Convert a function into a matrix

I want (h(t)) to be in form of matrix, how to do it?
Parameters= {'R0','R1','C1','Qr','bo','b1','SOC','Vrc','Voc'};
R0=0.000605797;
Qr=147964.8608;
R1=0.000856205;
C1=0.049823238;
% X=[SOC;Vrc];
A=[0 0;0 -1/R1*C1];
B=[1/Qr;1/C1];
C=[1 1];
D= R0;
% u=Il;
sys= ss(A,B,C,D);
tfsys = tf(sys);
n = tfsys.Numerator;
d = tfsys.Denominator;
syms s t
H(s) = poly2sym(n,s) / poly2sym(d,s)
H = vpa(H, 5);
h(t) = ilaplace(H)
h = vpa(h, 5)
figure
fplot(h)
grid
axis([0 0.1 0 20])

Respuestas (1)

Chunru
Chunru el 24 de Jun. de 2022
Parameters= {'R0','R1','C1','Qr','bo','b1','SOC','Vrc','Voc'};
R0=0.000605797;
Qr=147964.8608;
R1=0.000856205;
C1=0.049823238;
% X=[SOC;Vrc];
A=[0 0;0 -1/R1*C1];
B=[1/Qr;1/C1];
C=[1 1];
D= R0;
% u=Il;
sys= ss(A,B,C,D);
tfsys = tf(sys);
n = tfsys.Numerator;
d = tfsys.Denominator;
syms s t
H(s) = poly2sym(n,s) / poly2sym(d,s)
H(s) = 
H = vpa(H, 5);
h(t) = ilaplace(H)
h(t) = 
% h = vpa(h, 5)
figure
fplot(h)
grid
axis([0 0.1 0 20])
t1=linspace(0, 0.1, 21)
t1 = 1×21
0 0.0050 0.0100 0.0150 0.0200 0.0250 0.0300 0.0350 0.0400 0.0450 0.0500 0.0550 0.0600 0.0650 0.0700 0.0750 0.0800 0.0850 0.0900 0.0950 0.1000
h1 = double(h(t1))
h1 = 1×21
Inf 15.0041 11.2163 8.3847 6.2680 4.6857 3.5028 2.6185 1.9575 1.4633 1.0939 0.8177 0.6113 0.4570 0.3416 0.2554 0.1909 0.1427 0.1067 0.0798 0.0596

7 comentarios

Hend Mostafa
Hend Mostafa el 24 de Jun. de 2022
Can I have the matrix of h(t) without substituting the value of t?
Chunru
Chunru el 24 de Jun. de 2022
Without substituting t, h(t) is a symbolic function rather than a matrix.
Hend Mostafa
Hend Mostafa el 24 de Jun. de 2022
I can't understand.. I can convert it into a matrix? because each term represent a term for me so I want it to be in a matrix form in order to see what are the terms
Hend Mostafa
Hend Mostafa el 24 de Jun. de 2022
how to convert this symbolic function into a matrix?
Chunru
Chunru el 24 de Jun. de 2022
Can you explain what you want to store in the matrix? What is tge tern you are referring to? Show some examples.
Hend Mostafa
Hend Mostafa el 24 de Jun. de 2022
The H(s) function in the code is supposed to be two terms, the state of charge (SOC) and voltage drop (Vrc), but I dont know which terms they are, so I want it to be converted in to a matrix 2x1 in order to identify which terms
Chunru
Chunru el 24 de Jun. de 2022
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R2019b

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el 24 de Jun. de 2022

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el 24 de Jun. de 2022

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