Medição digital aplicada a estabilizadores e condicionadores CA

This paper deals with the digital measurement of the true RMS value for use in controlling of AC voltage regulators and in controlling of line conditioners. The algorithms used to calculate the RMS value are presented, as well as the factors that influence the determination of this value. Some aspects are analyzed, as the definition of the true RMS value, the determination of the sampling rate of the signals and the effect of voltage harmonics. Experimental results show the functionality of the hardware implemented where the programs developed are tested to verify the accuracy and calculation time of measurements.