Algerian Journal of Signals and Systems
Volume 1, Numéro 1, Pages 69-78
2016-06-30
Authors : Abdelmoumene Abdelkader . Bouderbala Rachid . Bentarzi Hamid .
The problem of mal operation of differential protection of power transformer due to the inrush magnetizing current has long considered as a challenging problem. Several types of protection relays have been used to solve the issue (basic relay, percentage relay, multi slop ….). Each of them has its advantage and its limits. In this paper, a Digital differential relay has been developed and simulated. The logic used to distinguish between the inrush current and the internal fault is based on the theory of harmonic analysis. The behavior of the presented relay has been simulated versus various situations (inrush current, internal fault and external fault). The obtained results show that the proposed algorithm provides a good discrimination and a fast action.
Algorithm, Differential, DSP, Digital, power transformer, harmonic analysis.
Mahamdi Yassine
.
Boubakeur Ahmed
.
Mekhaldi Abdelouahab
.
Benmahamed Youcef
.
pages 1-5.
Elong Ouissam
.
Senoussaoui Abderrahmane
.
pages 17-21.
Mati Ayache
.
Baadji Boussadia
.
Bentarzi Hamid
.
pages 121-128.
Saidi H.
.
Taleb R.
.
Mansour N.
.
Midoun A.
.
pages 321-331.
Makhloufi S.
.
Mekhaldi A.
.
Teguar M.
.
Saheb-koussa D.
.
Djoudi A.
.
pages 721-732.