Method and system for using phasor measurements in state estimation of power systems

A method for using phasor measurements in state estimation, comprising:

• (a) acquiring a plurality of positive sequence voltage and current phasor measurements from a plurality of phasor measurement units, and sending said phasor measurements to a computer;
• (b) designating a reference positive sequence voltage phasor measurement from said acquired phasor measurements;
• (c) said computer adjusting said acquired phasor measurements to account for said reference phasor measurement by subtracting a phase angle value from a pre-selected reference phasor measurement from each of said acquired phasor measurements;
• (d) calculating complex power having a real component and an imaginary component, using said corrected positive sequence voltage and current phasor measurement;
• (e) using said real component of said complex power as a calculated mega-watt and said imaginary component of said complex power as a calculated mega-volt-ampere;
• and
• (f) using said mega-watt and mega volt-ampere calculations in a state estimation algorithm.