Rapid model prediction control method for air separation unit based on FPAA simulation neural network
A model predictive control, air separation plant technology, applied in adaptive control, general control system, control/regulation system, etc., can solve the problems of analog circuit parameters that cannot be updated online and low real-time performance
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[0113] Such as figure 1 As shown, the present invention uses SDNN to solve the QP problem of MPC control to control the product purity of the air separation unit. The fast MPC control method based on FPAA simulation neural network is implemented as follows:
[0114] (1) Offline calculation and simulation circuit QP solver construction
[0115] Given MPC parameters: prediction time domain P; control time domain M; controlled variable weighted matrix Q y ; Control increment weighting matrix Q Δu . According to the model of the controlled process, the number of MPC control variables is n u , The number of controlled variables n y , The number of state variables n x Wait for the parameters to initialize. Consider here the controlled process described by the state space model, namely:
[0116]
[0117] among them, Is the controlled variable, Is the control variable, Is a state variable. In practical applications, it is often necessary to control the increment, so in order to obtain ...
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