Micro PMU model

This model represents a µPMUs for distribution grid applications

µPMUs are a promising monitoring device for

monitoring and smarting the distribution grid by providing a

synchronized phasor measurement of bus voltages and branch

phasor currents besides sequence components, frequency, and

harmonics content. They are designed with high accuracy level

to withstand the distribution grid challenges. Understanding

µPMUs behavior and error sources under different operation

conditions are essential to address the desired quality standard.

This paper presents a MATLAB/SIMULINK µPMU model,

which addressed the analog filter, GPS uncertainty, and off

nominal operation errors and the elimination methods of these

errors. The proposed model is tested using a standard input

wave with unit step frequency change. Moreover, the model

performance is evaluated for unbalanced distribution grid

feeders with random load change. The model showed accurate

estimation of phasors magnitude, angles, sequence components,

frequency, and harmonics content.