| Abstract |
A new type of nonlinear PID control method--autodisturbance
rejection control (ADRC) applied in DC-DC
converter is proposed in this paper. The control theory and the
structure of ADRC are presented, the simulation and
experimental results of its control effects when applied to Buck-
Boost DC-DC converter are also given. By precise MATLAB
simulations and experiment with the parameters perturbation of
Buck-Boost model and the extraneous disturbance, it proves that
ADRC controller can result in good effects such as strong
robustness, stability and adaptability when applied to the DC-DC
converters. ADRC not only overcomes the disadvantages of the
conventional PID, but also remains its advantages of the simple
structure and strong robustness. It is demonstrated that ADRC
is an effective control method and it has a promising future in
the control for nonlinear system and unstable plant. |
