flexible flexible direct current (DC) system transmission lines are susceptible to malfunctions in external fault scenarios and exhibit limited immunity to fault resistance in internal fault scenarios. In the
Jing Ma +5 more
doaj +1 more source