Optimal coordination of directional overcurrent relays considering dynamic changes in the network topology

This paper presents a method to consider the dynamic changes in the network's topology for the coordination of directional overcurrent relays using linear programming. The proper coordination constraints are included by using linear approximations for the relay dynamics. The application of the methodology as well as the importance of considering the transient configuration changes are illustrated with a practical example and a test case consisting of a real industrial power system.

[1]  J. Postforoosh,et al.  Computer Aided Transmission Protection System Design Part I: Alcorithms , 1984, IEEE Transactions on Power Apparatus and Systems.

[2]  R. Ramaswami,et al.  Integrated coordination and short circuit analysis for system protection , 1992 .

[3]  A.J. Urdaneta,et al.  Consideration of the transient configurations in the optimal coordination problem of directional overcurrent relays , 1995, Proceedings of First International Caracas Conference on Devices, Circuits and Systems.

[4]  H. Y. Tsien,et al.  An Automatic Digital Computer Program for Setting Transmission Line Directional Overcurrent Relays , 1964 .

[5]  Pradipta Kishore Dash,et al.  An application of functional dependencies to the topological analysis of protection schemes , 1992 .

[6]  A. J. Urdaneta,et al.  Coordination of directional overcurrent relay timing using linear programming , 1996 .

[7]  A. J. Urdaneta,et al.  Optimal coordination of directional overcurrent relays in interconnected power systems , 1988 .

[8]  S. S. Venkata,et al.  C.A.E. Software for Transmission Protection System: Puget Power Experience , 1987, IEEE Power Engineering Review.

[9]  C. L. Wagner,et al.  Digital Computer Protective Device Co-ordination Program I-General Program Description , 1964 .

[10]  D. Lidgate,et al.  Computer prediction of IDMT relay settings and performance for interconnected power systems , 1983 .

[11]  M. S. Sachdev,et al.  An on-line relay coordination algorithm for adaptive protection using linear programming technique , 1996 .

[12]  M. E. Arthur,et al.  Useful Life of Vacuum Interrupters , 1978, IEEE Transactions on Power Apparatus and Systems.

[13]  S. S. Venkata,et al.  Enhanced Algorithms for Transmission Protective Relay Coordination , 1986 .