Robust control of grid-connected converters under wide grid impedance variation

2019 ◽  
Author(s):  
Caio R. D. Osorio ◽  
Gustavo G. Koch ◽  
Lucas C. Borin ◽  
Monique R. Nascimento ◽  
Ricardo C. L. F. Oliveira ◽  
...  
Keyword(s):  
Robust Control ◽  
Impedance Variation ◽  
Grid Impedance ◽  
Grid Connected Converters

scholarly journals A Comparison Between Robust Control Design LMIs for Grid-Connected Converters

2021 ◽  
Author(s):  
GUSTAVO GUILHERME KOCH ◽  
CAIO RUVIARO DANTAS OSóRIO ◽  
VINICIUS FOLETTO MONTAGNER
Keyword(s):  
Superior Performance ◽  
Linear Matrix ◽  
Feedback Controllers ◽  
Quadratic Stability ◽  
Slack Variables ◽  
Grid Impedance ◽  
Point Of Common Coupling ◽  
Common Coupling ◽  
Robust Control Design ◽  
Grid Connected Converters

This paper is focused on a comparison between two linear matrix inequality conditions for design of robust state feedback controllers applied for current regulation of gridconnected converters with LCL filters, operating under uncertain grid impedance at the point of common coupling. The first condition is the well known quadratic stability and the second one is the polyquadratic stability, which uses extra matrix variables. It is shown that the condition with slack variables can provide superior performance in terms of ensuring stable and suitable operation for a larger set of uncertainties.

scholarly journals H∞ Robust Control of an LCL-Type Grid-Connected Inverter with Large-Scale Grid Impedance Perturbation

Energies ◽  
2018 ◽  
Vol 11 (1) ◽  
pp. 57 ◽  
Author(s):  
Yingjie Wang ◽  
Jiashi Wang ◽  
Wei Zeng ◽  
Haiyuan Liu ◽  
Yushuo Chai
Keyword(s):  
Robust Control ◽  
Large Scale ◽  
Grid Impedance ◽  
Large Scale Grid ◽  
Grid Connected Inverter ◽  
Scale Grid

Robust Control of GTIs under wide grid impedance ranges: An approach combining metaheuristics and LMIs

2022 ◽  
Vol 120 ◽  
pp. 105010
Author(s):  
Lucas C. Borin ◽  
Caio R.D. Osório ◽  
Gustavo G. Koch ◽  
Ricardo C.L.F. Oliveira ◽  
Vinícius F. Montagner
Keyword(s):  
Robust Control ◽  
Grid Impedance

scholarly journals NDM-based H-infinity robust control of parallel-connected grid-connected converters for V2G

2021 ◽  
Vol 675 (1) ◽  
pp. 012095
Author(s):  
Shilian Zhou ◽  
Longfang Li ◽  
Shujun Ben ◽  
Bo Long ◽  
Yong Chen
Keyword(s):  
Robust Control ◽  
H Infinity ◽  
Grid Connected Converters
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