A low consumption DSP based power analyzer

The power analyzer is an instrument for measuring the voltage, current and other electric parameters of electrical equipments in power system. It also can be used to analyze harmonic and frequency spectrum of the voltage and current. This paper introduces a low consumption power analyzer based on low power consumption DSP, and explains the principle and design of tester in details. The data from the simulation experiment indicate that the high accuracy harmonic analysis algorithm of our system's software is able to meet the accuracy requirement of the power analyzer completely.