标题：A Novel Distributed Busbar Protection for Digital Substation
作者：Zou, Guibin; Gao, Houlei; Wang, Xiaogang
作者机构：[Zou, Guibin; Gao, Houlei] Shandong Univ, Sch Elect Engn, Jinan, Peoples R China.; [Wang, Xiaogang] Longyuan Power Technol Co Ltd, Yantai, Peoples R 更多
会议名称：Asia-Pacific Power and Energy Engineering Conference (APPEEC)
会议日期：MAR 28-31, 2010
来源：2010 ASIA-PACIFIC POWER AND ENERGY ENGINEERING CONFERENCE (APPEEC)
关键词：IEC61850; digital substation; distributed busbar protection;; instantaneous value based percentage differential algorithm
摘要：For the digital substation based on IEC61850 communication standards, this paper presents a novel scheme of distributed busbar protection. According to the technical characteristics of digital substation, the configuration of distributed busbar protection without central unit is constructed; the requirements of data communication between merging units (MU) and distributed busbar protection units are analyzed and the process bus based on Ethernet is designed; last, the percentage differential algorithm for distributed busbar protection is introduced. Analysis shows that the proposed scheme is a simple, high reliable and feasible distributed busbar protection for digital substation.