Title: Three level inverter-based unified power flow controller

Authors: Khoukha Berrahal; Abd El Malik Bouhentala; Ahmed Bensalem

Addresses: Department of Electrical Engineering, Batna 2 University, Rue Chahid Med El Hadi boukhlouf, Batna 05000, Algeria ' Department of Electrical Engineering, Batna 2 University, Rue Chahid Med El Hadi boukhlouf, Batna 05000, Algeria; Laboratory LGEB, Department of Electrical Engineering, Biskra University, BP 145, 07000-Biskra, Algeria ' Department of Electrical Engineering, Batna 2 University, Rue Chahid Med El Hadi boukhlouf, Batna 05000, Algeria; Laboratory LGEB, Department of Electrical Engineering, Biskra University, BP 145, 07000-Biskra, Algeria

Abstract: Unified power flow controller is a power electronics-based device utilised to improve transmission line capacity and control power flow transmitted by power transmission systems. This paper presents the application of the decoupled control strategy to control independently active and reactive power in the event of changes in the step points of the powers. Two types of controllers are used to handle the control strategy proposed: conventional PI regulator and fuzzy logic PI regulator. The fuzzy logic controller must have high performance to handle the problem of adjustment of power decoupling. Also, a three level neutral point controller inverter is used in both series and shunt parts of the UPFC to get multistep voltage wave and improve the power quality.

Keywords: GTO; power flow control; unified power flow controller; UPFC; FACTS.

DOI: 10.1504/IJPELEC.2020.105148

International Journal of Power Electronics, 2020 Vol.11 No.2, pp.195 - 210

Received: 06 Jun 2017
Accepted: 28 Oct 2017
Published online: 14 Feb 2020 *

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