Comparative analysis of boost and quasi-Z-Source Converters as Maximum Power Point Trackers for PV panel integrated converters

Author

Zakis, Janis ; Rankis, Ivars ; Ribickis, Leonids

Author_Institution

Inst. of Ind. Electron. & Electr. Eng., Riga Tech. Univ., Riga, Latvia

fYear

2014

fDate

1-4 June 2014

Firstpage

1991

Lastpage

1995

Abstract

This paper analyzes two maximum power point tracking (MPPT) converter topologies that are part of an interface converter for the integration of photovoltaics (PV) in the grid. Two different MPPT converter topologies (boost converter and quasi-Z-Source (qZS) converter) were selected and compared. Theoretical comparison includes an analysis of regulations for obtaining continuous source current and comparison of necessary parameters of the reactive elements of the systems. 270 W experimental prototypes of both converters were built and experimentally compared. Theoretical and experimental efficiency estimation is proposed and discussed. Also, the losses in diodes and MOSFETS are evaluated taking into account technical data from datasheets .

Keywords

maximum power point trackers; network topology; power MOSFET; power grids; solar cells; MOSFET loss evaluation; MPPT; PV panel integrated converter; boost converter; comparative analysis; continuous source current; diode loss evaluation; maximum power point tracking converter topology; photovoltaic panel integrated converter; power 270 W; power grid; qZS converter; quasi-Z-source converter; Capacitors; Inductors; MOSFET; Maximum power point trackers; Schottky diodes; Switches; DC-DC power converters; boost converter; photovoltaic system; quasi-Z-source;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics (ISIE), 2014 IEEE 23rd International Symposium on

Conference_Location

Istanbul

Type

conf

DOI

10.1109/ISIE.2014.6864922

Filename

6864922