Results 11 to 20 of about 3,032 (260)
Energies, 2021 An optimal power flow algorithm for unbalanced three-phase distribution grids is presented in this paper as a new tool for grid planning on low voltage level. As additional equipment like electric vehicles, heat pumps or solar power systems can sometimes
Lukas Held +5 more
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A compound control strategy of three‐phase Vienna rectifier under unbalanced grid voltage
IET Power Electronics, 2021 When traditional finite‐set predictive power control is applied to Vienna rectifier, the input current will produce a large number of third harmonics under unbalanced power network, which will seriously affect the normal operation of Vienna rectifier ...
Xingtian Feng +4 more
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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
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Dynamic Control of a DFIG Wind Power Generation System to Mitigate Unbalanced Grid Voltage
IEEE Access, 2020 This paper presents an improved control strategy for a doubly-fed induction generator (DFIG) during unbalanced grid voltage conditions. The proposed strategy was applied in both synchronization and grid-connected conditions.
Ali M. Eltamaly +2 more
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Control strategy for microgrid inverter under unbalanced grid voltage conditions [PDF]
2014 IEEE 23rd International Symposium on Industrial Electronics (ISIE), 2014 This paper presents the theoretical analysis of the inherent reason of current harmonic and power oscillation phenomena in case of operating the microgrid inverter under unbalanced grid voltage conditions. In order to flexibly control the current harmonic and power oscillation, a new stationary frame control strategy is proposed.
Xiaoqiang Guo 0002 +4 more
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IEEE Transactions on Smart Grid, 2022 Objectius de Desenvolupament Sostenible::11 - Ciutats i Comunitats ...
Rolán Blanco, Alejandro +2 more
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Journal of Modern Power Systems and Clean Energy, 2018 In three-phase four-wire systems, unbalanced loads can cause grid currents to be unbalanced, and this may cause the neutral point potential on the grid side to shift.
Xiaojun ZHAO +5 more
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Flexible operation of parallel grid-connecting converters under unbalanced grid voltage [PDF]
2017 19th European Conference on Power Electronics and Applications (EPE'17 ECCE Europe), 2017 According to the European grid code, grid-connecting converters should always be connected to the grid under grid voltage unbalance. However, grid voltage unbalance severely affects the stable operation of the converters and leads to the various power issues, such as active power oscillation, DC-link voltage ripple, and overloading.
Lu, Jinghang +2 more
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Advanced Vector Controller for a Four-Switch Three-Phase Rectifier under Unbalanced Grid Voltage
International Transactions on Electrical Energy Systems, 2022 One of the main challenges of a four-switch three-phase rectifier (FSTPR) is a DC imbalance in capacitor voltages. On the other hand, under unbalanced grid voltage conditions, unbalanced three-phase input current and the DC-link voltage affect the ...
M. Alizadeh Bidgoli, S. Honarbari
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Energies, 2020 In this paper, a systematic synchronization procedure is proposed for a doubly fed induction generator (DFIG) during unbalanced grid voltage conditions.
Akrama Khan +3 more
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