Title: Voltage reconfiguration fault-tolerant technique for two-level three-phase inverter integrated in a wind energy system

Authors: Mokhtar Mahmoud Mohammedi; Azeddine Bendiabdellah; Tayeb Allaoui

Addresses: Diagnosis Group, LDEE Laboratory, Electrical Engineering Faculty, University of Sciences and Technology of Oran, El Mnaouar, BP 1505, Bir El Djir 31000, Oran, Algeria ' Diagnosis Group, LDEE Laboratory, Electrical Engineering Faculty, University of Sciences and Technology of Oran, El Mnaouar, BP 1505, Bir El Djir 31000, Oran, Algeria ' L2GEGI Laboratory, Applied Sciences Faculty, University Ibn Khaldun of Tiaret, BP P 78 Zaâroura, 14000, Tiaret, Algeria

Abstract: The present paper focuses on the study of a system composed of a doubly-fed induction generator (DFIG) linked to the network by the back-to-back converter and related to a wind turbine constituting the wind energy conversion system (DFIG-WECS). In order to reach a maximum power point tracking (MPPT), a control strategy has been used. The IGBT open circuit fault presence can lead to disturbance of the continuity of service. To overcome such a problem a new voltage reconfiguration fault tolerant technique for the two-level three-phase inverter is integrated to our DFIG-WECS system in the aim to preserve its performance and stability under faulty operation. The paper also introduces a performance study of the resulted reconfiguration voltage under MATLAB-Simulink environment and illustrates well the merits and efficiency of the proposed fault tolerant method through the faulty condition.

Keywords: compensation voltages identification; voltage reconfiguration; doubly-fed induction generator; DFIG; fault detection; fault-tolerant; IGBT open-circuit fault; inverter; maximum power point tracking; MPPT; wind turbine.

DOI: 10.1504/IJMIC.2022.125550

International Journal of Modelling, Identification and Control, 2022 Vol.40 No.4, pp.315 - 326

Received: 11 Jun 2021
Accepted: 14 Nov 2021
Published online: 14 Sep 2022 *

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