Instantaneous-power-based busbar numerical differential protection

FAM Vásquez, KM Silva - IEEE Transactions on Power Delivery, 2019 - ieeexplore.ieee.org
This paper presents a new method for busbar differential protection based on the
instantaneous power concept. In order to do so, the instantaneous power per phase of each …

Enhanced generalized alpha plane for numerical differential protection applications

RG Bainy, KM Silva - IEEE transactions on power delivery, 2020 - ieeexplore.ieee.org
This paper revisits the generalized alpha plane (GAP) formulation applied to differential
protection of multi-terminal apparatus. The GAP formulation is improved by aiming for three …

Complex plane based adaptive method for protection of series compensated transmission line using phasor measurement unit data

K Nagarjuna, BR Bhalja, P Agarwal… - Electric Power Systems …, 2024 - Elsevier
Though differential relays are preferred for the protection of series-compensated
transmission line (SCTL), they may mal-operate during current inversion, high resistance …

A new principle for initial traveling wave active power differential busbar protection

H Wu, X Dong, Q Wang - IEEE Access, 2019 - ieeexplore.ieee.org
To avoid the impact of the transient saturation of a current transformer, a fast busbar
protection method based on the initial traveling wave integrated active power differential …

A Lissajous Curve–Based Method for Busbar Protection

M Sarlak - International Transactions on Electrical Energy …, 2024 - Wiley Online Library
In this paper, a novel time‐domain method based on the orientation analysis of the
superimposed current component Lissajous curves is presented for busbar protection. The …

A superimposed current based busbar protection scheme using slope degree of grey incidence analysis model

M Joband, S Homayounifar… - IET Generation …, 2023 - Wiley Online Library
Superimposed current components contain effective information, which can be employed to
enhance the dependability and security of busbar protection relays. This study aims to …

Innovative Cos–Sin characteristics to select the faulted zone in view of CT saturation

D Mourad - Electric Power Systems Research, 2019 - Elsevier
One area of the major concern of busbar differential schemes is misoperation due to current
transformer saturation through close-in out-of-zone faults. A comprehensive fault …

Busbar differential protection using an alternative generalized alpha plane

FAM Vásquez, KM Silva - Electric Power Systems Research, 2021 - Elsevier
This paper describes an alternative busbar differential protection function based on the
generalized alpha plane. This approach faithfully maps several currents in two equivalent …

A new time domain-based busbar protection algorithm

FAM Vásquez, EP Ribeiro, KM Silva… - Electric Power Systems …, 2021 - Elsevier
This paper presents a new time domain busbar protection algorithm which uses current
samples and their half-cycle incremental quantities to implement a fast and reliable tripping …

Algorithm to prevent breaker-failure protection maloperation due to subsidence current

S Jena, BR Bhalja, OP Malik - IEEE Transactions on Industry …, 2021 - ieeexplore.ieee.org
Duplication of circuit breakers (CBs) in substations is not realistic due to economic and
operational constraints. In the event of failure of a CB, adjacent breakers need to be called in …