Universal Journal of Electrical and Electronic Engineering Vol. 2(1), pp. 1 - 5
DOI: 10.13189/ujeee.2014.020101
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Islanding Detection in Distribution Networks with Distributed Energy Resources before Main Circuit Breaker Opening

M. R. Vatani ^*, M. J. Sanjari , G. Gharehpetian
Electrical Engineering Department, Amirkabir University of Technology, 424, Hafez Avenue, Tehran, Iran

ABSTRACT

The new method for islanding detection in distribution network is presented in this paper. The islanding conditions should be detected as soon as possible. Therefore, this paper presents a new method that detects the islanding condition before main circuit breaker opening. The proposed method is based on the zero sequence angle of the current measured at the utility side of the utility circuit breaker. The measured parameter has a unique characteristic in the islanding conditions. The discrete wavelet transform is applied to extract the feature from the measured angle. This feature determines the islanding condition from non-islanding ones. The accuracy and efficiency of the proposed method for islanding detection is confirmed by simulation results. This method is effective for islanding detection in distribution network with high penetration of distributed generations. The proposed method causes no power quality problems for distribution network and can be developed in smart grids.

KEYWORDS
Islanding Detection, Distributed Generation, Discrete Wavelet Transform, Utility Current Zero Sequence

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] M. R. Vatani , M. J. Sanjari , G. Gharehpetian , "Islanding Detection in Distribution Networks with Distributed Energy Resources before Main Circuit Breaker Opening," Universal Journal of Electrical and Electronic Engineering, Vol. 2, No. 1, pp. 1 - 5, 2014. DOI: 10.13189/ujeee.2014.020101.

(b). APA Format:
M. R. Vatani , M. J. Sanjari , G. Gharehpetian (2014). Islanding Detection in Distribution Networks with Distributed Energy Resources before Main Circuit Breaker Opening. Universal Journal of Electrical and Electronic Engineering, 2(1), 1 - 5. DOI: 10.13189/ujeee.2014.020101.