Results 11 to 20 of about 1,034,905 (229)
Secondary Voltage Unbalance Compensation for Three-Phase Four-Wire Islanded Microgrids [PDF]
2014 IEEE 11th International Multi-Conference on Systems, Signals & Devices (SSD14), 2014 This paper proposes a secondary voltage unbalance control approach that compensate voltage unbalances in three-phase four-wire islanded microgrid systems. It is implemented in the secondary control level of the microgrid hierarchical control structure.
Tang, Fen +4 more
semanticscholar +4 more sources
SiC-MOSFET three phase unbalance compensation device with interleaved parallel structure
Energy Reports, 2022 In this paper, a three-phase unbalance compensation device with two-module interleaved parallel structure is proposed, which can reduce the harmonic of output voltage and output ripple current.
Xiao Guo +4 more
doaj +2 more sources
Electric power systems research, 2022 —Due to unevenly distributed energy resources between phases, it is expected that active distribution networks (ADNs) may experience a high degree of three-phase unbalance. Accurate analysis tools play an essential role in addressing the issues caused by
Jiaqi Chen, Line A. Roald
semanticscholar +1 more source
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
doaj +1 more source
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
doaj +1 more source
New Smart Sensor for Voltage Unbalance Measurements in Electrical Power Systems
Sensors, 2022 This paper deals with voltage unbalances and how they can be quantified according to the standards. Firstly, a comparison between the different unbalance voltage factors is conducted in order to remark on their divergences.
Santiago Bogarra +2 more
doaj +1 more source
Using Special Transformer Wiring to Improve the Three-phase Unbalance Rate of Railway System
Journal of Low Frequency Noise, Vibration and Active Control, 2023 Because imbalanced power will cause the loss of the propulsion motor of the railway vehicle, and the increase in temperature will shorten the service life of the electric vehicle.
Chien-Hsu Chen, Sheng-Chieh Huang
doaj +1 more source
Energies, 2023 With a large amount of distributed power and energy storage access, the traditional three-phase unbalanced treatment of a power distribution system is mainly aimed at the three-phase unbalance of a load, which cannot effectively address the three-phase ...
Min Wang +5 more
doaj +1 more source
Energies, 2020 This paper studies the system unbalance caused by rooftop Photovoltaic Generation Systems (PVGSs) in distribution networks and proposes an improved method.
Rong-Ceng Leou +4 more
doaj +1 more source
Applied Sciences, 2023 With the increased grid-connected capacity of a single-phase distributed power supply, three-phase power unbalance is more likely to occur in a power grid.
Zhenao Sun, Dazhong Ma, Qiuye Sun
doaj +1 more source