标题：A Composite Method for Islanding Detection Based on Vector Shift and Frequency Variation
作者：Hou, Meiyi; Gao, Houlei; Lu, Yijun; Zhang, Yongwu; Cao, Huaming; Lin, Yong
作者机构：[Hou, Meiyi; Gao, Houlei; Lu, Yijun] Shandong Univ, Sch Elect Engn, 73 Jingshi Rd, Jinan 250061, Peoples R China.; [Zhang, Yongwu; Cao, Huaming; Lin 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：Distributed generation; islanding detection; non-detection zone(NDZ);; vector shift(VS); composite method
摘要：Islanding detection is an important issue for distributed generation operating with main network. To solve the problem of reliability and sensitivity of conventional vector shift method, this paper presents a composite islanding detection method utilizing both angle change and frequency variation derived from distributed generator terminal voltage. The method consists of main criterion and auxiliary criterion, each one having its own setting and calculating algorithm. The establishment and working principle of the proposed method are described in detail. PSCAD/EMTDC based simulations on a test system are conducted and analyzed. Simulation results show that the composite method is sensitive and reliable.