Adaptive Reference Trajectory for Power Quality Enhancement in Three-Phase Four-Wire Standalone Power Supply Systems with Nonlinear and Unbalanced Loads

Abdelhakim Saim, Azeddine Houari, Mourad Ait Ahmed, Ali Djerioui, Mohamed Machmoum, Josep M. Guerrero

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

3 Citationer (Scopus)
56 Downloads (Pure)

Abstrakt

This article presents an advanced control strategy for power quality enhancement in standalone power supply systems (PSSs) with grid forming four-leg voltage source inverters (FL-VSIs). Indeed, an online adaptive reference generator (ARG) with a gray wolf optimizer (GWO) is proposed to sustain the control performances of a feedback linearization control (FLC) strategy and improve its robustness against load-side disturbances and system parameters' uncertainties. The key purpose of the proposed GWO-based ARG is to compensate for load and phase disturbances through smooth reference adjustments, in order to improve the voltage waveforms' quality and symmetry and conform to the existing power quality standards and metrics. The design methodology of the proposed control approach is thoroughly detailed, and its effectiveness is asserted through simulation and experimental tests, demonstrating its superiority in maintaining the voltage waveforms within the required standard limitations even under unbalanced and nonlinear loading conditions.
OriginalsprogEngelsk
Artikelnummer8960317
TidsskriftIEEE Journal of Emerging and Selected Topics in Power Electronics
Vol/bind8
Udgave nummer2
Sider (fra-til)1593-1603
Antal sider11
ISSN2168-6777
DOI
StatusUdgivet - jun. 2020

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