Design of faults detection synergetic observer

摘要

In this paper, a new strategy of state observation is established, this method is based on the synergetic theory to construct a synergetic observer. This theory is presented for the nonlinear system control at the first. Then, it is shown that the discrete-time synergetic controller satisfies the conditions of optimality. The concept of synergetic observer is introduced for a linear system. It is proved that the proposed observer can detect a multiple faults appearing simultaneously or sequentially. The fault detection synergetic observer generates two output residuals, one delayed in time compared to the other. The boost converter is used as example of nonlinear system to simulate the synergetic control. Also, The simulation results for a linear system are presented to validate effectiveness of proposed observer.