Results 11 to 20 of about 8,894 (204)
A decentralized power injection-based approach for voltage imbalance mitigation in three-phase distribution networks [PDF]
Scientific ReportsThis voltage imbalance in four-wire, three-phase distribution networks gives rise to negative-sequence and zero-sequence voltage components which increases the total apparent power received from the network. This also increases the energy losses from the
Saatong Kenfack Tsobze +8 more
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Control strategy of parallel three-phase four-leg inverter under unbalanced conditions
Dianzi Jishu Yingyong, 2019 A compound control strategy is proposed in order to solve the low control accuracy and poor anti-disturbance of deadbeat control. In this method, the repetitive control is embedded into the deadbeat control to improve the robustness of the control system
Zhu Zhenyuan +3 more
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Research on topology of a novel three-phase four-leg fault-tolerant NPC inverter [PDF]
Archives of Electrical Engineering, 2022 Diode neutral point clamped (NPC) three-level converters have been widely used in recent years. Aiming at the problems of the high device failure rate and unstable neutral point potential of NPC three-level converters, an NPC three-level circuit with ...
Baoge Zhang +4 more
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Sliding mode controller for four leg shunt active power filter to eliminating zero sequence current, compensating harmonics and reactive power with fixed switching frequency [PDF]
Serbian Journal of Electrical Engineering, 2015 In this paper, the four leg inverter controlled by the three dimensional space vector modulation (3D SVM) is used as the shunt active power filter (SAPF) for compensating the three phase four wire electrical network, by using the four leg ...
Chebabhi Ali +3 more
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Energies, 2022 With the continuous penetration and development of renewable energy power generation, distributed grids and microgrids are becoming increasingly important in power systems.
Guoli Feng +4 more
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IEEE Access, 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.
Dong Yang, Kaiwen Yang, Fengyang Gao
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Research on Three-phase Unbalance of Micro-grid Based on Active Disturbance Rejection Control
发电技术, 2020 Under the condition of three-phase unbalanced load in micro-grid, three-phase four-leg inverter can solve the unbalanced three-phase output voltage because of unbalanced load.
Mengran QIAN, Hui LI, Xinxiu LIU
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Energies, 2020 A complete analysis of the ac output current ripple in four-leg voltage source inverters considering multiple modulation schemes is provided. In detail, current ripple envelopes and peak-to-peak profiles have been determined in the whole fundamental ...
Riccardo Mandrioli +4 more
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Comprehensive Predictive Control Model for a Three-Phase Four-Legged Inverter
Energies, 2023 This paper presents a comprehensive model predictive control (CMPC) method to control a three-phase four-legged inverter (TP4LI) for PV systems. The proposed TP4LI model aims to predictively model and control switching frequency and higher voltage/current switching to reduce losses. The CMPC model can be operated in four modes, namely standard MPC mode
Muhammad M. Fayyaz +3 more
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A Fault-Tolerant T-Type Multilevel Inverter Topology With Increased Overload Capability and Soft-Switching Characteristics [PDF]
, 2017 he performance of a novel three-phase four-leg fault-tolerant T-type inverter topology is introduced in this paper. This inverter topology provides a fault-tolerant solution to any open-circuit and certain short-circuit switching faults in the power ...
Demerdash, Nabeel +4 more
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