Yuetao Dai

Work place: Kunming University of Science and Technology, Yunnan, China

E-mail: daiyuetao@163.com


Research Interests: Engineering


Yuetao Dai was born in Jiangxi Province, China, in 1987. Now is leaning in faculty of electric power engineering at Kunming University of Science and Technology. The tutor is Professor Shu. The research direction is new type of relay and protection and fault location.

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

By Hongchun Shu Yuetao Dai Xincui Tian

DOI: https://doi.org/10.5815/ijisa.2011.03.05, Pub. Date: 8 May 2011

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.

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