Finite Control Set Model Predictive Control for LCL-Filtered Grid-Tied Inverter with Minimum Sensors

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

12 Scopus Citations
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Author(s)

  • Xiaotao Chen
  • Weimin Wu
  • Ning Gao
  • Marco Liserre
  • Frede Blaabjerg

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article number8948337
Pages (from-to)9980-9990
Journal / PublicationIEEE Transactions on Industrial Electronics
Volume67
Issue number12
Online published1 Jan 2020
Publication statusPublished - Dec 2020

Abstract

Recently, finite control set model predictive control (FCS-MPC) has been successfully applied in the grid-tied inverter with the LCL filter. However, to achieve active damping and grid synchronization, many sensors are required, increasing cost, and complexity. In addition, a considerable computational delay should be addressed when it is experimentally implemented, which may degrade the performance of the overall system. In order to reduce the number of sensors, eliminate the computational delay, and enhance the control reliability of the system, a novel FCS-MPC strategy with merely grid-injected current sensors is proposed, which contains four compositions: virtual flux observer, state observer, delay compensation, and FCS-MPC algorithm based on estimations. A 3-kW/3-phase/110-V experimental platform is established to validate that utilizing the proposed observations-based control method with only grid-injected current sensors is capable to obtain satisfactory performance of grid synchronization and high-quality grid-injected current both under balanced and unbalanced grid voltage condition.

Research Area(s)

  • Control reliability, delay compensation, finite control set model predictive control (FCS-MPC), grid synchronization, LCL filter, state observer, virtual flux (VF) observer

Citation Format(s)

Finite Control Set Model Predictive Control for LCL-Filtered Grid-Tied Inverter with Minimum Sensors. / Chen, Xiaotao; Wu, Weimin; Gao, Ning; Chung, Henry Shu-Hung; Liserre, Marco; Blaabjerg, Frede.

In: IEEE Transactions on Industrial Electronics, Vol. 67, No. 12, 8948337, 12.2020, p. 9980-9990.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review