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Isaac R. Vincent, Erin N. Rosskopf, Jeffrey K. Brecht, Nicholas S. Dufault, Germán Sandoya-Miranda and Xin Zhao
The use of high tunnels, which allows growers to extend their season and improve yields, is increasing in the Southeastern U.S., yet growers face challenges related to weed and disease management, particularly in organic systems. On-station experiments w...
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Cezary Kownacki, Leszek Ambroziak, Maciej Ciezkowski, Adam Wolniakowski, Slawomir Romaniuk, Zbigniew Kulesza, Arkadiusz Bozko and Daniel Oldziej
Various unmanned aerial vechicle (UAV) applications, especially those based on reconnaissance and observation missions, often require an unlimited time of flight. This is possible only when a UAV is continuously supplied with power from a ground-based po...
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Van Chien Pham, Hanseok Kim, Jae-Hyuk Choi, Antony J. Nyongesa, Jongsu Kim, Hyeonmin Jeon and Won-Ju Lee
Recent developments in power electronics, energy storage systems, and renewable energy; increased market demands for more efficient and cleaner electric power to meet stricter environmental regulations; and development in gigawatt (GW)-class DC (direct c...
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Simón Sepúlveda-García, Oscar Danilo Montoya and Alejandro Garcés
This paper addresses the problem of the power flow analysis of bipolar direct current (DC) networks considering unbalanced loads and the effect of a neutral wire, which may be solidly grounded or non-grounded. The power flow problem is formulated using t...
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Quang Tan Nguyen, Cong Phat Vo, Thanh Ha Nguyen and Kyoung Kwan Ahn
This study aimed to develop a simple but effective mechanical-to-electrical energy conversion for harvesting hydrokinetic energy based on triboelectric nanogenerator (TENG) technology. Here, a direct-current fluid-flow-based TENG is reported as a potenti...
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Dawid Tatarynow, Rafal Longwic, Przemyslaw Sander, Lukasz Zielinski, Michal Trojgo, Wincenty Lotko and Pawel Lonkwic
This article discusses current testing methods for motor vehicle engines. Traction engines have so far been tested, for example, according to WLTP (Worldwide Harmonized Light Vehicle Test Procedure) driving tests, but due to the ?VW?gate? incident, these...
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Mohamed Abbas, Mohammed A. Alshehri and Abdulwasa Bakr Barnawi
Active power losses have the potential to affect the distribution of power flows along transmission lines as well as the mix of energy used throughout power networks. Grey wolf optimization algorithms (GWOs) are used in electrical power systems to reduce...
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Diego Rodriguez, Diego Gomez, David Alvarez and Sergio Rivera
The power system expansion and the integration of technologies, such as renewable generation, distributed generation, high voltage direct current, and energy storage, have made power system simulation challenging in multiple applications. The current com...
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Manuela Sechilariu
Smart grid implementation is facilitated by multi-source energy systems development, i.e., microgrids, which are considered the key smart grid building blocks. Whether they are alternative current (AC) or direct current (DC), high voltage or low voltage,...
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Xiaodong Li and Zheng Xu
The large number of switching elements in modular multilevel converters (MMCs) contribute a tremendous computational burden for electromagnetic transient (EMT) simulation programs. Detailed equivalent models (DEMs) and average value model (AVMs) are curr...
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