An overview of four-leg converters: Topologies, modulations, control and applications
In three-phase unbalanced systems, where the circulation of zero sequence current is
necessary, four-leg converters provide a neutral connection for single-phase or other …
necessary, four-leg converters provide a neutral connection for single-phase or other …
Unbalance mitigation strategies in microgrids
AS Vijay, S Doolla, MC Chandorkar - IET Power Electronics, 2020 - Wiley Online Library
Unbalance or asymmetry in the distribution network is a well‐known power quality issue. In
the modern active distribution system, with the increasing penetration of renewables, this …
the modern active distribution system, with the increasing penetration of renewables, this …
Application of three-dimensional unbalanced coordinate transformation to stand-alone four-leg voltage-source inverter
G Tan, J Wei, W Zhao, L Qi… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Three-phase four-leg voltage-source inverter has been extensively investigated in recent
years for its compactness, small size, and high efficiency, and it has been proved to be the …
years for its compactness, small size, and high efficiency, and it has been proved to be the …
Closed-form harmonic compensation using resonant controllers applied to four-leg VSI
Harmonic compensation employing resonant controllers applied to voltage source inverters
(VSIs) generally requires complex techniques or a trial-and-error process to design the …
(VSIs) generally requires complex techniques or a trial-and-error process to design the …
Decoupled Continuous Control Set Model Predictive Control for T-type Three-Phase Four-Leg ThreeLevel Inverters Driving Constant Power Loads
Y Zhu, H Wen, Y Yang, J Mao, P Wang… - … on Power Electronics, 2024 - ieeexplore.ieee.org
The control coupling and stability of three-phase photovoltaic systems with constant power
loads (CPLs) are two key technical issues that urgently need to be addressed. However …
loads (CPLs) are two key technical issues that urgently need to be addressed. However …
A robust performance analysis of a solar PV-battery based islanded microgrid inverter output voltage control using dual-loop PID controller
This paper proposes a performance indices-based voltage control of an isolated microgrid
(MG) system. For this purpose, the system performance parameters such as integral …
(MG) system. For this purpose, the system performance parameters such as integral …
Three phase four-wire inverter for grid-disconnected operation
In this work, the modeling of a three-phase four wires inverter and the design of two control
schemes for its grid-disconnected operation are presented. The advantages of the four-wire …
schemes for its grid-disconnected operation are presented. The advantages of the four-wire …
A Novel Hybrid Pulse Train Control Strategy to Mitigate Voltage Unbalance Rate in Stand-alone Four-leg Voltage Source Inverter System
Y Wang, J Xu, L Wang, X Guo - IEEE Journal of Emerging and …, 2024 - ieeexplore.ieee.org
Three-phase four-leg voltage-source inverter (FL-VSI) has the advantages of flexible control
and high power density. For FL-VSI with three-phase asymmetric loads, positive-sequence …
and high power density. For FL-VSI with three-phase asymmetric loads, positive-sequence …
Digital control of a three-phase four-leg inverter to feeds non-linear loads
This paper presents a new control strategy for three-phase four-leg inverters, to meet the
requirements of total and individual harmonic content imposed by IEC 61000-2-2 when the …
requirements of total and individual harmonic content imposed by IEC 61000-2-2 when the …
Reactive power control and neutral current elimination of four wire five level NPC inverter based STATCOM using 3D-SVPWM technique
In this paper, three phase four wire five level Neutral Point Clamped Inverter (NPCI) based
Static synchronous Compensator (STATCOM) is implemented for reactive power control and …
Static synchronous Compensator (STATCOM) is implemented for reactive power control and …