A new time domain-based busbar protection algorithm

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

“…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. In the case of the method in [21], it is worth mentioning that with a sampling rate of 1.92 kHz which is close to that sampling rate in this paper, that is, 2 kHz, an internal fault is detected after 2.22 ms.…”

“…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.…”

“…Besides, the suitability of many schemes in indexes of different domains including security, dependability, speed, sensitivity, selectivity, and implementation have been documented. In terms of the different mentioned domains, we assessed our algorithm in comparison with twelve published methods in [4–5], [12–19], and [21–22]. The methods proposed by [4, 13] are based on superimposed current and instantaneous power, respectively.…”

“…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.…”

“…More recently, V´asquez et al. have presented a novel time‐domain scheme to protect busbars [21]. The scheme is based on current samples and their half‐cycle incremental quantities.…”