Research on Voltage Fluctuation Calibration Method Based on Hilbert Transformation

This paper describes a research on voltage fluctuation calibration in the field of power quality measurement. By comparing the existing detection methods and analyzing the mathematical model, a calibration method of voltage fluctuation signal based on Hilbert Transformation is proposed and a calibration system is also established. The experiments indicates that the voltage fluctuation can be calibrated by the system accurately which is covering frequency range 0.008 Hz to 40 Hz, and fluctuation range of 0.1% to 30%.