Authors : Wisam Najm AL-Din Abed,, Omar A. Imran and and Ali N. Jbarah
Abstract: The significance of self-regulating power suppliers is based on providing a constant output voltage even under any source disturbance. Dc-dc converter with LC filter (buck converter) can provide constant output voltages when use a proper closed loop control system. In this research a mathematical model of buck converter is designed and simulated using MATLAB Simulink toolbox. Lead compensator is designed plus Pulse Width Modulation (PWM) for controlling the output voltages. A new metaheuristic optimization technique called Ant Colony Optimization (ACO) technique is proposed for tuning the parameters of lead compensator. ACO optimally choose compensator parameters, gain, poles and zeros locations. The buck converter are tested under variation in input voltages above and below its nominal value to show the robustness of the compensator based ACO technique. The ACO strategy have many advantages like, fast convergence, simple implementation, lower algorithm parameters are required as well as required lower consecution time. The results show that the proposed approach has superior feature, including easy implementation, stable convergence characteristics and very good computational performances efficiency, also improving the transient and steady state behavior of the system.
Wisam Najm AL-Din Abed,, Omar A. Imran and and Ali N. Jbarah, 2018. Voltage Control of Buck Converter-Based Ant Colony Optimization for Self-Regulating Power Supplies. Journal of Engineering and Applied Sciences, 13: 4463-4467.