Fault-tolerant control method based on hidden Markov model
A fault-tolerant control and model technology, applied in the direction of adaptive control, general control system, control/regulation system, etc., can solve the problems of structural accuracy, low reliability, poor effect of model predictive control, etc.
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[0063] In this embodiment, a fault-tolerant control method based on a hidden Markov model comprises the following steps:
[0064] S1. Offline modeling, collecting training sample sets, using the offline data collected in the industrial process as the observation sequence of the hidden Markov model, and training the hidden Markov model; the specific process includes:
[0065] S11. Use a stochastic nonlinear system to describe the industrial process, and the stochastic nonlinear system is expressed by the following formula:
[0066]
[0067] Where t is the time index, and the superscript [i] represents the working condition index, Indicates the state of working condition i, n x is the number of state variables, Indicates control input, n u is the number of input variables, Indicates time-invariant model parameters, n θ is the number of model parameters, Indicates that with known finite covariance ∑ ω The zero-mean process noise of f [i] : Represents the model eq...
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