Multi-Functional Model Predictive Control with Mutual Influence Elimination for Three-Phase AC/DC Converters in Energy Conversion

Xiaolong Shi, Jianguo Zhu, Dylan Lu and Li Li
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Xiaolong Shi: School of Electrical and Data Engineering, University of Technology Sydney, Sydney NSW 2007, Australia
Jianguo Zhu: School of Electrical and Information Engineering, University of Sydney, Sydney NSW 2007, Australia
Dylan Lu: School of Electrical and Data Engineering, University of Technology Sydney, Sydney NSW 2007, Australia
Li Li: School of Electrical and Data Engineering, University of Technology Sydney, Sydney NSW 2007, Australia

Energies, 2019, vol. 12, issue 9, 1-17

Abstract: Conventional model predictive control (MPC)-based direct power control of the three-phase full-bridge AC/DC converter usually suffers from the parametric coupling between active and reactive powers. A reference change of either the active or reactive power will influence the other, deteriorating the dynamic-state performance. In addition, the steady-state performance affected by one-step-delay arising from computation and communication processes in the digital implementation should be improved in consideration of switching frequency reduction. In combination with the proposed novel mutual influence elimination constraint, this paper proposes the multi-functional MPC for three-phase full-bridge AC/DC converters to improve both the steady and dynamic performances simultaneously. It has various advantages such as one-step-delay compensation, power ripple reduction, and switching frequency reduction for steady-state performance as well as mutual influence elimination for dynamic capability. The simulation and experimental results are obtained to verify the effectiveness of the proposed method.

Keywords: direct power control; AC/DC converter; model predictive control (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: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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