Active Power Decoupling by Closed-loop Control of Power Oscillations for a Bidirectional Single-Phase DC-AC Converter

A control strategy for the active power decoupling in a single-phase full-bridge based bidirectional dc-ac converter is proposed in this work. An ac-side auxiliary-circuit three-leg topology is used for the implementation. The proposal makes use of the instantaneous power theory for three-phase syst...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on power electronics 2023-10, Vol.38 (10), p.1-9
Main Authors: Fantino, Roberto, Busada, Claudio, Solsona, Jorge
Format: Article
Language:English
Subjects:
Active control
Avalanche photodiodes
Capacitors
Circuits
Closed loops
Data buses
Decoupling
distributed generation
Electric potential
Feedback control
full-bridge converter
Oscillations
Oscillators
Power decoupling
Resistance
single-phase voltage source converter
Topology
Voltage
Voltage control
Voltage measurement
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A control strategy for the active power decoupling in a single-phase full-bridge based bidirectional dc-ac converter is proposed in this work. An ac-side auxiliary-circuit three-leg topology is used for the implementation. The proposal makes use of the instantaneous power theory for three-phase systems, applied to single-phase systems. A closed-loop control in the power domain is implemented, by matching the instantaneous power oscillations in the main-circuit of the converter connected to the grid, with the instantaneous power oscillations in the auxiliary-circuit. The control loop does not employ the measurement of the voltage or current on the dc-bus, nor the voltage on the auxiliary-circuit capacitor. Not requiring a calculation for the voltage reference on the auxiliary-circuit capacitor depending on the circuit parameters, allows to eliminate the second harmonic power oscillations on the dc-bus even in presence of parametric uncertainty. Experimental and simulation results are presented to demonstrate the validity and effectiveness of the proposal.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2023.3292984