Problem in Model predictive controller for DC-DC converter Plant model cannot be a pure direct feed-through system without additional dynamics

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kuldeep kumar
kuldeep kumar 2021-1-21
评论： brain dr 2022-2-7
Hi
I am designing a model predictive controller for the DC-DC converter. I have developed a DC-DC converter in the matlab simulink. I have connected approprietly MPC controller with DC-DC converter. However, when I am designing the MPC controller in MPC desginer and using define and linearize the plant model, i am receving an error "Plant model cannot be a pure direct feed-through system without additional dynamics"
I am attaching the snapshot of my simulation and error.
I am not able to identifiy the mistake.

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回答（3 个）

brain dr
brain dr 2021-2-16
Hello, i have the same problem, did you solve it?
Leonardo Costa
Leonardo Costa 2021-5-11
Hi I had the same issue. I solved specifying the proper MV and MO signals. Honestly I cannot understand if you choosed the correct signal, but I suggest to try all the signals and hope it works.
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brain dr
brain dr 2022-2-7
Hi guys, you can't use the MPC tool for a model with real elements, like an inductor, resistance, MOSFET..etc, in this case, you should build MPC as a function block (m-file ) including the state-space model and function model, the output signal of this block is generated according to all probabilities of (on/off) switches in the circuit (Mosfet).

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Ashish Choubey
Ashish Choubey 2021-6-1
hi kuldeep
have you solved the problem of MPC implementation on boost converter? I am also facing the same problem
  2 个评论
brain dr
brain dr 2022-2-7
Hi guys, you can't use the MPC tool for a model with real elements, like an inductor, resistance, MOSFET..etc, in this case, you should build MPC as a function block (m-file ) including the state-space model and function model, the output signal of this block is generated according to all probabilities of (on/off) switches in the circuit (Mosfet).

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