From Available Synchrophasor Data to Short-Circuit Fault Identity: Formulation and Feasibility Analysis

Abstract

https://eprints.whiterose.ac.uk/ Sadegh Azizi (S'12) received the B.Sc., M.Sc. and Ph.D. degrees all in electrical engineering from K. N.

Wide-Area Identification of the Size and Location of Loss of Generation Events by Sparse PMUs

“…On the other hand, the LoG identification can be easily limited to the disturbed area if the boundaries of that area are observed by PMUs. The same approach has been already introduced and successfully tested by the authors in [21].…”

“…Other generators in the system are each modeled by a sub-transient reactance in series with a constant voltage source. The values of these voltage sources are not needed for our calculations as they do not appear in the superimposed circuit [21]. The Thevenin-Norton equivalent theorem is used to transform this model into a constant current source in parallel with the corresponding reactance [22].…”

Wide area impedance‐based fault location using synchronized/unsynchronized current measurements

“…These methods are classified into two groups: Traveling wave based [24][25][26][27][28] and impedance based. [29][30][31][32][33][34][35][36][37][38][39] Traveling wave based methods require high sampling rates for measurements whereas impedance-based methods need much lower rates. 38 A comparison between traditional and wide area fault location methods can be found in Table 1.…”

“…Wide area fault location methods propose solution that finds the location of the fault with restricted number of measurements that are not obtained from the faulted line directly. These methods are classified into two groups: Traveling wave based 24‐28 and impedance based 29‐39 . Traveling wave based methods require high sampling rates for measurements whereas impedance‐based methods need much lower rates 38 .…”

“…In confronting with GPS signal loss, the proposed procedure of Reference 41 will be vain. In References 29‐32, 34, 37, 42, and 43, when the GPS‐synchronizing signal is not available in some network buses the acquired measurements do not participate in calculations and the fault is located using the remained synchronized measurements. Utilizing the magnitude of measurement instead of synchronizing angle which is absent 33,35,44,45 presented methods in order to overcome the above mentioned issue.…”