Grid-connected PV System Using a Quasi-Z-source Inverter

Jong-Hyoung Park,Tae-Won Chun,Jaeho Choi,Eui-Cheol Nho,Heung-Geun Kim

doi:10.1109/apec.2009.4802773

Grid-connected PV System Using a Quasi-Z-source Inverter

Jong-Hyoung Park, Tae-Won Chun + Show 3 more

https://doi.org/10.1109/apec.2009.4802773

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Publication Date: Feb 1, 2009

Citations: 69

Affiliation: Kyungpook National University, University of Ulsan, Chungbuk National University, Pukyong National University

#Regulation Of DC-link Capacitor Voltage #Maximum Power Point Tracking Control + Show 8 more

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Abstract

This paper presents the MPPT (maximum power point tracking) and PCC (point of common coupling) current control strategy for photovoltaic (PV) grid-connected generating system using the quasi-Z-source inverter (QZSI). At first, in order to explain the above controllers, the characteristic of QZSI is analyzed. And then, the MPPT control technique with a modified P&O method, the PCC current control one for the regulation of DC-link capacitor voltage, and the PWM methods for the proposed system are explained. The feasibility of the propose algorithm is verified through the simulation and experiment with 3 kW system.

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