Three-phase photovoltaic inverter small-signal modelling and model verification

Author

Puukko, J. ; Nousiainen, L. ; Suntio, T.

Author_Institution

Dept. of Electr. Energy Eng., Tampere Univ. of Technol., Tampere, Finland

fYear

2012

fDate

27-29 March 2012

Firstpage

1

Lastpage

6

Abstract

The number of power electronic converters is increasing in the grid due to favourable political climates regarding renewable energy resources. Grid-parallel inverters have been shown to suffer from reliability problems that may not be solved with pure time domain analysis. Therefore, it is important to analyse the dynamics of these converters also in the frequency domain. This paper reviews small-signal modelling method of three-phase converters and proposes a measurement setup utilizing digital signal processing, which can be used to verify the small-signal model. Experimental measurements from a three-phase photovoltaic inverter will be presented.

Keywords

digital signal processing chips; frequency-domain analysis; photovoltaic power systems; power convertors; power generation reliability; power grids; renewable energy sources; time-domain analysis; digital signal processing; frequency domain analysis; grid-parallel inverter; model verification; power electronic converter; reliability problem; renewable energy resource; three-phase converter; three-phase photovoltaic inverter small-signal modelling; time domain analysis; Three-phase; measurement; modelling; small-signal; transfer function;

fLanguage

English

Publisher

iet

Conference_Titel

Power Electronics, Machines and Drives (PEMD 2012), 6th IET International Conference on

Conference_Location

Bristol

Electronic_ISBN

978-1-84919-616-1

Type

conf

DOI

10.1049/cp.2012.0351

Filename

6242203