Volume 16, Issue 1 (March 2020)                   IJEEE 2020, 16(1): 13-25 | Back to browse issues page

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Toodeji H. A Hybrid Switching Technique for Single-Phase AC-Module PV System to Reduce Power Losses and Minimize THD. IJEEE 2020; 16 (1) :13-25
URL: http://ijeee.iust.ac.ir/article-1-1618-en.html
A Hybrid Switching Technique for Single-Phase AC-Module PV System to Reduce Power Losses and Minimize THD
H. Toodeji
Abstract:   (3466 Views)
This paper proposes a hybrid switching technique for a domestic PV system with AC-module architecture. In this PV system, independent control of PV modules, which are directly connected to DC terminals of a single-phase cascaded multilevel inverter, makes module-level MPPT possible to extract maximum available solar energy, especially in partial shading conditions. As one of the main contributions, the proposed hybrid method employs a fundamental-based switching technique to decrease power losses, which directly affect the efficiency of solar energy conversion. In addition, fast dynamic response of the introduced hybrid technique lets the PV system to harvest more power in partial shading conditions. Producing a waveform with minimized THD in steady-state conditions is another advantage of the proposed switching technique. In this paper, the advantages of the proposed hybrid method are verified by the simulation of a test PV system with both conventional SPWM and proposed switching techniques in MATLAB/Simulink under various partial shading conditions.
Keywords: Cascaded Multilevel Inverter , Fundamental Frequency Switching Technique , Single-Phase PV System , Switching Losses , THD Minimization
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  • Performing module-level MPPT in partial shading conditions with no need for DC-DC converter in an AC-module architecture.
  • Proposing a hybrid switching technique to reduce switching power losses reduction and minimize THD of the output waveform.

Type of Study: Research Paper | Subject: Power Electronics Applications
Received: 2019/09/27 | Revised: 2019/11/14 | Accepted: 2019/11/16
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© 2022 by the authors. Licensee IUST, Tehran, Iran. This is an open access journal distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) license.