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Nonlinear State-Space simulation

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Estela Nieto
Estela Nieto on 23 May 2020
Commented: Estela Nieto on 25 May 2020
Hello everyone,
I have to simulate this nos linear sistem
where k0= 1x10^-4,x1, x2 and x3 are the states and u(t) is the control input.
Could you tell me plese how to simulate this system either using Matlab or Simulink?

Answers (1)

Gautam
Gautam on 24 May 2020
1) You can use ode45 for solving these equations in MATLAB (Refer the examples here to understand how to use ode45 for solving non-linear differential equations: )
2) For simulink implementation: Refer this blogpost https://blogs.mathworks.com/simulink/2008/05/23/how-to-draw-odes-in-simulink/ . Although this talks about a simple homogenous ODE, the example can be extended to solve your equations.
Goodluck!

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