Abstract
Concurrently functioning relays using FPGA technology are the primary focus of the project. The suggested FPGA-based relays are much faster than microprocessor- or microcontroller-based relays because they use continuous sense-process communicate cycles. The Xilinx Virtex-II FPGA Board's implementation of overcurrent, impedance, reactance, and mho was evaluated using the 400 kv line transmission hardware simulator. Fault currents in power systems may contain a component of direct current (DC) that decays exponentially in the case of transient failures. Extracting the fundamental frequency element is essential for avoiding false tripping. To do this, we make use from the VHDL FFT IP core. A Fast Fourier Transform (FFT) filter is used to implement overcurrent, impedance, reactance, and mho dependence. The FFT filter is also used to evaluate the DC decaying portion.
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