28   Artículos

 
en línea
Farid Saemi and Moble Benedict    
Minimizing electric losses is critical to the success of battery-powered small unmanned aerial systems (SUASs) that weigh less than 25 kgf (55 lb). Losses increase energy and battery weight requirements which hinder the vehicle?s range and endurance. How... ver más
Revista: Aerospace    Formato: Electrónico

 
en línea
Shukuan Zhang, Yunxiang Nan, Yusen Zhang, Chuan Xiang and Mai The Vu    
The propulsion system for underwater vehicles, driven by a counter-rotating permanent magnet synchronous motor (CRPMSM), can enhance the operational stability and efficiency of the vehicle. Due to the influence of complex underwater flows, the load imbal... ver más
Revista: Journal of Marine Science and Engineering    Formato: Electrónico

 
en línea
Xuan Thanh Pham, Xuan Thuc Kieu and Manh Kha Hoang    
This paper presents a capacitively coupled chopper instrumentation amplifier (CCIA) with ultra-low power consumption and programmable bandwidth for biomedical applications. To achieve a flexible bandwidth from 0.2 to 10 kHz without additional power consu... ver más
Revista: Journal of Low Power Electronics and Applications    Formato: Electrónico

 
en línea
Vinit Kumar and KangHyun Yi    
In the present scenario of the fossil fuel crisis, a shift from conventional transportation to electric vehicles (EVs) is the goal, and it is necessary to make it economically feasible. Developing an efficient charger with mid-range power level may succe... ver más
Revista: Applied Sciences    Formato: Electrónico

 
en línea
Isabel Santiago, Jorge Luis Esquivel-Martin, David Trillo-Montero, Rafael Jesús Real-Calvo and Víctor Pallarés-López    
In this work, the automatic classification of daily irradiance profiles registered in a photovoltaic installation located in the south of Spain was carried out for a period of nine years, with a sampling frequency of 5 min, and the subsequent analysis of... ver más
Revista: Applied Sciences    Formato: Electrónico

 
en línea
Chien-Hsuan Chang and Yi-Fan Chen    
To improve the efficiency of photovoltaic (PV) grid-tied systems and simplify the circuit structure, many pseudo DC-link inverters have been proposed by combining a sinusoidal pulse-width modulation (SPWM) controlled buck-boost converter and a low-freque... ver más
Revista: Applied Sciences    Formato: Electrónico

 
en línea
Leonardo Saccenti, Valentina Bianchi and Ilaria De Munari    
In a multiple parallel-connected inverters system, limiting the circulating current phenomenon is mandatory since it may influence efficiency and reliability. In this paper, a new control method aimed at this purpose and conceived to be implemented on a ... ver más
Revista: Applied System Innovation    Formato: Electrónico

 
en línea
Oleksandr Plakhtii,Volodymyr Nerubatskyi,Nadiia Karpenko,Olha Ananieva,Hryhorii Khoruzhevskyi,Vitaliy Kavun     Pág. 19 - 27
Multi-level autonomous voltage converters are increasingly used in industry, specifically: in wind and solar energy generation, high-voltage substations, in industrial and traction electric drives. In comparison with two-level inverters, multilevel inver... ver más
Revista: Eastern-European Journal of Enterprise Technologies    Formato: Electrónico

 
en línea
Anatolii Bondarchuk     Pág. 69 - 77
This paper reports a study into efficiency of the application of hybrid solar collectors, which can simultaneously generate both electricity and thermal energy to supply power to multi-storey buildings. The novelty of the work is that efficiency was pred... ver más
Revista: Eastern-European Journal of Enterprise Technologies    Formato: Electrónico

 
en línea
Udochukwu B. Akuru, Maarten J. Kamper    
The China-based monopoly of high-energy permanent magnet materials used in modern wind generators impact the economic viability and local content value of most wind turbines installed in South Africa, especially large installations. It is possible to des... ver más
Revista: Journal of Energy in Southern Africa    Formato: Electrónico

« Anterior     Página: 1 de 2     Siguiente »