Design and simulation of micro-phasor measurement units

Abstract

Synchrophasor technology has made it possible to continually check on the condition of power system networks in the Wide Area Measurement System (WAMS) and more recently in the distribution section (which needs more phasor measurement units accuracy and precision). The phasor measurement unit can be used either as a standalone device for simple measurements or as multiple ones that are spread out geographically (small and wide area) and play a signifi cant role in measerement(Wide Area Measerement System) , control (Wide Area Suppelemntary Conrol) and protection (Wide Area Protection) of the power system networks in real time as well as providing time-stamped measurements of voltage and current phasors in just microseconds. to keep the healthy and fault-free power system network in place. Phasor measurement units may employ the Discrete Fourier Transform (DFT) some in classical pmu(P-class) which may be improved to satisfy the requirements accuracy in the IEEE.standard c37-118to estimate the phasor. In this project, the sampling rate and quantization resolution effect have been included in our measurement algorithm. These parameters have been increased and simulated, and the obtained results show improvements in the requested accuracy.