Comparision between two stand-alone PV configurations: Series PVs versus series VSCs

Author

Kavousi, A. ; Farokhnia, N. ; Vahabzadeh, A. ; Nazari, M. ; Gharehpetian, G.B.

Author_Institution

Electr. Eng. Dept., Amirkabir Univ. of Technol. (Tehran Polytech.), Tehran, Iran

fYear

2011

fDate

17-19 Oct. 2011

Firstpage

1

Lastpage

5

Abstract

In this paper, two standalone PV systems are compared. One of them has two series PVs that are connected to DC/DC and then DC/AC converters for feeding the AC load. The other configuration uses two separate PV and DC/DC converters, with series DC/AC converters on the AC load side. It is shown that the series inverter has advantages like improved harmonic condition, keeping both PVs in maximum power point, especially in shading condition. But, it has disadvantages like increasing the number of components and cost, decreasing reliability and unequal power absorption from each PV.

Keywords

DC-AC power convertors; DC-DC power convertors; invertors; photovoltaic power systems; AC load; DC/AC converters; DC/DC; series inverter; stand-alone PV configurations; Batteries; DC-DC power converters; Harmonic analysis; Inverters; Photovoltaic systems; Radiation effects; Cascade Multilevel Inverters; Maximum power point traking (MPPT); Photovoltaic; Shading effect;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Power Quality and Utilisation (EPQU), 2011 11th International Conference on

Conference_Location

Lisbon

ISSN

2150-6647

Print_ISBN

978-1-4673-0379-8

Type

conf

DOI

10.1109/EPQU.2011.6128934

Filename

6128934