MATLAB: Derivative of state ‘1’ in block ‘PID_AerotechA3200/Nonlinear Plant /PL’ at time 0.01 is not finite

MATLAB and Simulink Student Suitesingularity

Derivative of state '1' in block 'PID_AerotechA3200/Nonlinear Plant /PL' at time 0.01 is not finite. The simulation will be stopped. There may be a singularity in the solution. If not, try reducing the step size (either by reducing the fixed step size or by tightening the error tolerances)

can somebody help me ? what should i do ? thanksss

You can try changing the solver to Variable-step ode15s (stiff/NDF).

Or refer the following link to resolve the issue

Let's say the passband is between 200 and 3200 Hz and the stop band is 100 and 3300 Hz, you can use a Butterworth filter

Ws = [100 3300]/(Fs/2);
Wp = [200 3200]/(Fs/2);
[N,Wn] = buttord(Wp,Ws,0.1,30);
[b,a] = butter(N,Wn);
filter(b,a,y)

If you want more options to design your filter, try fdatool