Results 11 to 20 of about 381,596 (303)

Impedance-Based Analysis of DC-Link Voltage Dynamics in Voltage-Source Converters

open access: yesIEEE Transactions on Power Electronics, 2019
This paper addresses the stability issues caused by the dc-link voltage control of grid-connected voltage-source converters. An analytical impedance model is developed first for capturing the interactions between the dc-link voltage control and ac ...
Frede Blaabjerg   +2 more
exaly   +2 more sources

Passivity-Based Analysis and Design of Linear Voltage Controllers For Voltage-Source Converters

open access: yesIEEE Open Journal of the Industrial Electronics Society, 2020
This article presents a systematic evaluation on the impedance passivity of voltage-controlled voltage-source converters. The commonly used single- and dual-loop control structures with different linear controllers are compared extensively, considering ...
Yicheng Liao   +2 more
doaj   +2 more sources

Unified Modular State-Space Modeling of Grid-Connected Voltage-Source Converters

open access: yesIEEE Transactions on Power Electronics, 2020
This article proposes a modular state-space modeling framework for grid-connected voltage-source converters, where the different control loops, including the ac current control, the phase-locked loop, the dc-link voltage control, and the ac voltage ...
Dongsheng Yang, Xiongfei Wang
exaly   +2 more sources

Development of Fractional Order Modeling of Voltage Source Converters

open access: yesIEEE Access, 2020
This paper proposes a mathematical fractional order modelling of Voltage Source Converters (VSC). Fractional behaviour helps to model and describe a real object more accurately than the integer order model.
Monika Sharma   +3 more
doaj   +2 more sources

Optimization of Impedance-Source Galvanically Isolated DC–DC Converters With Reduced Number of Switches

open access: yesIEEE Access, 2022
In this study, a new type of Z-source converter comprising galvanic isolation transformers is introduced based on classical non-isolated Z-source converters, which are promising devices for renewable applications. Compared to the typology of conventional
Naser Fakhri   +7 more
doaj   +1 more source

Grid-Forming Control of Voltage Source Converters Based on the Virtual-Flux Orientation

open access: yesIEEE Access, 2023
The increasing penetration of renewable generation in power systems is causing growing concern about system stability. Grid-forming (GFM) control has been appointed as the technology required for achieving a high penetration of renewables in the grid, as
J. L. Rodríguez-Amenedo   +5 more
semanticscholar   +1 more source

A Review of Passive Power Filters for Three-Phase Grid-Connected Voltage-Source Converters

open access: yesIEEE Journal of Emerging and Selected Topics in Power Electronics, 2016
Remus Narcis Beres   +2 more
exaly   +2 more sources

Black Start and Voltage Establishment Strategy for PMSG-Based Wind Turbine

open access: yesFrontiers in Energy Research, 2022
During the black start, backup ac power sources such as diesel generators can offer line-side voltage reference for wind turbine and keep line-side converter of wind turbine work properly so that the dc-link capacitor voltage within converter can be ...
Xiaotong Ji   +6 more
doaj   +1 more source

Nonlinear Transient Stability Analysis of Phased-Locked Loop-Based Grid-Following Voltage-Source Converters Using Lyapunov’s Direct Method

open access: yesIEEE Journal of Emerging and Selected Topics in Power Electronics, 2021
In this article, using Lyapunov’s stability theorem, the transient stability conditions for a grid-following voltage-source converter (VSC) are found. These conditions take into account both the grid specifications and the VSC’s dynamics.
Milad Zarif Mansour   +5 more
semanticscholar   +1 more source

A Universal Controller for Grid-Connected Voltage-Source Converters

open access: yesIEEE Journal of Emerging and Selected Topics in Power Electronics, 2021
The power-synchronization control (PSC) and vector current control (VCC), the latter including cascaded outer loops, are, respectively, considered to be grid-forming and grid-following schemes. They have significant structural differences.
L. Harnefors   +4 more
semanticscholar   +1 more source

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