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FPGA-based reconfigurable unit for real-time power quality index estimation

Power quality monitoring is an important subject for investigation and research. In this work a generic FPGA-based portable architecture for real-time power quality index (PQI) estimation is proposed. Different from off-the-shelf specialized equipment, the proposed hardware implementation offers higher exactitude for PQI estimation and representation of voltage and current signals. Unlike previous approaches, the proposed FPGA-based PQI computation unit estimates up to fourteen PQI, it is highly portable to different platforms, and it can be implemented on a single chip.