Ground-fault Location Algorithm for Ungrounded Radial Distribution Systems

2006 ◽  
Vol 89 (6) ◽  
pp. 503-508 ◽  
Author(s):  
Soon-Ryul Nam ◽  
Sang-Hee Kang ◽  
Jin-Man Sohn ◽  
Jong-Keun Park
Keyword(s):  
Radial Distribution ◽  
Distribution Systems ◽  
Fault Location ◽  
Ground Fault ◽  
Location Algorithm

A voltage-based fault location algorithm for medium voltage active distribution systems

2021 ◽  
Vol 196 ◽  
pp. 107236
Author(s):  
Charalampos G. Arsoniadis ◽  
Christos A. Apostolopoulos ◽  
Pavlos S. Georgilakis ◽  
Vassilis C. Nikolaidis
Keyword(s):  
Distribution Systems ◽  
Fault Location ◽  
Medium Voltage ◽  
Location Algorithm

scholarly journals Adaptive Impedance-Based Fault Location Algorithm for Active Distribution Networks

2018 ◽  
Vol 8 (9) ◽  
pp. 1563 ◽  
Author(s):  
Cesar Orozco-Henao ◽  
Arturo Suman Bretas ◽  
Juan Marín-Quintero ◽  
Andres Herrera-Orozco ◽  
Juan Pulgarín-Rivera ◽  
...  
Keyword(s):  
Distribution Systems ◽  
Fault Location ◽  
Real Life ◽  
Distribution Networks ◽  
Maximum Error ◽  
Energy Resources ◽  
Distributed Energy Resources ◽  
Distributed Energy ◽  
Power Sources ◽  
Location Algorithm

Modern fault location methods are robust; however, they depend strongly on the availability of the measurements given by Distributed Energy Resources (DER). If the communication or synchronism of this information is lost, the fault location is not possible. This paper proposes an adaptive impedance-based fault location algorithm for active distribution systems. The proposal combines information provided by Intelligent Electronic Devices (IEDs) located at the substation, the knowledge of the network topology and parameters, as well as the distributed power sources, to estimate the fault location. Its adaptive feature is given by the use of a Distributed Energy Resources (DER) electrical model. This model is used to estimate the DER current contribution to the fault, in case the information provided by a local IED is not available. The method takes two types of DER technologies into account: Inverter non-interfaced DER (INIDER) and Inverter-interfaced DER (IIDER). The proposed method is validated on a modified IEEE 34-node test feeder, which was simulated with ATP/EMTP. The results obtained using the IEDs information, presented a maximum error of 0.8%. When this information is not available, the method’s performance decreases slightly, obtaining a maximum error of 1.1%. The proposed method showed better performance when compared with two state of the art methods, indicating potential use for real-life applications.

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