Photovoltaic Microinverter Based on Buck-Boost Converter and Discharge Circuit

被引：0

作者：

Ghribi, Mohammed El Bachir ^{[1
]}

Ternifi, Zine Eddine Touhami ^{[2
]}

Bachir, Ghalem ^{[2
]}

Aillerie, Michel ^{[3
]}

机构：

[1] Applied Power Electronics Laboratory (LEPA), Department of Electrical Engineering, Faculty of Electrical Engineering, University of Sciences and Technology of Oran, Bir El Djir,, P.O.B. 1505, El-Mnaouer, Oran,31000, Algeria

[2] Laboratory of Sustainable Development of the Electrical Energy (LDDEE), Department of Electrical Engineering, Faculty of Electrical Engineering, University of Sciences and Technology of Oran, Bir El Djir, P.O.B. 1505, El-Mnaouer, Oran,31000, Algeria

[3] Laboratoire Matériaux Optiques, Photonique et Systèmes (LMOPS), CentraleSupélec, Université de Lorraine, 2 rue E. Belin, P.O.B. 57070, Metz,F-57000, France

来源：

Periodica polytechnica Electrical engineering and computer science | 2024年 / 68卷 / 03期

关键词：

Boost converter - Electric inverters - Electric loads - Electric power factor - Lyapunov methods - Maximum power point trackers - Solar panels - Timing circuits - Topology;

D O I：

10.3311/PPee.24770

中图分类号：

学科分类号：

摘要：

This paper presents a novel topology for photovoltaic microinverters that uses a buck-boost converter coupled with a discharge circuit. The system enables efficient conversion of electrical energy from the solar panel without requiring voltage filters or step-up transformers. For its control, an exponential action control strategy is used, as it allows effective tracking of the reference voltage. The stability of the overall control and inverter system is demonstrated and detailed using the Lyapunov method. The sizing of the components used is also detailed. The performance of this topology is evaluated under various load conditions, revealing low harmonic distortion (THD) in both current and voltage, with the best THD of 1% being obtained at a power factor of 0.8. This makes it a promising solution for photovoltaic energy conversion. © 2024 Budapest University of Technology and Economics. All rights reserved.

引用

页码：240 / 245

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