Open AccessModified T-type topology of three-phase multi-level inverter for photovoltaic systems
Author(s) -
Abderrahmane Ouchatti,
Redouane Majdoul,
Ahmed Moutabir,
Abderrahim Taouni,
Abdelouahed Touati
Publication year - 2022
Publication title -
international journal of power electronics and drive systems/international journal of electrical and computer engineering
Language(s) - English
Resource type - Journals
eISSN - 2722-2578
pISSN - 2722-256X
DOI - 10.11591/ijece.v12i1.pp262-268
Subject(s) - inverter , topology (electrical circuits) , pulse width modulation , photovoltaic system , voltage , computer science , matlab , capacitor , three phase , control theory (sociology) , filter (signal processing) , control (management) , engineering , electrical engineering , artificial intelligence , computer vision , operating system
In this article, a three-phase multilevel neutral-point-clamped inverter with a modified t-type structure of switches is proposed. A pulse width modulation (PWM) scheme of the proposed inverter is also developed. The proposed topology of the multilevel inverter has the advantage of being simple, on the one hand since it does contain only semiconductors in reduced number (corresponding to the number of required voltage levels), and no other components such as switching or flying capacitors, and on the other hand, the control scheme is much simpler and more suitable for variable frequency and voltage control. The performances of this inverter are analyzed through simulations carried out in the MATLAB/Simulink environment on a three-phase inverter with 9 levels. In all simulations, the proposed topology is connected with R-load or RL-load without any output filter.