An error occurred while running the simulation and the simulation was terminated

828 次查看（过去 30 天）
Selahattin Öztürk
评论： Alamdar 2024-3-3
Trouble solving algebraic equations in differential-algebraic system. Singular iteration matrix encountered with step size 3.3730961873744423E-9 at time 0.0. Consider providing more accurate initial conditions. If the problem persists, check the model structure and values of parameters.
what should I do ?
  1 个评论
awatef chouat
awatef chouat 2020-9-25
Algebraic state in algebraic loop containing 'Systeme_PV_connecte/Champ PV 2/Diode/Product2' computed at time 0.015000000000000001 is Inf or NaN. There may be a singularity in the solution. If the model is correct, try reducing the step size (either by reducing the fixed step size or by tightening the error tolerances).
Please what should i do?

请先登录，再进行评论。

请先登录，再回答此问题。

回答（5 个）

Steve Miller
Steve Miller 2018-2-1
There are many modeling mistakes or poor parameter settings that can lead to this error diagnostic. It would be necessary to see the model to find the exact answer.
Things you can try:
1. MOST IMPORTANT: Carefully check the rest of the diagnostics to see if any other warnings highlight other problems with the model. For example, does it indicate there are algebraic loops?
2. Make sure your solver is set to "Variable Step", "Auto", and check the tolerance settings.
3. Open the Simscape Variable Viewer and see if any initial conditions aren't being satisfied. For more information, read the documentation for the Simscape Variable Viewer
There are many other possible causes for this error, but this should give you a place to begin.
--Steve
  4 个评论
显示 2更早的评论
Steve Miller
Steve Miller 2021-11-8
The diagnostic states there is an algebraic loop. You need to break this algebraic loop. Use the algebraic loop highlight tool to figure out which loop you need to break with a transfer function or a unit delay.
--Steve
Alamdar
Alamdar 2024-3-3
I have everything possible that you mentioned here, the simulation was running nice and earlier but now all of a sudden it shows this and after trying everything I know, it still persists. What should I do?
An error occurred while running the simulation and the simulation was terminated
Caused by:
Derivative of state '1' in block 'PV_and_batery_MPPT_ANFIS_PSC1/PV Array1/Diode Rsh/Transfer Fcn' at time 0.060841702204041406 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)

请先登录，再进行评论。

John
John 2021-11-8
metoo
nado adjr
nado adjr 2022-1-23
An error occurred while running the simulation and the simulation was terminated
Caused by:
  • The expression: (1/(9*10^(-6)+0.1*u(4)))*(u(2)*u(4)*u(3)*0.1+0.98*u(3)*cos(u(1))) in 'HANANEE/Fcn2' has a subscript t
  • hat is out of range
can someone help me to find the error
Stiven
Stiven 2023-6-30
Error:An error occurred while running the simulation and the simulation was terminated
Caused by:
Derivative of state 'circuito1.Capacitor4.vc' in block 'circuito1/Capacitor4' at time 0.083466307514932031 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)
Mathewos
Mathewos 2023-10-19
An error occurred while running the simulation and the simulation was terminated
Caused by:
  • Algebraic state in algebraic loop containing 'newLMS/Subsystem/Product' computed at time 0.0 is Inf or NaN. There may be a singularity in the solution. If the model is correct, try reducing the step size (either by reducing the fixed step size or by tightening the error tolerances)

类别

在 Help Center 和 File Exchange 中查找有关 Troubleshooting 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by