Results 1 to 10 of about 10,677,552 (246)
Micro-Grid Inrush Current Stability Analysis
2021 IEEE International Joint EMC/SI/PI and EMC Europe Symposium, 2021 Transient currents can severely impact the operation of weak or islanded grids. Inrush current electromagnetic compatibility challenges, due to their unpredictable and intermittent nature, are very difficult to identify. Using multi-point synchronised measurements, analysis is performed on an inverter.
Matthee, Alexander +2 more
openaire +3 more sources
Energies, 2019 In recent years, the zero-mode inrush current of high-impedance transformer with built-in high-voltage winding (T-Hin), which has large amplitude and decays slowly, causes the misoperation of zero-sequence overcurrent protection.
Wenbin Cao +5 more
doaj +1 more source
Polytechnic and design, 2018 U ovom radu opisani su fenomeni i problemi do kojih dolazi prilikom priključenja transformatora na elektroenergetsku mrežu. Prilikom direktnog priključenja transformatora na mrežu (čak i u praznom hodu) dolazi do pojave visokih tranzijentnih iznosa struje koja može imati razne negativne posljedice. Tranzijentna struja može imati iznos i do desetak puta
Meštrović, Zvonimir +2 more
openaire +3 more sources
Energies, 2018 This paper proposes the inrush current suppressor using an AC chopper in a large-capacity wind power generation system (WPGS) with two squirrel-cage induction machines (SCIMs), which are switched over depending on the wind speed. The input side of the AC
Sho Shibata +3 more
doaj +1 more source
Energies, 2021 When the electromagnetic transients occur in a power transformer, an inrush current is generated in its winding. The inrush current not only affects the performance of the transformer windings, but also affects the lifetime of the transformer.
Wenqi Ge +4 more
doaj +1 more source
Implications of fault current limitation for electrical distribution networks [PDF]
, 2010 This paper explores the potential future need for fault current limitation in the UK's power system, and some of the technical implications of this change.
Blair, S.M. +5 more
core +1 more source
Novel soft-start method for three-phase voltage source rectifier based on virtual resistor control
Archives of Electrical Engineering, 2020 The existence of inrush current poses a significant problem during the start-up process within three-phase voltage-source rectifiers. To address this problem, this study proposes a strategy to suppress the inrush current effectively based on the virtual ...
Kaizhong He, Hongsheng Su
doaj +1 more source
Automatic J–A Model Parameter Tuning Algorithm for High Accuracy Inrush Current Simulation
Energies, 2017 Inrush current simulation plays an important role in many tasks of the power system, such as power transformer protection. However, the accuracy of the inrush current simulation can hardly be ensured.
Xishan Wen, Jingzhuo Zhang, Hailiang Lu
doaj +1 more source
The effect of inrush transients on pv inverter's grid impedance measurement based on inter-harmonic injection [PDF]
, 2010 This paper addresses a cause for false tripping of photovoltaic inverters with antiislanding protection based on impedance measurement with inter-harmonic injection. Earlier discussions about tripping problems happening when several devices are doing the
Bhattacharyya, S. +5 more
core +4 more sources
Effect of CT transient characteristics on transfer of inrush
The Journal of Engineering, 2019 During the inrush period, multiple misoperation accidents of differential protection of transformers happened, which seriously threatened the safe and stable operation of power grid.
Wei Liu +5 more
doaj +1 more source