A hybrid MPPT for quasi-Z-source inverters in PV applications under partial shading condition

Stefan Hanafiah, Ayman Ayad, Alexander Hehn, Ralph Kennel

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

21 Scopus citations

Abstract

The quasi-Z-source inverter (qZSI) in a photovoltaic (PV) generation system (PGS) has been very popular among researchers due to its ability to boost the PV voltage with its single-stage topology. In comparison to the conventional two-stage inverter, the qZSI comes with lower cost and higher efficiency. So far, research was focused on different qZSI topologies and their control methods. Not much attention has been given to one of the most important parts of a PGS, i.e. the maximum power point tracker (MPPT). This paper proposes a hybrid MPPT method for a PGS under partial shading condition (PSC) by combining an intelligent particle swarm optimization (PSO) algorithm with a simple but effective perturb and observe (P&O) technique. With these two MPPT algorithms, a much more accurate detection of the maximum power point (MPP) of a PGS under PSC can be attained, which is otherwise unachievable if they work independently. Simulation results based on MATLAB-Simulink are presented to verify the proposed method.

Original languageEnglish
Title of host publication2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering, CPE-POWERENG 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages418-423
Number of pages6
ISBN (Electronic)9781509049639
DOIs
StatePublished - 28 Apr 2017
Event11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering, CPE-POWERENG 2017 - Cadiz, Spain
Duration: 4 Apr 20176 Apr 2017

Publication series

Name2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering, CPE-POWERENG 2017

Conference

Conference11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering, CPE-POWERENG 2017
Country/TerritorySpain
CityCadiz
Period4/04/176/04/17

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