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Disturbance-observer assisted controller for stand-alone four-leg Voltage Source Inverter

Di Benedetto, Marco; Lidozzi, Alessandro; Solero, Luca; Tang, Mi; Formentini, Andrea; Zanchetta, Pericle

Authors

Marco Di Benedetto

Alessandro Lidozzi

Luca Solero

MI TANG Mi.Tang@nottingham.ac.uk
Research Fellow



Abstract

In this paper, a newly disturbance-observer based control strategy for stand-alone four-leg VSI has been proposed and analyzed. The disturbance-observer operates together with a simple and effective resonant controller in order to regulate the inverter output voltage. In particular, the resonant controller regulates the output voltage fundamental harmonic, whereas the disturbance observer is designed for compensating output voltage harmonics when non-linear loads have to be fed. The new control strategy effectiveness and performance have been validated at first through a full MATLAB/Simulink model and then by experimental results on a dedicated 40 kVA three-phase 4-leg.

Start Date Sep 23, 2018
Publication Date Sep 23, 2018
Publisher Institute of Electrical and Electronics Engineers
Book Title 2018 IEEE Energy Conversion Congress and Exposition (ECCE)
ISBN 9781479973125
APA6 Citation Di Benedetto, M., Lidozzi, A., Solero, L., Tang, M., Formentini, A., & Zanchetta, P. (2018). Disturbance-observer assisted controller for stand-alone four-leg Voltage Source Inverter. In 2018 IEEE Energy Conversion Congress and Exposition (ECCE)doi:10.1109/ecce.2018.8558023
DOI https://doi.org/10.1109/ecce.2018.8558023
Publisher URL https://ieeexplore.ieee.org/document/8558023

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