A new methodology for distribution systems faults identification, location and characterization

摘要

Purpose - Identify a new methodology for fault characterization, identification and location in electrical distribution systems, based on the use of matrix algebra. Design/methodology/approach - The developed diagnostic methodology is based on a high precision analytical model of the network using a distributed parameters representation. Findings - Test results have proved the approach to be efficient and precise, while providing a generalized quadripolar model of a line affected by the most common kinds of fault. Research limitations/implications - Generalization to a greater number of fault cases, experimental tests. Practical implications - Utilities are quite interested in such items, since the new required quality standards put severe constraints on faults management and clearance. On the other hand, the system requires a rather complete measurement equipment of secondary substations. Originality/value - The paper presents a new diagnostic technique for faults identification, location and characterization in distribution systems.