Buck DC-DC converter design and experimental validation by time delay control

Abstract

This paper presents a novel control approach based on time delay concept for buck DC-DC converter control and implementation. Time delay control is effective and useful for the voltage tracking of the buck DC-DC converter that exhibits inherent state variable variations under disturbance. To prove the voltage tracking performance improvement of the proposed method, a conventional model predictive control (MPC) is used and compared. MATLAB/Simulink models are constructed to simulate the efficiency of the controllers by comparing the system performance criteria under different operating points. Finally, experimental validations are performed and compared on the same platforms and working conditions.