Case studies on large PV plants: Harmonic distortion, unbalance and their effects

Author

Gallo, Daniele ; Langella, Roberto ; Testa, Alfredo ; Hernandez, J.C. ; Papic, Igor ; Blazic, Bostjan ; Meyer, Jorg

Author_Institution

DIII, 2nd Univ. of Naples, Aversa, Italy

fYear

2013

fDate

21-25 July 2013

Firstpage

1

Lastpage

5

Abstract

Some case studies on PV systems are reported with reference to harmonic distortion, unbalance and their effects on protection systems. The experiences are related to: i) laboratory experiments made on commercial LV inverters aimed to study their harmonic impact; ii) harmonics produced by an existing PV plant both at lower and higher frequencies; iii) voltage unbalances caused by high penetration of single-phase connected PV sources; and, finally, iv) untimely tripping of protection systems of overhead lines fed by large PV plants.

Keywords

harmonic distortion; invertors; photovoltaic power systems; power overhead lines; power system harmonics; power system protection; PV systems; commercial LV inverters; harmonic distortion; harmonic impact; large PV plants; overhead lines; protection systems; single-phase connected PV sources; voltage unbalance; Current measurement; Harmonic analysis; Harmonic distortion; Inverters; Power system harmonics; Switching frequency; Time-frequency analysis; Harmonics; PV plants; Protections; Unbalance;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Society General Meeting (PES), 2013 IEEE

Conference_Location

Vancouver, BC

ISSN

1944-9925

Type

conf

DOI

10.1109/PESMG.2013.6672271

Filename

6672271