Results 1 to 10 of about 336,016 (296)
Unbalanced Current Identification of Three-Core Power Cables Based on Phase Detection of Magnetic Fields [PDF]
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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Novel approach to determine unbalanced current circuit on Nigerian 330kV transmission grid for reliability and security enhancement [PDF]
Heliyon, 2021 The present Nigerian transmission network is faced with the difficulty of evacuating and dispatching reliable and quality electricity supply and simultaneously maintaining an operational standard of security to prevent any collapses.
Ademola Abdulkareem +3 more
doaj +2 more sources
Effect of Doubly Fed Induction GeneratorTidal Current Turbines on Stability of a Distribution Grid under Unbalanced Voltage Conditions [PDF]
Energies, 2017 This paper analyses the effects of doubly fed induction generator (DFIG) tidal current turbines on a distribution grid under unbalanced voltage conditions of the grid.
Dahai Zhang +5 more
doaj +4 more sources
Effect of Current Distortion and Unbalanced Loads on Semiconductors Reliability [PDF]
IEEE Access, 2021 This article presents a reliability analysis of a 4-wire grid-tied inverter under different loading conditions, considering unbalanced loads and harmonic distortion in the current consumed.
Tomas Lledo-Ponsati +4 more
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Unbalanced Current Sharing Control in Islanded Low Voltage Microgrids [PDF]
Energies, 2018 This paper reports a new control strategy to improve sharing of unbalanced currents in islanded LV microgrids. This technique provides fast and effective sharing of positive-, negative- and zero-sequence currents, and is the first example of zero ...
Foad Najafi +2 more
doaj +5 more sources
Research on Interference Mechanism of 25 Hz Phase Sensitive Track Equipment from Unbalanced Current
Applied Sciences, 2023 In a 25-Hz phase-sensitive track circuit, traction backflow is unevenly distributed in the two rails, resulting in interference caused by the 50 Hz unbalanced current, which leads to misoperation of relays and other equipment in the circuit.
Lei Wang +6 more
doaj +1 more source
VSC control strategy for HVDC compensating harmonic components
Energy Reports, 2023 This paper proposes a voltage source converter (VSC) control strategy for the high voltage direct current (HVDC) transmission systems compensating the harmonic components.
Bo Zhu, Xiang Chen, Xin Luo
doaj +1 more source
IEEE Access, 2021 The unbalanced condition of typical loads in industrial networks could affect the current harmonics across the dc-link in Adjustable Speed Drives (ASDs).
Arash Moradi +3 more
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Energies, 2021 In this study, we have proposed a novel current injection determination method that improves the voltage unbalance based on the unbalanced line impedance in a distribution network with a large-capacity PV system.
Daisuke Iioka +5 more
doaj +1 more source
Energy Reports, 2022 The Vienna rectifier is an excellent Power Factor Correction (PFC) AC–DC converter which has low Total Harmonic Distortion (THD) of input current, resistance to high-voltage, and high efficiency.
Jianguo Lyu +3 more
doaj +1 more source