A Wideband Fault Location Scheme for Active Distribution Systems

Abstract

This paper proposes a fault location technique for future distribution systems with distributed generation. The technique considers the circuit analysis at the non-fundamental frequencies that are generated when a fault occurs. To consider both inductive and capacitive parameters of the line, the distributed parameter line model is used for the analysis. A general 5 th order polynomial is derived to estimate the fault distance and can be used for different fault types. The IEEE 34-bus feeder which is an actual distribution system is simulated and used to assess the accuracy of the method. The results obtained from different test conditions emphasize the high accuracy of the method with almost all cases having an error in estimated distance of less than 100 m.

Proposed Practical Communication Architecture for Automatic Fault Detection and Clearance in Secondary Distribution Power Network

“…At present, there is no defined access communication architecture which can handle these endpoints which are widely deployed [7]. Implementation of wideband faults location schemes described in [8] depend on reliable communication architecture which is missing at present.…”