Laboratory prototype of a phasor measurement unit using FPGA based controller

Synchronized Phasor measurement units (PMUs) are of prime necessity in the Smart Electric Grid Architecture. Knowledge on voltage and current Phasor helps in power system state estimation, monitoring and control. This paper deals with the development of a laboratory prototype of PMU. Synchrophasor estimation algorithms are modelled using LabVIEW. The model is burned into FPGA based controller to achieve an online Phasor measurement system. The developed prototype is used against a dynamic transmission system model consisting of single phase voltage source connected to a load by a transmission line. The paper also studies the effect of the line impedance on the Phasor estimates. Finally, the accuracy of the Phasor estimate from the developed model is verified.

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