Design and implementation of Active Disturbance Rejection Control (ADRC) for DC/DC Converter

Abstract

This work investigates the control of DC/DC converters using Active Disturbance Rejection Control (ADRC). Both Buck and Boost converters are studied under two strategies: cascade ADRC and error-based ADRC. Simulation results in MATLAB/Simulink demonstrate the controllers' ability to reject disturbances, track references, and maintain stability under input voltage and load variations. Cascade ADRC showed strong robustness and fast response, while error-based ADRC offered simpler structure and smooth control signals. The Buck converter was further tested experimentally using a dSPACE 1104 platform. Real-time results confirmed the effectiveness of ADRC in practical scenarios, highlighting its suitability for power electronics applications.