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2012 | OriginalPaper | Chapter

132. Fast Unrestrained Differential Protection Based on Phaselet Algorithm

Authors : Chuan-qi Wang, Xiang-li Deng, Zhe Zhang, Xiang-gen Yin

Published in: Electrical, Information Engineering and Mechatronics 2011

Publisher: Springer London

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Abstract

The misoperation of differential protection caused by saturation of CT would take place during external fault of transformer. In order to solve this problem, this paper describes a fast unrestrained differential current protection algorithm based on phaselet algorithm, which relies only on sampling data of one-fourth circle. Based on the relationship between phaselet algorithm and full circle Fourier algorithm, this paper induces the linear relationship between the two algorithms. The magnitude-frequency characteristics of phaselet are analyzed and the fast protection criteria is proposed. The feasibility of the proposed algorithm is validated by the static testing and dynamic testing. The relay based on the proposed algorithm has been applied in field. The algorithm proposed has fast operation time and can be influenced by CT saturation.

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Literature
1.
go back to reference He B, Xu X (1998) Protection based on wave comparison. Proc CSEE 18/6:395–398 He B, Xu X (1998) Protection based on wave comparison. Proc CSEE 18/6:395–398
2.
go back to reference Zhang X, He B (2005) A new method to identify inrush current by phasor comparison. Proc CSEE 25/19:43–47 Zhang X, He B (2005) A new method to identify inrush current by phasor comparison. Proc CSEE 25/19:43–47
3.
go back to reference Wen M, Chen D (2003) Simple analysis of phaselet algorithm. Autom Electr Power Syst 27(3):42–44 Wen M, Chen D (2003) Simple analysis of phaselet algorithm. Autom Electr Power Syst 27(3):42–44
4.
go back to reference Ha H, Zhang B (2005) New phaselet-based algorithm of fast distance relay. Autom Electr Power Syst 29(18):39–44 Ha H, Zhang B (2005) New phaselet-based algorithm of fast distance relay. Autom Electr Power Syst 29(18):39–44
5.
go back to reference Zhao Y, Lu Y (2008) Transformer adaptive elliptical restraint differential protection based on phaselet algorithm. Proc CSEE 28(7):84–90 Zhao Y, Lu Y (2008) Transformer adaptive elliptical restraint differential protection based on phaselet algorithm. Proc CSEE 28(7):84–90
6.
go back to reference Cheng D, Zhang Z, Yin X (2000) Digital protective relay (1st edn.). CEPP 7:59–62 Cheng D, Zhang Z, Yin X (2000) Digital protective relay (1st edn.). CEPP 7:59–62
Metadata
Title
Fast Unrestrained Differential Protection Based on Phaselet Algorithm
Authors
Chuan-qi Wang
Xiang-li Deng
Zhe Zhang
Xiang-gen Yin
Copyright Year
2012
Publisher
Springer London
DOI
https://doi.org/10.1007/978-1-4471-2467-2_132