Power Analyzer for Frequency Converter Testing Based on National Instruments Crio Platform

Measuring of input and output power of frequency converter in the same time s quite specific task. The input voltage frequency is the same but the output voltage frequency varies. Both input and output power has to be measured from the same time window in the same time. The integer multiply of signal cycles has to be processed. Optionally the mechanical power from analog or frequency signals from the torque and revolution sensors can be measured by this analyzer. The input current and output voltage contain many harmonic components and thus the sampling frequency has to be sufficiently high.