Implementation and comparison of power definitions using a DSP based prototyping system

This work presents and compares the outcome of the two most elaborated power definitions in the frequency domain. For this study the electrical power quantities proposed in the new IEEE Standard 1459-2000 and developed by L. Czarnecki are considered. These definitions are implemented and applied to some case studies in real life measurements. The general structure of the in-house DSP/FPGA based system used for the prototyping of the measurement device and the software environment used to support power measuring algorithms performed on a low voltage distribution grid are discussed. Finally, a THD decomposition depending on the distortion origin will be presented.