Comprehensive Predictive Control Model for a Three-Phase Four-Legged Inverter

Muhammad M. Fayyaz, Irtaza M. Syed (), Yi Meng and Muhammad N. Aman
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Muhammad M. Fayyaz: Department of Electrical Engineering, National University of Computer and Emerging Sciences, Islamabad 44000, Pakistan
Irtaza M. Syed: RRC Power & Energy, Round Rock, TX 78681, USA
Yi Meng: RRC Power & Energy, Round Rock, TX 78681, USA
Muhammad N. Aman: School of Computing, University of Nebraska-Lincoln, Lincoln, NE 68588, USA

Energies, 2023, vol. 16, issue 6, 1-18

Abstract: This paper presents a comprehensive model predictive control (CMPC) method to control a three-phase four-legged inverter (TP4LI) for PV systems. The proposed TP4LI model aims to predictively model and control switching frequency and higher voltage/current switching to reduce losses. The CMPC model can be operated in four modes, namely standard MPC mode (Mode I), switching frequency reduction (SFR) mode (Mode II), high voltage/current switching loss reduction (SLR) mode (Mode III), and SFR plus SLR mode (Mode IV, a combination of Modes II and III). The proposed CMPC approach controls the TP4LI to (1) successfully track balanced and unbalanced reference currents with balanced or unbalanced loads; (2) reduce switching losses; and (3) keep the generated current total harmonic distortion (THD) within the industry’s recommended limits. The TP4LI model with the CMPC approach was verified and validated in the MATLAB/Simulink for a PV system. The simulation results show good tracking and performance of the TP4LI for balanced and unbalanced reference currents with balanced and unbalanced loads in all four modes of operation.

Keywords: three-phase four-leg inverter; comprehensive model predictive control; switching frequency reduction; higher voltage/current switching reduction; loss reduction; balanced and unbalanced load (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
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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