| dc.creator | Leal, Mônica Maria | |
| dc.creator | Costa, Flávio Bezerra | |
| dc.creator | Campos, João Tiago Loureiro Sousa | |
| dc.date | 2020-08-12T19:44:21Z | |
| dc.date | 2020-08-12T19:44:21Z | |
| dc.date | 2018-08-09 | |
| dc.identifier | LEAL, Mônica Maria; COSTA, Flavio Bezerra; CAMPOS, João Tiago Loureiro Sousa. Improved traditional directional protection by using the stationary wavelet transform. International Journal of Electrical Power & Energy Systems, [s.l.], v. 105, p. 59-69, fev. 2019. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0142061518306422?via%3Dihub. Acesso em: 10 ago. 2020. http://dx.doi.org/10.1016/j.ijepes.2018.08.005. | |
| dc.identifier | 0142-0615 | |
| dc.identifier | https://repositorio.ufrn.br/jspui/handle/123456789/29805 | |
| dc.identifier | 10.1016/j.ijepes.2018.08.005 | |
| dc.description | This paper proposes a directional protection with phase, positive sequence, negative sequence, and zero sequence units by using the scaling coefficients of the real-time stationary wavelet transform (RT-SWT). As directional protection activators, the wavelet coefficients are used for fast detection of the fault inception time,
whereas the scaling coefficients are used to provide backup activators in accordance with the overcurrent
protection. Evaluations prove the feasibility to rebuild the traditional directional protection by using RT-SWT.
However, the proposed wavelet-based directional protection provided better performance and faster operating
time than the conventional one based on the discrete Fourier transform (DFT). As new functionalities, the
wavelet-based negative sequence unit can be used to detect three-phase faults, even with severe voltage sags without memory strategies, which is not possible with the conventional protection. In addition, the proposed protection was implemented in hardware in order to demonstrate its practical feasibility | |
| dc.language | en | |
| dc.publisher | Elsevier | |
| dc.subject | Directional protection | |
| dc.subject | Wavelet transform | |
| dc.subject | Torque factor | |
| dc.title | Improved traditional directional protection by using the stationary wavelet transform | |
| dc.type | article | |
