Fault diagnosis method of nonlinear network control system
A network control system and fault diagnosis technology, applied in the field of computer network, can solve the problem of low robustness of packet loss of fault sensitivity data, and achieve the effect of improving fault sensitivity and strong robustness
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[0044] Example 1, as attached figure 2 with 3 As shown, a fault diagnosis method for a nonlinear network control system is characterized by including the following steps:
[0045] Step 1: Set the discrete model of the nonlinear network control system, which can reflect the state delay of the nonlinear network control system and the uncertainty of the discrete model itself;
[0046] Step 2: For the discrete model in step 1, a robust fault detection filter for detecting nonlinear network control systems with data packet loss is obtained;
[0047] Step 3: According to the discrete model in step 1, set the augmented vector, combine the augmented vector and the discrete model to obtain the residual dynamic system, and use the Lyapunov stability theory to generate the residual dynamic system;
[0048] Step 4: Obtain the gain matrix L and the residual weight matrix R of the robust fault detection filter according to the condition of the mean square stability of the residual dynamic ...
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