2026-04-17T05:42:19Zhttps://recercat.cat/oai/requestoai:recercat.cat:2117/157762026-02-07T07:58:36Zcom_2072_1033col_2072_452950
RECERCAT
author
Chavarría Roé, Javier
author
Biel Solé, Domingo
author
Guinjoan Gispert, Francisco
author
Meza Benavides, Carlos
author
Negroni Vera, Juan José
2012-01-26
This paper presents an energy-balance control strategy for a cascaded single-phase grid-connected H-bridge multilevel inverter linking n independent PV arrays to the grid. The control scheme is based on an energy-sampled data model of the PV system and enables the design of a voltage loop linear discrete controller for each array ensuring the stability of the system for the whole range of PV arrays operating conditions. The control design is adapted to Phase-Shifted and Level-Shifted Carrier PWM to share the control action among the cascadeconnected bridges in order to concurrently synthesize a multilevel waveform and to keep each of the PV arrays at its maximum power operating point. Experimental results carried out on a 7-level inverter are included to validate the proposed approach.Peer ReviewedPostprint (published version)
Open Access
Àrees temàtiques de la UPC::Matemàtiques i estadística
Discrete-time systems.
Control theory.
Control, Teoria de
Models matemàtics
Sistemes discrets en temps
Energy-balance control of PV cascaded multilevel grid-connected inverters under level-shifted and phase-shifted PWMs
Article