FPGA-based power monitoring System for power converters

Abstract

This study investigates the development and implementation of a power monitoring system for power converters using the DE0-Soc Nano board. The first section details the design of an Analog-to-Digital Converter (ADC) with an SPI protocol to capture two channels—one for current and one for voltage—providing a foundation for accurate signal acquisition. The second section focuses on processing these channels through Fast Fourier Transform (FFT) blocks to convert the signals from the time domain to the frequency domain. This transformation allows for precise measurement of the current and voltage magnitudes, which are crucial for harmonic analysis. The third section explores the application of the CORDIC algorithm to determine phase measurements, enabling a deeper analysis of the power system's dynamics. Finally, the last section discusses the transmission of magnitude and phase harmonic data via UART to an embedded processor, which is then displayed on a graphical user interface (GUI). This project demonstrates the effectiveness of using FPGA-based solutions for realtime power monitoring and harmonic analysis in power converter systems.