Results 1 to 10 of about 6,551,596 (304)

Design procedure for a wind-wheel with self-adjusting blade mechanism

open access: yesTrudy Odesskogo Politehničeskogo Universiteta, 2014
Developed is a wind-wheel design equipped with the self-adjusting blade. The blade is positioned eccentrically to the balance wheel and can freely rotate around its axis. Elaborated is the method of calculating the energy characteristics for a wind-wheel
Gennady A. Oborsky   +2 more
doaj   +7 more sources

Magnitude-phase equivalent circuit and steady-state power-angle characteristic analysis of DFIG

open access: yesInternational Journal of Electrical Power & Energy Systems
Circuit model representing generator characteristics is essential in stability analysis and control system design of doubly-fed induction generator (DFIG).
Ruibo Li   +4 more
doaj   +3 more sources

Characteristic example of insulation coordination in power converters [PDF]

open access: yesZbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2021
Power electronics devices and modules that are most often used in power supply systems when compared to the passive components usually exhibit a very poor ability to withstand surge voltages.
Despotović Željko V.
doaj   +1 more source

Metaphoric Power as a Culturally Determined Characteristic of Discourse [PDF]

open access: yesАктуальные проблемы филологии и педагогической лингвистики, 2021
In the process of intercultural communication, it is important not only to identify the features of the communicative behavior of representatives of a certain ethnic group, but also to comprehend their nature.
Tatiana L. Guruleva, Oleg I. Kalinin
doaj   +1 more source

Blades Interaction and Non-Stationarity of Flow in Vertical-Axial Wind Turbines

open access: yesManagement Systems in Production Engineering, 2021
Until recently, horizontal-axial wind turbines with blades having a wing profile occupied a predominant position in the world wind energy market. But currently, vertical-axial wind units are of increasing interest and this is understandable from the ...
Rozhkova Ludmila   +3 more
doaj   +1 more source

Facile Electrochemical Synthesis of Bifunctional Needle-like Co-P Nanoarray for Efficient Overall Water Splitting

open access: yesMolecules, 2023
The development of low-cost and high-performance bifunctional electrocatalysts for overall water splitting is still challenging. Herein, we employed a facile electrodeposition method to prepare bifunctional cobalt phosphide for overall water splitting ...
Xiong He   +8 more
doaj   +1 more source

Coupling characteristic analysis of power system frequency dynamic and power angle oscillation

open access: yes电力工程技术, 2023
For the analysis of the coupling characteristics of the power system frequency dynamic and power angle oscillation, the mechanism of the two-machine system under disturbances is derived in this paper, and the mechanism of the multi-machine system is ...
MA Ruicong   +5 more
doaj   +1 more source

An External Ocean Thermal Energy Power Generation Modular Device for Powering Smart Float

open access: yesEnergies, 2022
Smart Float is a new multi-modal underwater vehicle, a tool for ocean observation and detection, whose performance is limited by its underwater voyage distance and endurance like most underwater vehicles.
Hongwei Zhang, Xinghai Ma, Yanan Yang
doaj   +1 more source

Source-grid-load-storage interactive power quality characteristic of active distribution network

open access: yesFrontiers in Energy Research, 2022
Source-grid-load-storage has represented an interactive characteristic in the active distribution network (ADN). Moreover, power electronic devices have been widely used for source-grid-load-storage with the rapid development of power electronics ...
Yahui Li, Jie Lou, Kaiqi Sun, Ke-Jun Li
doaj   +1 more source

Transient characteristic analysis for large-scale power system with MMC-MTDC

open access: yesEnergy Reports, 2022
Modular multi-level converter (MMC)-based multi-terminal dc (MTDC) grid (abbreviated as MMC-MTDC) is promising in the integration and transmission of bulk renewable energy.
Kun Chen   +8 more
doaj   +1 more source

Home - About - Disclaimer - Privacy