Power energy metering based on random signal processing (EC-RPS)

The monitoring of electrical energy consumption achieves better performances using static counters. However, high quality systems using DSP provide very accurate measurements, but with a high cost. On the other hand, cheap devices are not very accurate. In this paper we propose the use of stochastic signal processing to implement static energy counters. The simplicity of the digital circuits utilizing this technique allows for the calculation of electrical measurements. We propose digital circuits for computing the active and reactive energy consumption and power factor for monophase and poly-phase systems. The results of an active power meter implemented using an FPGA device are compared to the ones obtained using a commercial analyzer