MULTILEVEL INVERTER FOR GRID-CONNECTED PHOTOVOLTAIC SYSTEMS

Authors

  • DALILA BERIBER Laboratory of Instrumentation, Faculty of Electronics and Computer Science, University of Sciences and Technology Houari Boumediene, BP 32 El-Alia, 16111 Bab-Ezzouar
  • ABDELAZIZ TALHA Laboratory of Instrumentation, Faculty of Electronics and Computer Science, University of Sciences and Technology Houari Boumediene, BP 32 El-Alia, 16111 Bab-Ezzouar
  • ABDELLAH KOUZOU Faculty of Science and Technology, Djelfa University
  • AMAR GUICHI University of Mohamed Boudiaf, Faculty of Technology, BP. Box 166, M’sila
  • FARID BOUCHAFAA Laboratory of Instrumentation, Faculty of Electronics and Computer Science, University of Sciences and Technology Houari Boumediene, BP 32 El-Alia, 16111 Bab-Ezzouar

Keywords:

Maximum power point tracking, Boost converter, Photovoltaic, Grid, Multilevel, Fuzzy logic

Abstract

In the last years, the increasing interest in substituting the conventional huge, centralized power generation systems with distributed renewable energy sources has gained more attention; especially the photovoltaic (PV) distributed energy sources due to their various advantages and benefits. Besides, it becomes quite possible to produce a nearly sinusoidal output voltage waveform that satisfies the grid connection criteria by the use of multilevel voltage source inverters at the grid level. These types of inverters have known an important development that offers more advantages in comparison to their counterparts topologies where the produced ac output voltage is made up of several levels of voltages with lower THD content. In this context, a new power conversion structure is applied to the grid-connected photovoltaic systems where the three-phase three-level neutral point clamped (NPC) multilevel inverter is used. The modeling and the control of the grid-connected PV power system are investigated and each component of the system is presented and discussed in detail. The effectiveness of the proposed structure is checked with the obtained simulation results for the whole system using MATLAB/SIMULINK.

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Published

01.07.2022

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Section

Électrotechnique et électroénergétique / Electrical and Power Engineering