Responce From Estimated SysID Modell in Simulink isn't the same as shown in matlab compare() function

2 次查看（过去 30 天）
Iaroslav Gryshchuk
Iaroslav Gryshchuk 2023-3-23
编辑： Iaroslav Gryshchuk 2023-3-31
I have recorded requested motor torque data and current position data.
Split them. From the first half of the data created iddata object EstimationData. From the second half ValidationData. Then run:
processModel=procest(EstimationData,'P3DZU');
then run:
compare(ValidationData,processModel);
shows following response with very good fit of 99,54 %.
Then following Sinulink structure is build:
Scope shows following picture:
So my question is, why doesn't the signals match ob Scope how they match in the figure after calling compare function()?

请先登录，再回答此问题。

回答（1 个）

Nikhilesh
Nikhilesh 2023-3-31
Hi Iaroslav,
The possible reason might be the simulation parameters, also try adjusting initial conditions of simulink model to match that of validation data.
  1 个评论
Iaroslav Gryshchuk
Iaroslav Gryshchuk 2023-3-31
编辑：Iaroslav Gryshchuk 2023-3-31
Hi, how do I adjust intitial conditions of simulink model to match that of validation data?
This is my validation data:
Which simulation parameter can help me? Here is th same scope output with simulation stopped at 50 seconds:
Here are my Configuration Parameters:

请先登录，再进行评论。

类别

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

标签

产品


版本

R2022a

Community Treasure Hunt

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

Start Hunting!

Translated by