Zobrazeno 1 - 10
of 468
pro vyhledávání: '"Four-leg Inverter"'
Publikováno v:
Energies, Vol 17, Iss 22, p 5622 (2024)
Dynamic voltage restores (DVRs) are usually used to mitigate the effect of voltage sag and guarantee sufficient power supply for sensitive loads. However, three-phase voltage cannot be compensated to the desired balance voltage under unbalanced three
Externí odkaz:
https://doaj.org/article/e91d29223dae40c09a65dc3a9475a5a6
Publikováno v:
IEEE Access, Vol 12, Pp 137054-137062 (2024)
In this paper, a new switched-boost four-leg inverter is proposed to suppress the leakage current and provide high reliability. The proposed inverter provides full shoot-through immunity by replacing the active switch in the impedance-source network
Externí odkaz:
https://doaj.org/article/13913eb8acc24a0893c593441b14d95f
Publikováno v:
IEEE Open Journal of Power Electronics, Vol 5, Pp 864-872 (2024)
This paper considers a multi-carrier modulation in which the phase-shifts between the carriers are adjusted to reduce the rms current flowing into the active split dc-link capacitors of four-wire three-phase inverters when the neutral node is modulat
Externí odkaz:
https://doaj.org/article/f97e9196dd7d4f9188b4a72e43704288
Autor:
Aziz Boukadoum, Abla Bouguerne, Tahar Bahi, Mohamed Salah Djebbar, Abderrahmane Khechekhouche
Publikováno v:
Tehnički Vjesnik, Vol 31, Iss 3, Pp 688-695 (2024)
Conventional six-switch inverters, designed for balanced three-phase systems, face challenges in low-voltage networks with mixed single-phase and three-phase loads, leading to voltage imbalances. This imbalance adversely affects equipment, especially
Externí odkaz:
https://doaj.org/article/932ab77d3a40493ea4bd031288b54bfa
Publikováno v:
Symmetry, Vol 16, Iss 9, p 1116 (2024)
Virtual synchronous generator (VSG) control has positive effects on the stability of microgrids. In practical power systems, both single-phase loads and three-phase unbalanced loads are present. The four-leg inverter is an alternative solution for th
Externí odkaz:
https://doaj.org/article/c470f99cfb5848c2a0cb82b8d719ccf3
Publikováno v:
Energy Reports, Vol 9, Iss , Pp 256-266 (2023)
Under the influence of the unbalanced load, the negative and zero sequence components in the output voltage of the three-phase four-leg voltage source inverter(TPFL-VSI) will cause asymmetry voltage. This paper designs an individual sequencing contro
Externí odkaz:
https://doaj.org/article/f34aeac2e32a45aba49353628a177b6d
Publikováno v:
IET Renewable Power Generation, Vol 17, Iss 12, Pp 2964-2977 (2023)
Abstract In a stand‐alone microgrid, voltage control is an important issue to keep the grid balanced under unbalanced load conditions. The other important challenges in microgrids include handling the neutral to the ground voltage (NGV) as well as
Externí odkaz:
https://doaj.org/article/507560ce0f7c43bfbc7a3ab4bb111051
Publikováno v:
IEEE Access, Vol 11, Pp 50145-50156 (2023)
The grid-connected non-isolated photovoltaic inverter system suffers from the leakage current, which increases the loss of the system, and the grid-connected current harmonics impact the normal operation of the equipment. To this end, first, the leak
Externí odkaz:
https://doaj.org/article/79b2d63f48ab44be9e4c7b44c4b1dfbb
Publikováno v:
Energy Reports, Vol 8, Iss , Pp 14347-14361 (2022)
An improved robust model predictive control (MPC) method for a three-phase four-leg active power filter (APF) is proposed in this paper. First, the decoupling model in abc coordinates of the four-leg APF is derived, and then an optimal control law is
Externí odkaz:
https://doaj.org/article/b57c38281c284a83b0b3a48ddad20165
Publikováno v:
Energies, Vol 17, Iss 6, p 1325 (2024)
This study proposes an unbalanced current compensation method based on a four-leg inverter using an artificial neural network (ANN) under unbalanced load conditions. Distribution systems exhibit rapid load variations, and conventional filter-based co
Externí odkaz:
https://doaj.org/article/18e4eb2ddb7e4afa81cf9a6d68db978c