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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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