whether matlab function block and trigger block can be linearized?

3 次查看（过去 30 天）
Li Yang
Li Yang 2016-2-16
评论： Connor Landrum 2019-4-23
Hi, I am modeling a motor control system. In my controller, I am using (1) matlab function block to do some calculations; and (2) triggered blocks to simulate the different updating speed of my outer and inner PI control loop. Now I want to use the PID tuner to find pi gains for my outer loop(has 1 PID controller) and the inner loop(has 2 PID controllers), but the PID tuner just can't launch. So I am wondering if a simulink model like mine can actually been linearized?
  1 个评论
Anish Mitra
Anish Mitra 2016-2-23
Is there a specific error message?
When I add switches in a model (in R2015b) and then try opening the PID Tuner - it does open and then show a message stating that the plant cannot be linearized. Do you see something similar?

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Arkadiy Turevskiy
Arkadiy Turevskiy 2016-2-24
Hi, Triggered subsystems are discontinuous and would typically not linearize.For cases when exact linearization does not work, the best approach is to compute linear model approximation using simulation data.
The workflow for this is shown in this video and explained in this doc example .
Hope this helps.
  1 个评论
Connor Landrum
Connor Landrum 2019-4-23
Hi Arkadiy,
You mention triggered subsystems, does that only include triggered blocks, or are matlab function blocks also triggered subsystems, and if so would similar methods work to compute a linear model approximation?
Thanks

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Schedule Model Components 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