Linear programming method to find the minimal placements of phasor measuring units for power system state estimation

This paper aims at finding a minimal placement technique for placing Phasor measuring units for reducing the cost of state estimate. The method used in this technique is binary integer linear programming. The results shows that the method adopted can be effectively used in practical. This paper suggests the use of phasor measurement units for improving power system state estimation and observebility. Objective of this paper is to get solution for minimal placements of Phasor Measuring Units for complete power system state estimation and observability by using binary integer linear programming technique. This method is tested with several test systems like IEEE-14 bus, IEEE-30 bus IEEE-39 bus, IEEE-57 bus and the results have been verified for complete system observability.