Autor según el artículo: El Aroudi, Abdelali; Al-Numay, Mohamed; Haroun, Reham; Huang, Meng;

Departamento: Enginyeria Electrònica, Elèctrica i Automàtica

Autor/es de la URV: El Aroudi Chaoui, Abdelali / Haroun Mohamed Abdelkarim, Reham

Palabras clave: Subharmonic oscillation Stability analysis Slope compensation Sliding-mode control Pwm inverter Power Nonlinear behavior Fast-scale instabilities Differential boost inverter Design Current mode control Converter Bifurcation

Resumen: This paper focuses on the steady-behavior of a differential boost inverter used for generating a sinewave AC voltage in rural areas. The analysis of its dynamics will be performed using an accurate approach based on discrete time models and Floquet theory and adopting a quasi-static approximation. In particular, the undesired subharmonic oscillation exhibited by the inverter will be analyzed and its boundary in the parameter space will be predicted and delimited. Combining analytical expressions and computational procedures to determine the quasi-static duty cycle, subharmonic oscillation is accurately predicted. It is found that subharmonic oscillation takes place at critical values of the sinewave voltage reference cycle, which can cause distortion to the input current and degrade the harmonic content of the output voltage. The results provide useful information for the design of the boost inverter to avoid distortion caused by subharmonic oscillation. Namely, the minimum value of the compensation slope and the maximum proportional gain of the AC output voltage controller guaranteeing a pure sinewave voltage and clean inductor current during the entire AC cycle will be determined. Numerical simulations performed on the switched model implemented using PSIM (c) software confirm the theoretical predictions.

Áreas temáticas: Química Process chemistry and technology Physics, applied Materials science, multidisciplinary Materials science (miscellaneous) Materials science (all) Materiais Instrumentation General materials science General engineering Fluid flow and transfer processes Engineering, multidisciplinary Engineering (miscellaneous) Engineering (all) Engenharias ii Engenharias i Computer science applications Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências agrárias i Ciência de alimentos Chemistry, multidisciplinary Biodiversidade Astronomia / física

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

ISSN: 20763417

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

Identificador del autor: 0000-0001-9103-7762 0000-0002-8099-4281

Fecha de alta del registro: 2023-02-19

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

Enlace a la fuente original: https://www.mdpi.com/2076-3417/10/16/5626

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

Referencia al articulo segun fuente origial: Applied Sciences-Basel. 10 (16):

Referencia de l'ítem segons les normes APA: El Aroudi, Abdelali; Al-Numay, Mohamed; Haroun, Reham; Huang, Meng; (2020). Analysis of Subharmonic Oscillation and Slope Compensation for a Differential Boost Inverter. Applied Sciences-Basel, 10(16), -. DOI: 10.3390/app10165626

DOI del artículo: 10.3390/app10165626

Entidad: Universitat Rovira i Virgili

Año de publicación de la revista: 2020

Tipo de publicación: Journal Publications