Autor según el artículo: Katir, Hanane; Abouloifa, Abdelmajid; Noussi, Karim; Lachkar, Ibtissam; El Aroudi, Abdelali; Aourir, Meriem; El Otmani, Fadwa; Giri, Fouad;

Departamento: Enginyeria Electrònica, Elèctrica i Automàtica

Autor/es de la URV: El Aroudi Chaoui, Abdelali

Palabras clave: Voltage regulators Voltage control Switches Regulators Photovoltaic energy Photovoltaic cells Nonlinear backstepping Multilevel inverters Mppt Maximum power point tracking controller (mppt) Maximum power point trackers Matlab Mathematical model Lyapunov tools Grid-connected photovoltaic system Fault tolerance Electric power factor Electric inverters Dc-dc converters Dc-dc boost converters Dc link voltage regulation Controllers Control systems Cascaded h-bridge multilevel inverters Cascaded h-bridge inverters Bridge circuits Backstepping control Backstepping Back-stepping controls

Resumen: This letter introduces a complete DC-AC conversion system fed by photovoltaic (PV) energy. The system consists of N PV panels, N DC-DC boost converters, N cascaded H-bridge inverters, a DC-link composed of N capacitors and an LCL filter. This work aims at reaching threefold control objectives: i) Extracting the available maximum power by regulating the voltages across the PV panels, ii) Ensuring a unitary power factor, iii) Regulating the DC-link voltage to a desired reference. To achieve the mentioned objectives, a multi-loop regulator is designed. The PV panels are individually controlled to track the maximum power point in order to efficiently operate at either the same or different varying climatic conditions without failures. In addition to the maximum power point tracking (MPPT) controller, two cascaded loops guaranteeing a satisfactory power factor and DC-link voltage regulation are developed. The nonlinear backstepping approach combined with Lyapunov theory are used based on the averaged model for the synthesis of the multi-loop controller. The performance of the studied system is tested via MATLAB / SimPowerSystems environment. The obtained simulation results prove that the proposed controller meets its objectives and demonstrate the efficiency of the chosen control strategy under faulty conditions.

Áreas temáticas: Control and systems engineering Control and optimization Automation & control systems

Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/

Direcció de correo del autor: abdelali.elaroudi@urv.cat

Identificador del autor: 0000-0001-9103-7762

Fecha de alta del registro: 2023-02-19

Versión del articulo depositado: info:eu-repo/semantics/acceptedVersion

Enlace a la fuente original: https://ieeexplore.ieee.org/document/9475528

URL Documento de licencia: http://repositori.urv.cat/ca/proteccio-de-dades/

Referencia al articulo segun fuente origial: Ieee Control Systems Letters. 6 1406-1411

Referencia de l'ítem segons les normes APA: Katir, Hanane; Abouloifa, Abdelmajid; Noussi, Karim; Lachkar, Ibtissam; El Aroudi, Abdelali; Aourir, Meriem; El Otmani, Fadwa; Giri, Fouad; (2022). Fault Tolerant Backstepping Control for Double-Stage Grid-Connected Photovoltaic Systems Using Cascaded H-Bridge Multilevel Inverters. Ieee Control Systems Letters, 6(), 1406-1411. DOI: 10.1109/LCSYS.2021.3095107

DOI del artículo: 10.1109/LCSYS.2021.3095107

Entidad: Universitat Rovira i Virgili

Año de publicación de la revista: 2022

Tipo de publicación: Journal Publications