Journal
IEEE TRANSACTIONS ON POWER DELIVERY
Volume 37, Issue 3, Pages 2071-2082Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPWRD.2021.3103870
Keywords
Circuit faults; Fault location; Integrated circuit modeling; Impedance; Synchronization; Time measurement; Power measurement; Distributed generation; distribution systems; fault location; unsynchronized phasor measurements
Categories
Funding
- European Union (European Social Fund-ESF) through the Operational Programme <> [MIS 5049903]
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This paper introduces a fault location algorithm for unbalanced power distribution systems with distributed generation, which accurately estimates the fault position and related parameters and identifies the most possible fault location candidate among multiple choices.
This paper introduces a fault location algorithm, which is appropriate for unbalanced power distribution systems with distributed generation of any type (i.e., synchronous machines and inverter-based units). The proposed algorithm is based on three-phase circuit analysis and utilizes unsynchronized voltage and current measurements taken from the connection points of the sources. The source impedances are not required to be included in the bus impedance matrix formulation. The algorithm accurately estimates the fault position, the fault resistance and the synchronization angles. Moreover, the algorithm can successfully identify the most possible fault location candidate among multiple choices. Extensive simulation studies demonstrate a very good performance of the proposed fault location algorithm for any fault type under various parameters that may influence its accuracy.
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