Optimal Relay Coordination Using Two Phase Simplex Method

Authors

  • Nilesh Bhatia Electrical Department, AIT
  • Yogesh Patel Electrical Department, AIT
  • Merolina Christie Electrical Department, AIT
  • Pushpa Bhatiya Electrical Department, VIE

Keywords:

Backup Protection, Constrained optimization, LPP, IDMT relay coordination, Two-phase simplex method

Abstract

The time of operation of Overcurrent (OC) relays can be reduced, and at the same time, coordination
can be maintained, by selecting optimum values of Time Multiplier Setting (TMS) of OC relays. This paper
presents two phase simplex method for optimal time coordination of Overcurrent (OC) relays. The method is
based on the simplex algorithm which is used to find optimum solution of Linear programming problem (LPP).
The technique introduces artificial variables to get Initial basic feasible solution (IBFS). Artificial variables are
removed using iterative technique of first phase which minimizes the auxiliary objective function. The second
phase minimizes the original objective function & gives the optimum time coordination of OC relays.

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Published

2016-02-25

How to Cite

Nilesh Bhatia, Yogesh Patel, Merolina Christie, & Pushpa Bhatiya. (2016). Optimal Relay Coordination Using Two Phase Simplex Method. International Journal of Advance Research in Engineering, Science & Technology, 3(2), 69–73. Retrieved from https://ijarest.org/index.php/ijarest/article/view/418

Issue

Vol. 3 No. 2 (2016): Volume: 03, Issue: 02 - February, 2016.

Section

Articles