I have a problem of my simulink model. PLEASE HELP ME T.T

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Kyu Hong Lee
Kyu Hong Lee el 28 de Sept. de 2016
Respondida: JuanCa el 5 de Oct. de 2016
First im not good at English forgice me.
this is my model when i try an open loop system, it works but when i try closed loop system (feedback) , it doesnt work.
that is an error i cant undersand the error. as i think eq1 has too high degree. is that right? or other reason?
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Kyu Hong Lee
Kyu Hong Lee el 28 de Sept. de 2016
SORRY IT'S TOO SMALL. THIS IS AN ERROR
An error occurred while running the simulation and the simulation was terminated Caused by: Simulink cannot solve the algebraic loop containing 'ed713/Gain2' at time 1.0 using the TrustRegion-based algorithm due to one of the following reasons: the model is ill-defined i.e., the system equations do not have a solution; or the nonlinear equation solver failed to converge due to numerical issues. To rule out solver convergence as the cause of this error, either a) switch to LineSearch-based algorithm using set_param('ed713','AlgebraicLoopSolver','LineSearch') b) reducing the ode45 solver RelTol parameter so that the solver takes smaller time steps. If the error persists in spite of the above changes, then the model is likely ill-defined and requires modification. Component:Simulink | Category:Blockerror

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JuanCa
JuanCa el 5 de Oct. de 2016
In the signal that closes the loop you need to add a Unit Delay block or a Memory block

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