Impedance-based analysis of active frequency drift islanding detection method for grid-tied inverter system

Author

Bo Wen ; Boroyevich, Dushan ; Burgos, Rolando ; Zhiyu Shen ; Mattavelli, Paolo

Author_Institution

Center for Power Electron. Syst. (CPES), Virginia Tech, Blacksburg, VA, USA

fYear

2014

fDate

18-21 May 2014

Firstpage

3850

Lastpage

3856

Abstract

This paper presents an impedance-based analysis of active frequency drift (AFD) islanding detection method for grid-tied inverter systems. To study the AFD islanding detection method, output impedance of grid-tied inverter is modeled. Islanding detection is analyzed using the interaction between inverter output impedance and load impedance. The analysis further shows that the AFD islanding detection method has the potential to destabilize the grid-connected inverter system when the grid is weak or the size of inverter is large. Experimental results verified the analysis.

Keywords

distributed power generation; invertors; power distribution faults; AFD islanding detection method; active frequency drift islanding detection method; grid-tied inverter system; impedance-based analysis; inverter output impedance; load impedance; Impedance; Inverters; Islanding; Power system stability; Stability analysis; Impedance; inverter; islanding detection; stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE-ASIA), 2014 International

Conference_Location

Hiroshima

Type

conf

DOI

10.1109/IPEC.2014.6870052

Filename

6870052