Active disturbance rejection control for irrational transfer functions

In order to validate the good control effect of active disturbance rejection control (ADRC) on high-order systems, the effective control and performance robustness analysis of the approximation high-order models of irrational transfer functions are researched through the simulation of these models. The approximation high-order models of irrational transfer functions are given, then the second order linear ADRC is applied to these models. The simulation results show that the second-order linear ADRC plays good performance and robustness on irrational transfer functions.