Results 11 to 20 of about 5,441 (256)
Three-Phase Unbalance Analysis Method Based on Three-Phase Motor Current Instantaneous Information
Applied Sciences, 2023 Motor current signal analysis is a common method that can be applied to the monitoring and diagnosis of electromechanical equipment. Three-phase unbalance will increase the line power loss and affect the safe operation of power-using equipment.
Xun Zhang +5 more
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IEEE Access, 2020 Three-phase unbalance issue can cause adverse impacts on the power quality of the solid-state transformer (SST) based AC/DC hybrid microgrid. In this paper, an unbalanced power control strategy for cascaded dual active bridge (DAB) converter is proposed.
Yuyang Li +4 more
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Control strategy for microgrid under three-phase unbalance condition [PDF]
Journal of Modern Power Systems and Clean Energy, 2016 Microgrid (MG) is generally developed at utility terminal which contains lots of unbalanced loads and distributed generations (DGs). The interaction between MG and the unbalance loads or DGs will degrades the control performance of interfaced inverter in
Hongtao Shi +3 more
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Energies, 2019 In the low-voltage (LV) distribution network, a three-phase unbalance problem often exists. It does not only increase line loss but also threaten the safety of the distribution network. Therefore, the author designs a residential load transfer device for
Guanghai Bao, Sikai Ke
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Multi-Physics Numerical Research in Oil-Immersed Three-Phase Transformer Under Load Unbalance
EnergiesTransformers are susceptible to the influences of complex power grid systems, which may induce three-phase unbalance in transformers, thereby threatening their safety and stable operation.
Guanxun Diao +4 more
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Energies, 2022 The aim of this study is to improve the three-phase unbalanced voltage at the secondary side of a distribution transformer. The proposed method involves compensation sources injecting three different single-phase currents into the connected point of a ...
Chien-Kuo Chang +2 more
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Research on Reconfiguration of Distribution Network considering Three‐Phase Unbalance
Wireless Communications and Mobile Computing, 2022 In the distribution network, the addition of distributed power sources can improve the voltage part of the distribution system, provide uninterrupted power supply, and reduce network losses. The location of the power supply and its output will also directly affect the system voltage and power loss.
Xuejie Wang +7 more
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Effect of Voltage Unbalances on the Performance of a Three-phase Transformer
IOP Conference Series: Earth and Environmental Science, 2022 Abstract Mitigation and adaptation to climate change have been major driving forces in modernizing electric power infrastructure. Low power quality has a significant impact on electrical equipment efficiency. Voltage unbalances one of the issues with low power quality. This study used a simulation method for a power supply with a voltage
Ngo Xuan Cuong, Le Anh Tuan, Y Do Nhu
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Sensors, 2023 Identifying unbalanced phase currents is crucial for control and fault alarm rates in power grids, especially in urban distribution networks. The zero-sequence current transformer, specifically designed for measuring unbalanced phase currents, offers ...
Shangqing Liang +5 more
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Comprehensive review and a novel technique on voltage unbalance compensation
IET Smart Grid, 2023 Voltage unbalance has gained more attention due to a rapid increase in single‐phase distributed energy resources (DERs) penetration compound with existing unbalance characteristics of low voltage distribution network.
Nattanapong Kongtrakul +2 more
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