Method for Monitoring the Quality and Quantity of Consumed Electrical Energy in Real Time

This article is part of a project related to implementing a “smart backup power supply.” It proposes a method for monitoring the quality and quantity of consumed energy at the input and output of a backup power supply based on the use of Fast Fourier Transform (FFT). It presents some of the principle diagrams of the hardware modules used to implement the method, as well as the block diagram of the microcontroller's control program. The data obtained from the system's operation are presented graphically. The data are analyzed in real time, and if certain parameters exceed permissible norms, alarms are sent to the system owner.