Modeling and stability analysis of $ LCL $-type grid-connected inverters: A comprehensive overview

Y Han, M Yang, H Li, P Yang, L Xu, EAA Coelho… - IEEE …, 2019 - ieeexplore.ieee.org
Due to the advantages of superior harmonics attenuation ability and reduced size, the LCL
filter has been widely adopted to interface between the inverter and the grid for improving …

Review of local network impedance estimation techniques

MK De Meerendre, E Prieto-Araujo, KH Ahmed… - IEEE …, 2020 - ieeexplore.ieee.org
As a result of increasing variability of network impedance, interest in impedance estimation
techniques is growing. This review contextualises local impedance estimation techniques by …

Adaptive control of grid-connected inverters based on online grid impedance measurements

M Cespedes, J Sun - IEEE Transactions on sustainable energy, 2014 - ieeexplore.ieee.org
Stability of a grid-connected inverter depends on the ratio of the grid impedance to the
inverter impedance. Since the grid impedance changes during normal power system …

Online grid impedance measurement using discrete-interval binary sequence injection

T Roinila, M Vilkko, J Sun - … of Emerging and selected topics in …, 2014 - ieeexplore.ieee.org
Grid impedance affects the stability and control performance of grid-connected power
electronic devices, such as inverters used to integrate wind and solar energy. Adaptive …

Participation analysis in impedance models: The grey-box approach for power system stability

Y Zhu, Y Gu, Y Li, TC Green - IEEE Transactions on Power …, 2021 - ieeexplore.ieee.org
This paper develops a grey-box approach to small-signal stability analysis of complex power
systems that facilitates root-cause tracing without requiring disclosure of the full details of the …

MIMO-identification techniques for rapid impedance-based stability assessment of three-phase systems in DQ domain

T Roinila, T Messo, E Santi - IEEE Transactions on Power …, 2017 - ieeexplore.ieee.org
Grid impedance and the output impedance of grid-connected inverter are important
parameters for the operation of grid-connected systems, such as solar, wind, and other …

Online grid-impedance measurement using ternary-sequence injection

T Roinila, T Messo - IEEE Transactions on Industry Applications, 2018 - ieeexplore.ieee.org
Grid impedance affects the stability and control performance of grid-connected power-
electronics devices, such as inverters, used to integrate wind and solar energy. Adaptive …

Implementation of real-time impedance-based stability assessment of grid-connected systems using MIMO-identification techniques

R Luhtala, T Roinila, T Messo - IEEE Transactions on Industry …, 2018 - ieeexplore.ieee.org
Grid impedance has a major effect on the operation of inverter-connected systems, such as
renewable energy sources. Stability of such system depends on the ratio of the inverter …

Perturbation amplitudes design method based on confidence interval evaluation for impedance measurement

M Li, H Nian - IEEE Transactions on Industrial Electronics, 2024 - ieeexplore.ieee.org
Due to the growing demand for broadband impedance modeling and stability analysis of
renewable power generation equipment, extensive research has been conducted on …

[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 …