• K Kamala Devi
• Abdul Gafoor Shaik

In the present paper, a wavelet transform based alienation technique has been presented for the detection of islanding condition in a distribution system incorporate with solar energy based distributed generation. A radial five bus system integrated with four PV systems has been considered for the study. The current signals were decomposed with Daubechies wavelet transform at various DG buses to get approximation coefficients. The alienation coefficients of these approximate decompositions were termed as Islanding indexes. These indexes were compared with predetermined threshold to detect Islanding. The same threshold value was utilized to discriminate a transient associated with sudden changes with load. The suggested algorithm was established by few case studies involving changes in incidence angle and load. Thus, the proposed algorithm is found to be successful for Islanding detection.

Alienation coefficients, distributed generation, distribution network, islanding, islanding index, wavelet transform, and load change.

"Wavelet Based Alienation Technique to Detect Islanding in Distribution Network with Solar Farm Distributed Generation ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.148-155, June 2019, Available :http://www.jetir.org/papers/JETIR1906I50.pdf

"Wavelet Based Alienation Technique to Detect Islanding in Distribution Network with Solar Farm Distributed Generation ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp148-155, June 2019, Available at : http://www.jetir.org/papers/JETIR1906I50.pdf