Active Disturbance Rejection Control of Interleaved Boost Converters with Model Compensation

In this paper, an active disturbance rejection control (ADRC) with model compensation is proposed for an interleaved boost converter to enhance the voltage control performance. Firstly, a model compensation method is developed to calculate the model parameters through the inductor current and duty ratios. The total disturbance is estimated by the extended state observer (ESO) and compensated in the control law. The proposed method is characterised by its comprehensive utilisation of the information derived from the established model. This attribute engenders an augmentation in the robustness of the method, in conjunction with a reduction in the estimation burden when contrasted with the conventional ADRC method. Moreover, stability analysis is conducted to evaluate the impact of model compensation terms on the voltage control performance. It is evident from the comprehensive experimental findings that the efficacy of the proposed ADRC method has been substantiated.