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How to make state-space model for an array input in Simulink?

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And Meng
And Meng on 4 Apr 2021
Answered: And Meng on 5 Apr 2021
I have a simple state-space function that is suitable for input data size of 1 (u1), as indicated in Fig.1. If my input is in form of an array (u1, u2, ... uN) I could use demux and more number of state-space blocks to acheive the same idea, as indicated in Fig.2. However, with known the size of input, how can I implement the same state-space to the input array without manually adjusting the number of state-space blocks? Matrix ABCD should be the same.
Fig 1: SISO
Fig 2: Array input manual adjust

Answers (2)

Fangjun Jiang
Fangjun Jiang on 5 Apr 2021
You should not duplicate the State Space block. The size of A, B, C and D should all match properly to the number of states X, the number of input U and the number of output Y.

And Meng
And Meng on 5 Apr 2021
I think I found a way. Just simply consider them as systems in parallel and make larger ABCD martix with zeros.




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