Transmission Grid Fault Location by Optimal Placement of Phasor Measurement Units (PMU)

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Rezaei Jegarluei, Mohammad | 2013

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 45043 (05)
University: Sharif University of Technology
Department: Electrical Engineering
Advisor(s): Ranjbar, Ali Mohammad
Abstract:
In this thesis, the problem of placing a minimum number of phasor measurement units (PMUs) in a transmission system is considered so that faults on all lines of the network can be diagnosed and located irrespective of their locations. For this purpose, a PMU placement algorithm is proposed to calculate the required data for impedance-based fault-location of any fault line in the network, achieving the full potential of the circuit laws throughout the system. Another algorithm is then proposed to compute the voltage and current values of the fault line for fault-location purposes. Moreover, as many networks are already equipped with PMUs, the proposed algorithm makes it possible to locate faults at more lines of such networks. The proposed algorithm for PMU placement is examined for 14, 30, 39 and 118 bus IEEE test systems. Additionally, fault-location by synchronized voltage and current measurements, that can be remote from the faulted line, is performed on the 118-bus IEEE test system
Keywords:
Fault Detection ; Fault Location ; Optimal Fault Phasor Measurement (PMU)Placement ; Wide Area Measurement System ; Phasor Measurement Unit

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