Busbar Differential Protection Using an Alternative Generalized Alpha Plane

Vásquez, Francis A. Moreno; Silva, Kleber M.

doi:10.1016/j.epsr.2021.107284

Cited by 3 publications

(7 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, the impact of CT saturation and normal operating switchings on the algorithm has been studied. In comparison with the published paper quoted: The proposed scheme is faster than those algorithms in [4], [13–14], [16–17], and [22]. Unlike directional busbar protection schemes in [10–11] and [18–19], which need to measure both voltage and current signals, the proposed scheme only requires to measure the current signal to make a decision. Unlike transient‐based schemes in [5] and [18–19] which suffer from overdamping of transients, this issue is not serious in the proposed algorithm.…”

Section: Introductionmentioning

confidence: 79%

“…In terms of fault detection time, the proposed algorithm is faster than those methods in [4], [13][14], [16][17], and [22], while it is slower than those algorithms in [5], [15], [18][19] and [21]. However, as mentioned in section 1 the transient-based methods in [5] and [18][19] suffer from overdamping of transients and the wavelet-based algorithms, for example, [15], are dependent on the applied mother wavelet, and have a high computational burden.…”

Section: Comparative Assessment Of the Proposed Schemementioning

confidence: 99%

“…In addition, machine learning‐based schemes are proposed by [16–17]. Also, a time domain‐based algorithm and an alternative generalized alpha plane algorithm are developed by [21–22], respectively. The comparison assessment is shown in Table 11.…”

Section: Comparative Assessment Of the Proposed Schemementioning

confidence: 99%

“…To overcome the aforementioned problems, extensive research has been done in the field of busbar protection. The outputs of previous research efforts are many valuable busbar protection schemes [3]- [22]. In the following, we have discussed them.…”

Section: Introductionmentioning

confidence: 99%

“…Although it is fast, its ability has not been evaluated under occurrence of simultaneous faults. V´asquez et al have assessed the application of the alternative generalized alpha plane to prepare a novel busbar protection scheme [22]. Their results show that the proposed scheme is superior to the generalized alpha planebased busbar protection scheme in [9].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

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

Joband

Homayounifar

Sarlak

2022

IET Generation Trans & Dist

View full text Add to dashboard Cite

Superimposed current components contain effective information, which can be employed to enhance the dependability and security of busbar protection relays. This study aims to investigate the use of the slope degree of grey incidence analysis model to design a methodology for busbar protection. A grey‐based busbar protection criterion has been established to inspect the similarities of the superimposed currents measured by nearby CTs inside busbar protection zone. It is concluded that fault is internal if all of the superimposed currents are similar, otherwise, fault is external. It is shown that in all of the simulated cases, the authors’ methodology can make reliable discrimination between internal and external faults. Moreover, the results demonstrated that the protection indexes of the proposed scheme including security, dependability, sensitivity, and selectivity, are satisfactory for different conditions including fault type, fault resistance (to 500 Ω), fault inception angle, simultaneous faults, evolving faults, faults during transformer energization, CT saturation and normal operating switchings and white noise. Besides, the improvements noted in our algorithm are achieved with a low computational burden and sampling rate. Also, the scheme can be implemented in digital relays. It means that the existing busbar protection scheme can be replaced by the proposed scheme.

show abstract