Low voltage ride through capability of a 5 kW grid-tied solar inverter

Author

Benz, Christian H. ; Franke, W. -Toke ; Fuchs, Friedrich W.

Author_Institution

Danfoss Solar Inverters A/S, Innovation & Technol., Sonderborg, Denmark

fYear

2010

fDate

6-8 Sept. 2010

Abstract

Distributed power generation systems (DPGS) such as wind and solar become more and more widely spread. As a consequence grid operating companies demand system services. As part of the general fault ride through (FRT) requirements this paper deals with low voltage ride through (LVRT) capability of a three-phase-four-wire grid-tied solar inverter. The standard system will be described and necessary changes to the control such as positive (PS), negative (NS) and zero sequence (ZS) separation, a stable phase-locked-loop (PLL) as well as voltage support by means of reactive current as well as stress factors to the hardware will be identified.

Keywords

distributed power generation; invertors; phase locked loops; power grids; power supply quality; power system interconnection; distributed power generation systems; fault ride through requirements; grid-tied solar inverter; low voltage ride; low voltage ride through capability; phase-locked-loop; power quality; reactive current; zero sequence separation; Harmonic analysis; Inverters; Low voltage; Phase locked loops; Power quality; Reactive power; Voltage control; 3 phase 4 wire; FRT; Fault Ride Through; Grid Codes; LVRT; Low Voltage Ride Through; P+Resonant; P-Resonant; PV; Photovoltaik; Power Quality; Solar Inverter; dq0; three-phase-four-wire;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference (EPE/PEMC), 2010 14th International

Conference_Location

Ohrid

Print_ISBN

978-1-4244-7856-9

Type

conf

DOI

10.1109/EPEPEMC.2010.5606829

Filename

5606829