First-Order and High-Order Repetitive Control for Single-Phase Grid-Connected Inverter

With the increasing demand of users for power sources and quality, how to provide high-quality renewable clean energy has become a key issue of power electronics. The main idea of this paper is to develop a composite control including a PI control and repetitive control for a single-phase grid-conne...

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Bibliographic Details
Published in:Complexity (New York, N.Y.) N.Y.), 2020, Vol.2020 (2020), p.1-10
Main Authors: Gao, Guanbin, Zhao, Jun, Zhong, Linzhen, Guo, Cheng, Huang, Yingbo
Format: Article
Language:English
Subjects:
Alternative energy sources
Analysis
Circuits
Clean energy
Computer simulation
Control stability
Controllers
Harmonics
Inverters
Methods
Nuclear energy
Photovoltaic cells
Power electronics
Power sources
Power supply
Renewable resources
Repetitive control
Stability analysis
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Summary:With the increasing demand of users for power sources and quality, how to provide high-quality renewable clean energy has become a key issue of power electronics. The main idea of this paper is to develop a composite control including a PI control and repetitive control for a single-phase grid-connected inverter to eliminate the effects of harmonics, which can obtain better steady-state and dynamic responses of the single-phase inverter system and reduce the net current harmonics. The modelling of a single-phase inverter is first introduced; then a first-order repetitive control is developed for the proposed grid-connected inverter. Moreover, a high-order repetitive controller is adopted to further improve the robustness against the uncertainties in the period of signals. The stability and performance analysis are given for the first-order repetitive control and high-order repetitive control. Finally, comparative simulations are conducted in a circuit-level inverter model, which show the effectiveness of the proposed method.
ISSN:1076-2787
1099-0526
DOI:10.1155/2020/1094386