Can we change the Constraints in MPC ?

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Kripanshu
Kripanshu 2024-7-2
评论： Sam Chak 2024-7-3
Hello,
I'm using the Online feature of mpc block .i.e varying the MV constraints with simulation time.
Is it posible to change the inequality of the constraints in mpc block in matlab/simulink?
For example:
If ECR values (V) is 0 and scale factor is 1, then
default constraint is : u_min <= u <= u_max
and I would like to change to : u_min < u < u_max

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回答（1 个）

Sam Chak
Sam Chak 2024-7-2
Ran in:
Hi @Kripanshu
If you wish to define the bounds on the manipulated variable, u, such that , can you accept the following workaround?
umin = -1; % lower bound
umax = 1; % upper bound
delta = 0.0001; % user-defined, ideally should be eps(1) for double precision
MV = struct(Min = umin+delta, Max = umax-delta)
MV = struct with fields:
Min: -0.9999 Max: 0.9999
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Kripanshu
Kripanshu 2024-7-2
Hi @Torsten,
Thanks for your answer.
I understood the problem with this example
Sam Chak
Sam Chak 2024-7-3
Hi @Kripanshu
I'm not familiar with the specifics of your MPC implementation. When you mentioned performing iterations on the delta to get an optimum value according to the system model and adding other blocks like switches to make it work, this sounds more like an optimization problem rather than a generic MPC problem.

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