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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS)
Fouad Giri
Caen Normandie University (UNICAEN)
Control & Systems Engineering Electrical & Electronics Engineering

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Fixed-time control of voltage dynamics of three-phase voltage source inverters with LC output filter Mohamed Ghazzali; Mohamed Haloua; Fouad Giri
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 13, No 3: September 2022
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v13.i3.pp1843-1853

Abstract

This paper puts forward a fixed-time cascade voltage control system for threephase voltage source inverters (VSIs) with LC output filter.First, a feedforward decoupling mechanism is used to elminate the dependency between the d-q parts of the control system. Then, proportional-integral (PI) regulators are used for current control in the inner loop. The current reference is provided by a novel VSI control technique developed for fixed-time voltage regulation and reference tracking. The approach suggested in this work tracks and maintains the voltage magnitude at its normalized value in a finite-time and before a maximum settling-time fixed in advance and independent of the system’s initial state. The voltage controller also maintains current stability by providing a smoother and smaller current reference. A comparative study with VSI conventional PI control for linear, nonlinear and unbalanced loads confirms the theoretical results.
Co-Authors Mohamed Ghazzali Mohamed Haloua