内容简介: Various methods have been proposed in the past for locating faults on distribution systems, which generally entail iterative procedures. This presentation discusses novel fault-location algorithms for distribution systems that provide a unified solution that eliminates or reduces iterative procedures applicable to all types of faults. Two types of methods, respectively, for nonradial systems and radial systems have been proposed by utilizing voltage and current measurements at the local substation. The proposed methods are based on the bus impedance matrix, through which the substation voltage and current quantities can be expressed as a function of the fault location and fault resistance, a solution to which yields the fault location. The methods are developed in phase domain and, consequently, are naturally applicable to unbalanced systems. The assumptions made are that the distribution network parameters and topology are known so that the bus impedance matrix can be developed. Simulation studies have demonstrated that both types of methods are accurate and quite robust to load variations and measurement errors.
报告人简介: Dr. Yuan Liao is currently an associate professor at the Department of Electrical and Computer Engineering at the University of Kentucky. He is also the Associate Director for the Graduate Program of Power and Energy Institute of Kentucky. Dr. Yuan Liao obtained his Ph.D. in Electrical Engineering from Texas A& M University, College Station, Texas in 2000. He worked as a consulting R&D engineer and then principal consulting R&D engineer at the Corporate Research Center of ABB Inc., Raleigh, North Carolina from 2000 to 2005. His research interests include smart grid and renewable energy.
联系人：康重庆 教授