Predictive Control Strategy for DC/AC Converters Based on Direct Power Control

• Published in: IEEE transactions on industrial electronics (1982) Vol. 54; no. 3; pp. 1261 - 1271
• Main Authors: Larrinaga, S.A., Vidal, M.A.R., Oyarbide, E., Apraiz, J.R.T.
• Format: Journal Article
• Language: English
• Published: New York IEEE 01-06-2007; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Analog-digital conversion; Automation; Automotive components; Automotive industry; DC/AC power conversion; Direct current; Electric converters; Filters; Geothermal power generation; Inverters; Modularity; Power control; Power system interconnection; Predictive control; Pulse width modulation; Pulse width modulation converters; Strategy; Voltage control
• ISSN: 0278-0046; 1557-9948
• DOI: 10.1109/TIE.2007.893162

This paper proposes predictive direct power control (P-DPC), a new control approach where the well-known direct power control is combined with predictive selection of a voltage-vectors' sequence, obtaining both high transient dynamics and a constant-switching frequency. The developed P-DPC version is based on an optimal application of three voltage vectors in a symmetrical way, which is the so-called symmetrical 3 + 3 vectors' sequence. The simulation and experimental results of the P-DPC are compared to standard voltage-oriented control (VOC) strategies in a grid-connected three-phase voltage-source inverter under 400-V 15-kVA operation conditions. The P-DPC improves the transient response and keeps the steady-state harmonic spectrum at the same level as the VOC strategies. Due to its high transient capability and its constant-switching behavior, the P-DPC could become an interesting alternative to standard VOC techniques for grid-connected converters