Simplified adaptive backstepping control of buck DC:DC converter with unknown load

In this paper a backstepping control scheme is developed for the Buck DC:DC converter topology. This control scheme achieves the output voltage tracking objective operating under the constraint of an unknown load, along with an unknown constant disturbance. This work simplifies the control scheme by utilizing a novel controller with added terms to compensate for additional missing information. This solution is more easily implemented in real-time systems, with only a small decrease in system fidelity. Lyapunov stability analysis is utilized to demonstrated closed loop system stability while meeting the voltage-tracking control objective. Simulation and experimental results validate analytical formulation.