Document Type
Article
Publication Date
11-2018
Publication Title
IEEE Transactions on Industry Applications
Abstract
In this paper, a simplified robust control is proposed to improve the performance of a three-phase current controlled voltage source inverter connected to the grid through an inductive-capacitive-inductive ( LCL) filter. The presence of the LCL-filter resonance complicates the dynamics of the control system and limits its overall performance, particularly when disturbances and parametric uncertainty are considered. To solve this problem, a robust active damping method based on the linear active disturbance rejection control (LADRC) is proposed. The simplification is made possible by order reduction in the plant transfer function using Padé approximation. Simulation results show that the proposed LADRC-based current controller achieves high power quality and good dynamic performance, in the presence of parameters uncertainties as well as external disturbances. An experimental prototype is built to verify the effectiveness and practicality of the proposed control strategy.
Repository Citation
Benrabah, Abdeldjabar; Xu, Dianguo; and Gao, Zhiqiang, "Active Disturbance Rejection Control of LCL-Filtered Grid-Connected Inverter Using Pade Approximation" (2018). Electrical and Computer Engineering Faculty Publications. 459.
https://engagedscholarship.csuohio.edu/enece_facpub/459
DOI
10.1109/TIA.2018.2855128
Version
Postprint
Publisher's Statement
© 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.”
Volume
54
Issue
6
Comments
Link to article online: 10.1109/TIA.2018.2855128