TY - GEN
T1 - Localized Measurement-Based Non-Unit Protection Scheme for Flexible DC Microgrid
AU - Srivastava, Chetan
AU - Tripathy, Manoj
AU - Wang, Li
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - The dc microgrid offers an efficient platform for integrating diverse distributed generators and renewable sources. Accurate and fast fault identification is critically required to avert the adverse effect of high fault current due to low impedance dc cables. Overcurrent-based schemes can't offer the desired selectivity. However, the differential methods deliver high selectivity, but the time synchronization delay and communication failure make such schemes vulnerable. This work utilizes the voltage and its derivative across the reactance connected at line ends to implement the protection scheme. The proposed method exploits localized measurements and don't require complex communication infrastructure. The suggested scheme is sensitive to faults with high impedance and delivers high selectivity with prompt fault isolation in a stipulated time frame. The scheme's performance is estimated using data from the mesh-type flexible dc microgrid structure established on PSCAD/EMTDC platform under various operating scenarios.
AB - The dc microgrid offers an efficient platform for integrating diverse distributed generators and renewable sources. Accurate and fast fault identification is critically required to avert the adverse effect of high fault current due to low impedance dc cables. Overcurrent-based schemes can't offer the desired selectivity. However, the differential methods deliver high selectivity, but the time synchronization delay and communication failure make such schemes vulnerable. This work utilizes the voltage and its derivative across the reactance connected at line ends to implement the protection scheme. The proposed method exploits localized measurements and don't require complex communication infrastructure. The suggested scheme is sensitive to faults with high impedance and delivers high selectivity with prompt fault isolation in a stipulated time frame. The scheme's performance is estimated using data from the mesh-type flexible dc microgrid structure established on PSCAD/EMTDC platform under various operating scenarios.
UR - http://www.scopus.com/inward/record.url?scp=85185764559&partnerID=8YFLogxK
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U2 - 10.1109/ETFG55873.2023.10407617
DO - 10.1109/ETFG55873.2023.10407617
M3 - Conference contribution
AN - SCOPUS:85185764559
T3 - 2023 IEEE International Conference on Energy Technologies for Future Grids, ETFG 2023
BT - 2023 IEEE International Conference on Energy Technologies for Future Grids, ETFG 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 IEEE International Conference on Energy Technologies for Future Grids, ETFG 2023
Y2 - 3 December 2023 through 6 December 2023
ER -