Results 31 to 40 of about 1,034,905 (229)
Neutral conductor current in three-phase networks with compact fluorescent lamps [PDF]
, 2013 In this paper, expressions of the neutral conductor current in three-phase networks with compact fluorescent lamps (CFLs) are obtained from a CFL “black-box” model proposed in the literature.
Cunill Solà, Jordi +2 more
core +2 more sources
IEEE Access, 2022 Many unbalanced voltage conditions, which produce different effects on electric equipment, are associated with the same voltage unbalance factor. This fact hinders the precise association between the values of this index and the effects of voltage ...
Marcos D. C. Silva +1 more
doaj +1 more source
The Journal of Engineering, 2023 The phenomenon of imbalance is a variation of voltage and current waveforms from a perfect sinusoidal waveform, which is considered a crucial challenge in power systems.
Ragab Abd Allah Mahmoud
doaj +1 more source
Frequency and fundamental signal measurement algorithms for distributed control and protection applications [PDF]
, 2009 Increasing penetration of distributed generation within electricity networks leads to the requirement for cheap, integrated, protection and control systems.
Burt, G.M. +2 more
core +1 more source
Compensation of Distribution System Voltage using DVR [PDF]
, 2002 A dynamic voltage restorer (DVR) is a power-electronic controller that can protect sensitive loads from disturbances in the supply system. In this paper, it is demonstrated that this device can tightly regulate the voltage at the load terminal against ...
Ghosh, Arindam, Ledwich, Gerard
core +2 more sources
IEEE Transactions on Smart Grid, 2022 In islanded microgrids, distributed generators (DGs) are employed as distributed compensators to improve the power quality on the load side. Due to the access of unbalanced loads, the low-voltage microgrid will naturally exhibit three-phase unbalance ...
Siyi Luo +4 more
semanticscholar +1 more source
IET Generation, Transmission & Distribution, 2020 Three‐phase electric vehicle (EV) battery chargers are expected to not impact the unbalance of distribution networks; moreover, using active power factor correction topologies they are expected to behave like resistive loads not affecting the system ...
Jesus C. Hernández +3 more
doaj +1 more source
Fast detection technique for voltage unbalance in three-phase power system
International Journal of Power Electronics and Drive Systems (IJPEDS), 2021 In this paper, the problem of voltage unbalance in the three-phase power systems is examined. A fast detection technique (FDT) is proposed to detect the voltage unbalance precisely and speedily. The well-known detection methods require more than one cycle time to detect the unbalanced voltages, whereas the proposed technique detects the unbalanced ...
Ibrahim I. Al-Naimi +3 more
openaire +2 more sources
The Journal of Engineering, 2021 A differentiation in three‐phase voltages or currents is termed as unbalance. Unbalance can be caused by unbalanced loads and power system faults. This disturbance results in serious problems in system elements, particularly to synchronous generators ...
Ragab Abd Allah Mahmoud
doaj +1 more source
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
doaj +1 more source