DocumentCode :
1994488
Title :
A new passive islanding detection scheme for distributed generation systems based on wavelets
Author :
Aljankawey, A.S. ; Liu, Ning ; Diduch, C.P. ; Chang, L.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of New Brunswick-Fredericton, Fredericton, NB, Canada
fYear :
2012
fDate :
15-20 Sept. 2012
Firstpage :
4378
Lastpage :
4382
Abstract :
This paper proposes a passive islanding detection algorithm that is based on a new index termed Zero-Sequence Impedance (ZSI). The ZSI is defined in the time-frequency domain as a means to reliably detect an islanding condition using measurements of voltage and current at the point of common coupling (PCC). The approach is applicable in distributed generation (DG) systems that use power electronic converters to connect to the electric power system (EPS) as well as distributed generators that interface directly to the EPS. The sensitivity of the new index has been assessed across a range of operating conditions and tested using records of off-line data.
Keywords :
distributed power generation; electric current measurement; electric impedance; power convertors; power generation reliability; sequences; time-frequency analysis; voltage measurement; wavelet transforms; DG; EPS; PCC; ZSI; current measurement; distributed generation system; distributed generator; electric power system; passive islanding detection algorithm; point of common coupling; power electronic converter; reliability; time-frequency domain; voltage measurement; wavelet transform; zero sequence impedance; Approximation methods; Arrays; Distributed power generation; Inverters; Wavelet transforms; Islanding detection; distributed generations; wavelet transforms; zero-sequence impedance;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2012 IEEE
Conference_Location :
Raleigh, NC
Print_ISBN :
978-1-4673-0802-1
Electronic_ISBN :
978-1-4673-0801-4
Type :
conf
DOI :
10.1109/ECCE.2012.6342227
Filename :
6342227
Link To Document :
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