Paper Info
Title
Robust Control Strategy Design for Single-Phase Grid-Connected Converters under System Perturbations
Abstract
In single-phase grid-connected converters, unexpected perturbations and variations of system parameters can deteriorate the performance of grid current and dc-link voltage control and even jeopardize the stability and operation of loads. In this paper, a robust control strategy for the single-phase grid-connected converter operating under multiple system perturbations is proposed. An adaptive quasi-proportional-resonant (AQ-PR) controller for the grid current is adopted in combination with an equivalent inductance identification algorithm, which assures that the parameters of the AQ-PR controller can be online calibrated to attain accurate current regulation under ac-side inductance uncertainties. A super-twisting sliding mode (ST-SM) controller for the dc-link voltage is proposed to enhance system behavior under both internal and external disturbances. The convergence of the controller is ensured by utilizing Lyapunov theory. Experimental prototype and rigorous tests are presented to validate the feasibility and robustness of the proposed approach under various perturbations.
Year
DOI
Venue
2019
10.1109/tie.2019.2902791
IEEE Transactions on Industrial Electronics
Keywords
Field
DocType
Voltage control,Perturbation methods,Inductance,Resonant frequency,Robust control,Control systems,Current control
Lyapunov function,Control theory,Inductance,Control theory,Equivalent series inductance,Control engineering,Robustness (computer science),Converters,Control system,Engineering,Robust control
Journal
Volume
Issue
ISSN
66
11
0278-0046
Citations 
PageRank 
References 
0
0.34
0
Authors
5
Name
Order
Citations
PageRank
Jinhui Xia100.68
Yuanbo Guo200.34
xiaohua zhang324.48
Juri Jatskevich421829.52
Navid Amiri500.68