Study on The Novel Transient Bus Protection Based on Morphological Top-bottom-operator

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Author(s)

Hongchun Shu 1,* Yuetao Dai 1 Xincui Tian 1

1. Kunming University of Science and Technology, Yunnan, China

* Corresponding author.

DOI: https://doi.org/10.5815/ijisa.2011.03.05

Received: 11 Apr. 2010 / Revised: 6 Sep. 2010 / Accepted: 29 Jan. 2011 / Published: 8 May 2011

Index Terms

Bus protection, mathematical morphology, top-bottom-operator, current traveling wave, lightning

Abstract

A novel transient component bus protection based on mathematical morphology is presented in this paper, which takes the morphological max top-bottom-operator of current traveling wave to fast distinguish the bus internal fault from the external fault. The method is based on the principle that the high frequency component of transient traveling wave caused by bus external fault will be attenuated by the bus capacitance but the traveling wave caused by bus internal fault changes slightly. Simulation is carried out with the electromagnetic transient simulation software PSCAD/EMTDC, the result verifies the bus protection is reliable and accurate. The novel bus protection also can treat lightning failure or lightning disturbance happened on transmission lines as bus external fault, without malfunction.

Cite This Paper

Hongchun Shu, Yuetao Dai, Xincui Tian, "Study on The Novel Transient Bus Protection Based on Morphological Top-bottom-operator", International Journal of Intelligent Systems and Applications(IJISA), vol.3, no.3, pp.33-39, 2011. DOI:10.5815/ijisa.2011.03.05

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