清空筛选条件
清空筛选条件

Simulink Problem: Derivative input is Inf

12 次查看（过去 30 天）
Fan
Fan 2013-5-9
回答： Brahim MOUDOUD 2019-10-7
Hi,
I face a Simulink problem at the input of the integration block, which is:
Derivative input 1 of 'diode4_1_test/Integrator' at time 0.00050002112037682831 is Inf or NaN. Stopping simulation. 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)
However,the input of the integration block is not infinity according the scope. I also tried to put saturation block at the input, but the problem also exists.
Thank you!
  1 个评论
Jordan Monthei
Jordan Monthei 2013-5-9
It would be helpful to see what sort of system you are trying to run as well as what is seen on the scope to have a better understanding of your problem.

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Guy Rouleau
Guy Rouleau 2013-5-9
Use the Simulink debugger to identify where the Inf or NaN originates. There is a "NaN" breakpoint.

更多回答（1 个）

Brahim MOUDOUD
Brahim MOUDOUD 2019-10-7
Hi,
I had the same problem for the integrator
Derivative of state '1' in block '..../integrator' at time 4.4501477170144018E-309 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)
Thank you .

类别

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

标签

Community Treasure Hunt

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

Start Hunting!

Translated by