Hybrid Fixed and Floating-point Approach for Implementing PID Controllers on Zynq-7000 FPGA

PID controllers are crucial for regulating various process variables such as temperature, flow, pressure, and speed in industrial control systems. Therefore, this paper aims to design and implement the real-time FPGA-based PI/PID controller, which is complex regarding memory issues, accuracy, resource utilization, and energy consumption. Thus, this research uses Matlab's hybridized fixed- and floating-point approach to design the module Xilinx Vivado. The proposed design is realized on a Zynq-7000 FPGA board, and the results of the PI/PID controller implemented on the FPGA Zynq-7000 board model are stimulated. System generator tools are used to generate the hardware description language code. The Xilinx Vivado tool checks the module's device utilization, timing analysis, and power consumption. The performance is improved in terms of dynamic range, speed, unlimited use of resources, efficiency, and less energy consumption.