.png){kind=icon}
.png){kind=icon}
Return
A Differential Decaying DC Component Based Unit Protection For Transmission Networks With SFCL
.png){kind=icon}
PRE
AI
D
B
P
M
M
M
DOI：10.1109/TPWRD.2025.3649552.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
Several elements supervise transmission line protective relays to assure their security and selectivity. These elements are crucial for fault detection and interruption by various protection schemes. Superconducting fault current limiters (SFCLs) can inherently affect the currents and voltages, thereby impacting the performance of these protection elements. The influence of various SFCLs on transmission line unit protection strategies is investigated, and a differential decaying DC component (DDCCdiff) based logic is proposed in this paper. The DC component at each end is extracted using the adaptive modified FIR notch filter and the modified discrete Fourier transform technique. The energy of the DDCCdiff is estimated using the Hilbert transform, which is used as a fault detection index. Different test systems fitted with various SFCLs, modeled using EMTDC/PSCAD, are used for validation. The obtained findings, as assessed by simulating many disturbances, show that the proposed strategy is effective.
Keywords:
Protection
Circuit faults
Fault currents
Protective relaying
Transforms
Power transmission lines
Impedance
Windings
Iron
Power system stability
Transmission line
differential relay
fault current limiter
decaying DC
adaptive notch filter
Hilbert Huang transform
Journal
IF:
3.7
Papers:
9.1K
Citations:
2.2W
Organization
Cited Papers