Create a matrix in Simulink
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The diagram below is the block diagram that I have created in order to generate the matrix B.
I want the matrix B to be in the size of [9x6] but what I have done in the simulink give me a warning message as: 'Magnetic/B' generated a [9x6] matrix data. It automatically reshaped the data to a one dimensional vector with 54 elements.
My question is: How to make the matrix B stay in the size of [9x6]?
I have attached the simulink model in the file as well. I am really appreciate your help.
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Ameer Hamza
2020-4-28
编辑：Ameer Hamza
2020-4-30
0 个投票
Because in the function Interpreted MATLAB function block B, you have set the output dimension to 54. Change it to [9 6].
6 个评论
Linee Teh
2020-4-30
Ameer Hamza
2020-4-30
I am glad to be of help.
Linee Teh
2020-5-2
Hey Ameer, I have another question.
If my control law is u = -kx and substitute the control law into the state space equation x_dot = Ax + Bu, it give me x_dot = (A-BK)x and the first figure below shows the configuration.
Then, I added the disturbance into the system but it shouldn't look like this as shown in the figure below. Input matrix B and Gain K should be multiply with each other and the disturbance is added on. How can I modified the simulink block to get what I want?
Thank you..
Ameer Hamza
2020-5-2
"I added the disturbance into the system" is an ambiguous term. Where are you adding the disturbance? In the state-vector? In the control input? In the output vector? All of these are possible. Can you show the equation of your system with the disturbance added to it?
Linee Teh
2020-5-2
Ameer Hamza
2020-5-2
do it like this
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