Development of an on-line self-tuning FPGA-PID-PWM control algorithm design for DC-DC buck converter in mobile applications

Abstract EN

This paper presents a new development of an on-line hybrid self-tuning control algorithm of the Field Programmable Gate Array - Proportional Integral Derivative - Pulse Width Modulation (FPGA-PID-PWM) controller for DC-DC buck converter which is used in battery operation of mobile applications.

The main goal in this work is to propose structure of the hybrid Bees-PSO tuning control algorithm which has a capability of quickly and precisely searching in the global regions in order to obtain optimal gain parameters for the proposed controller to generate the best voltage control action to achieve the desired performance of the Buck converter output.

Matlab simulation results and Xilinx development tool Integrated Software Environment (ISE) experimental work show the robustness and effectiveness of the proposed on-line hybrid Bees-PSO tuning control algorithm in terms of obtaining smooth and unsaturated state voltage control action and minimizing the tracking voltage error of the Buck converter output.

Moreover, the fitness evaluation number is reduced.