Wireless sensing of substation parameters for remote monitoring and analysis

(in lingua inglese)

The uniqueness of the proposed system is that a Zigbee enabled state-of-the-art microcontroller based ZPMU and ZIED are developed and tested in the laboratory with satisfactory results. Since Zigbee is itself a robust communication scheme, this WSN for substation monitoring is highly reliable. In the ZPMU, the phase angle is calculated from the voltage or current samples by comparing their zero crossing instants. The Sample Shifting Technique makes it possible to calculate active and reactive power from voltage and current samples only without calculating the power factor angle.