Amelioration of Traditional PI Boost Converter Utilizing Linear Active Disturbance Rejection Controller - Mode Predictive Control Strategy

For a typical Boost converter, the entire control loop must be designed with a compensator to improve the circuit's dynamic and static performance. To solve the problems of conventional loop PI control of the boost converter including input current distortion, fast dynamic response, and high power. An optimization Linear Active Disturbance Rejection Controller (LADRC) algorithm is proposed, created on predictive voltage inner loop control. The algorithm solved the problems of slow dynamic response and waveform distortion of loop PI control. By simulation in MATLAB, the response curve demonstrates that, in addition to overshooting during the boosting procedure, the Boost converter with LADRC-MPC has a modification time of 22ms as opposed to 80ms with PI-MPC. While utilizing the LADRC-MPC control technique, the current time for modification is 12ms, and while using PI-MPC, it is 27ms. The simulation results indicate that the mechanism scheme created on LADRC-MPC exhibits good stability and rapidity, as well as high robustness.