Power loss analysis for single phase grid-connected PV inverters

Author

Nge, Chee Lim ; Midtgård, Ole-Morten ; Norum, Lars ; Sætre, Tor Oskar

Author_Institution

Fac. of Eng. & Sci., Univ. of Agder, Grimstad, Norway

fYear

2009

fDate

18-22 Oct. 2009

Firstpage

1

Lastpage

5

Abstract

This paper presents a method for power loss analysis applied on single-phase grid-connected PV inverter. The often neglected current ripple effects are included in power device switching and conduction losses. The relationships amongst component losses, output inductance, switching frequency and dc-link voltage are investigated. It is shown that current ripple effect is important to power loss analysis due to varying irradiation. The closed form solutions of component losses are proposed and verified with SPICE simulation results.

Keywords

SPICE; invertors; photovoltaic power systems; power grids; SPICE simulation; component losses; conduction losses; dc-link voltage; output inductance; power device switching; power loss analysis; single phase grid-connected PV inverters; switching frequency; Inductance; Inductors; Inverters; Power engineering and energy; Power harmonic filters; Power systems; Thermal loading; Topology; Uninterruptible power systems; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Energy Conference, 2009. INTELEC 2009. 31st International

Conference_Location

Incheon

Print_ISBN

978-1-4244-2490-0

Electronic_ISBN

978-1-4244-2491-7

Type

conf

DOI

10.1109/INTLEC.2009.5352038

Filename

5352038