Grid forming converters in renewable energy sources dominated power grid: Control strategy, stability, application, and challenges

H Zhang, W Xiang, W Lin, J Wen - Journal of modern power …, 2021 - ieeexplore.ieee.org
The renewable energy sources (RESs) dominated power grid is an envisaged infrastructure
of the future power system, where the commonly used grid following (GFL) control for grid …

A finite control set model predictive control scheme for single-phase grid-connected inverters

M Azab - Renewable and Sustainable Energy Reviews, 2021 - Elsevier
The present article investigates a control scheme for single-phase grid-connected inverter
based on the finite control set model predictive control (FCS-MPC) approach. The proposed …

Vector current control derived from direct power control for grid-connected inverters

Y Gui, X Wang, F Blaabjerg - IEEE Transactions on Power …, 2018 - ieeexplore.ieee.org
We propose a vector current control derived from direct power control (VCC-DPC) for a three-
phase voltage source inverter (VSI) in the synchronous rotating frame through instantaneous …

Stability analysis of the grid-connected inverter considering the asymmetric positive-feedback loops introduced by the PLL in weak grids

C Tu, J Gao, F Xiao, Q Guo… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
The stability of the grid-connected inverter (GCI) system in weak grids is deteriorated due to
the asymmetric positive-feedback loops (APFLs) introduced by the phase-locked loop (PLL) …

Passivity-based analysis and performance enhancement of a vector controlled VSC connected to a weak AC grid

AJ Agbemuko, JL Dominguez-Garcia… - … on Power Delivery, 2020 - ieeexplore.ieee.org
Despite attempts to increase the active power capability of vector-controlled voltage source
converters (VSCs) connected to very weak grids, the interaction between the control …

A multivariable controller in synchronous frame integrating phase-locked loop to enhance performance of three-phase grid-connected inverters in weak grids

S Silwal, M Karimi-Ghartemani, H Karimi… - … on Power Electronics, 2022 - ieeexplore.ieee.org
This article presents a new current controller in the synchronous reference frame and its
associated design for enhancing the performance of three-phase grid-connected inverters …

[HTML][HTML] Autonomous reactive power support for smart photovoltaic inverter based on real-time grid-impedance measurements of a weak grid

H Alenius, R Luhtala, T Messo, T Roinila - Electric Power Systems …, 2020 - Elsevier
A large share of renewable energy production is connected to a weak grid with significant
grid impedance. The transmission impedance causes unintended flow of reactive power to …

Optimized series dynamic braking resistor for LVRT of doubly-fed induction generator with uncertain fault scenarios

J Huang, L Zhang, S Sang, X Xue, X Zhang… - IEEE …, 2022 - ieeexplore.ieee.org
The terminal-connected series dynamic braking resistor (SDBR) is applied to assist the low-
voltage ride-through (LVRT) of the doubly-fed induction generator (DFIG). With the fault …

Control of a type-IV wind turbine with the capability of robust grid-synchronization and inertial response for weak grid stable operation

S Sang, C Zhang, X Cai, M Molinas, J Zhang… - Ieee …, 2019 - ieeexplore.ieee.org
With the increasing penetration of wind power, the effective inertia of the power system
reduces. Besides, a series of interactive instability issues including sub-synchronous …

High performance decoupled active and reactive power control for three-phase grid-tied inverters using model predictive control

M Azab - Protection and Control of Modern Power Systems, 2021 - ieeexplore.ieee.org
Finite control set-model predictive control (FCS-MPC) is employed in this paper to control
the operation of a threephase grid-connected string inverter based on a direct PQ control …