A combined anti-disturbance strategy of DC-DC converter

In this paper, a combined control strategy based on Model Predictive Control(MPC) and Extended State Observer(ESO) is proposed to solve the output fluctuation problem caused by the variation of load resistance and input voltage. The optimal control strategy means that Model Predictive Controller is used as the main controller. The Extended state observer is used to observe the disturbance from a variety of uncertainties caused by internal and external interference, and compensation this disturbance. Computer simulation results show that the proposed control method has good performance of tracking voltage, and the disturbance caused by modeling error and load variation can be suppressed.