Results 1 to 10 of about 8,674 (155)

Leakage Current Elimination of Four-Leg Inverter for Transformerless Three-Phase PV Systems [PDF]

IEEE Transactions on Power Electronics, 2016
Eliminating the leakage current is one of the most important issues for transformerless three phase photovoltaic (PV) systems. In this paper, the leakage current elimination of a three-phase four-leg PV inverter is investigated. With the common mode loop model established, the generation mechanism of the leakage current is clearly identified. Different
Guo, Xiaoqiang, He, Ran, Jian, Jiamin, Lu, Zhigang, Sun, Xiaofeng, Guerrero, Josep M.; id_orcid 0000-0001-5236-4592   +5 more
core   +6 more sources

A new control scheme for three-phase four-leg inverter

Dianzi Jishu Yingyong, 2018
In the unbalanced or non-linear load conditions, the ordinary three-phase three-leg inverter can not produce three-phase symmetrical voltage, based on the Simulink simulation platform, this paper presents a new closed-loop control design scheme for three-
Sun Lingfang, Li Zhiyuan, Ji Huichao
doaj   +2 more sources

Three-phase four-leg flying-capacitor multi-level inverter-based active power filter for unbalanced current operation. [PDF]

IET Power Electronics, 2013
This study describes a new application of flying capacitor multi-level inverters whereby a three-phase, four-leg three-level inverter is used for harmonic current cancellation and unbalanced current compensation in a four-wire system.
Benjamin Chong, Clarke E., Dastfan A., Fang Z.P., Li Zhang, Michael J. Waite, Salo M., Zhang L.   +7 more
core   +3 more sources

Digital Predictive Current Control of a Three-Phase Four-Leg Inverter

IEEE Transactions on Industrial Electronics, 2013
While the classical control techniques for threephase two-level four-leg inverters are based on pulse width modulation or three-dimensional space vector modulation, this paper presents a simple digital current control strategy without the modulation stage.
Marco Rivera, Venkata Yaramasu, Ana-Maria Llor, José R. Rodríguez, Bin Wu 0007, Maurice Fadel   +5 more
openaire   +3 more sources

A State-Space Approach to the Modelling and Control of the Neutral Leg of a Four Legs, Three-Phase Inverter [PDF]

IEEE Transactions on Industrial Electronics, 2022
In this paper, a novel approach to determine the model of an ICNL (Independently Controlled Neutral Leg) is proposed. Based on this model, a cascaded control method is developed to provide a steady neutral point connection for a three-phase four-wire inverter and to balance the two DC capacitors voltages of a split DC-bus.
Massimiliano Passalacqua, Gislain Grosjean, Simon Kissling, Mokhtar Bozorg, Mario Marchesoni, Mauro Carpita   +5 more
openaire   +4 more sources

Minimum Loss Discontinuous Pulse-Width Modulation Per Phase Method for Three-Phase Four-Leg Inverter

IEEE Access, 2020
The three-phase four-leg inverter (TPFLI) provides unbalanced voltage to a load or injects unbalanced current to a grid to compensate unbalanced current. However, it has a high switching loss because of the fourth leg. This paper presents a discontinuous
Soo Yeon Kim, Sung Geun Song, Sung Jun Park   +2 more
doaj   +3 more sources

An individual sequencing control strategy for three-phase four-leg inverter under unbalanced loads

Energy Reports, 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.
Hanzhou Jiang, Huan Pan, Bin Shang
doaj   +3 more sources

Model Predictive Control for Three-Phase Four-Leg Grid-Tied Inverters

IEEE Access, 2017
In order to improve the quality of the power injected into a grid, this paper presents a model predictive control strategy for three-phase four-leg grid-tied inverters. For the convenience of optimization, the discrete-time model of the inverter in which
Qihong Chen, Xiaoru Luo, Liyan Zhang, Shuhai Quan   +3 more
doaj   +2 more sources

A Three-Phase Four-Leg Inverter-Based Active Power Filter for Unbalanced Current Compensation Using a Petri Probabilistic Fuzzy Neural Network

Energies, 2017
A three-phase four-leg inverter-based shunt active power filter (APF) is proposed to compensate three-phase unbalanced currents under unbalanced load conditions in grid-connected operation in this study.
Kuang-Hsiung Tan, Faa-Jeng Lin, Jun-Hao Chen   +2 more
doaj   +3 more sources

Study on the Current-Limiting-Capable Control Strategy for Grid-Connected Three-Phase Four-Leg Inverter in Low-Voltage Network

Energies, 2016
The three-phase four-leg inverter can produce balanced voltages even with unbalanced loads, yet its controller design is quite complicated. Based on the analysis on time domain equations, a decoupled sequence control strategy for the three-phase four-leg
Botong Li, Jianfei Jia, Shimin Xue
doaj   +3 more sources