Direct Power Control of a Single Stage Current Source Inverter Grid-Tied PV System

Erhab Youssef, Pedro B. C. Costa, Sonia F. Pinto, Amr Amin and Adel A. El Samahy
Additional contact information
Erhab Youssef: INESC-ID, R. Alves Redol 9, 1000-029 Lisboa, Portugal
Pedro B. C. Costa: INESC-ID, R. Alves Redol 9, 1000-029 Lisboa, Portugal
Sonia F. Pinto: INESC-ID, R. Alves Redol 9, 1000-029 Lisboa, Portugal
Amr Amin: Electrical Engineering and Renewable Energy Department, Oregon Institute of Technology, Campus Dr, Klamath Falls, OR 97601, USA
Adel A. El Samahy: Electrical Power and Machines Department, Helwan University, Cairo 11795, Egypt

Energies, 2020, vol. 13, issue 12, 1-20

Abstract: In this paper, a direct power predictive controller (DPPC) is derived for a current source inverter (CSI) based single stage photovoltaic (PV) system. The equations of the dynamics, including AC and DC filters, are formulated directly for the PV power and for the active and reactive power injected in the grid. Then, the prediction equations are synthesized straight for the power, and, at each time instant, the optimal switching vector that guarantees simultaneously the control of the power generated by the PV arrays, and the control of the reactive power in the connection to the grid is chosen. This approach aims to guarantee fast and accurate tracking of the power. The proposed system is then validated through simulation and experimental results, showing that the PV system is able to follow the power references, guaranteeing a fast response to a step in the power, and decoupled active and reactive power control, with minimum total harmonic distortion (<5%) of the currents injected in the grid.

Keywords: single stage PV system; current source inverter; direct predictive power control; power quality (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: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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