Real-Time Implementation of a Fault Location Algorithm for Homogeneous Power Systems

[摘要] This paper presents the implementation of a distance relay model in a real-time simulation platform. The relay is basically used in this work to locate faults in radial homogeneous (i.e., all sections have the same per unit parameters) transmission and distribution systems. The device can also be used to estimate the fault impedance, assuming it is a constant resistance. The document presents a sensitivity study of the fault location algorithm; that is, the paper analyzes the performance of the algorithm for estimating the fault distance and the fault resistance as a function of several parameters involved in the transient simulation; namely, the time-step size, the fault distance, and resistance values, as well as the system structure and model. Some important issues for real-time implementation are also discussed..

[学科分类] 自动化工程

[关键词] Transmission system modeling ;Distribution system modeling ;Relay modeling ;Fault location ;EMTP  ;MATLAB ;Real-time simulation