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

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  • Cheng Guo
  • Linzhen Zhong
  • Jun Zhao
  • Guanbin Gao
  • Yingbo Huang

Abstract

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.

Suggested Citation

  • Cheng Guo & Linzhen Zhong & Jun Zhao & Guanbin Gao & Yingbo Huang, 2020. "First-Order and High-Order Repetitive Control for Single-Phase Grid-Connected Inverter," Complexity, Hindawi, vol. 2020, pages 1-10, August.
    • Handle: RePEc:hin:complx:1094386
    DOI: 10.1155/2020/1094386
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