An FCS-MPC Strategy for Series APF Based on Deadbeat Direct Compensation

Guifeng Wang, Xujie Gao and Chunjie Li ()
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Guifeng Wang: School of Electrical Engineering and Automation, Jiangsu Normal University, Xuzhou 221008, China
Xujie Gao: School of Electrical Engineering and Automation, Jiangsu Normal University, Xuzhou 221008, China
Chunjie Li: School of Electrical Engineering and Automation, Jiangsu Normal University, Xuzhou 221008, China

Energies, 2023, vol. 16, issue 5, 1-17

Abstract: Aiming at the delay caused by the phase-locked loop (PLL) and harmonic detection in the traditional control of a series active power filter (SAPF), a deadbeat direct control (DBDC)-based finite control set model predictive control (FCS-MPC) strategy for the SAPF is proposed in this work. Firstly, a reference voltage generation mechanism based on direct control is established, which avoids the delay in harmonic detection, thus improving the dynamic response performance of the system. Secondly, the reference current generation mechanism suitable for the SAPF is derived and established using the deadbeat control (DBC) in the αβ coordinate system, based on which the FCS-MPC system is constructed. It eliminates the complex coordinate transformation and PLL and effectively compensates for the full-frequency harmonic voltage. Finally, the proposed control strategy is verified by a simulation and an experiment. The results suggest that the proposed control strategy can effectively compensate for the load voltage and suppress harmonic distortion for the temporary swell and sag of the grid voltage, sudden load changes, and harmonic distortion conditions.

Keywords: series active power filter; direct control; deadbeat control; finite control set model predictive control; harmonic distortion (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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