Réponse apportée
In PID tuning using control system tuner why am i getting waveform like this? Why there is no S and T and why in speed response plot its showing zero in actual?
Control System Tuner works by linearizing a Simulink model and then trying to design a controller for the linearized model. You ...

plus de 10 ans il y a | 0

| A accepté

Réponse apportée
how to get the control signal from the pid controller?
sys=C/(1+C*TF); step(sys)

plus de 10 ans il y a | 0

| A accepté

Réponse apportée
I have DC motor I went apply PID Position Controller for 45 angle
http://ctms.engin.umich.edu/CTMS/index.php?example=MotorSpeed&section=SystemModeling

plus de 10 ans il y a | 0

Réponse apportée
Blocks not recognized when linearizing in Simulink
The blocks that are not highlighted are not on linearization path. All it means is that graphically the input linearization poin...

plus de 10 ans il y a | 1

| A accepté

Réponse apportée
MIMO ltiblock.pid
This is a bug in the documentation. ltiblock.pid is for representing SISO PIDs only. The bug will be fixed in the future release...

plus de 10 ans il y a | 0

Réponse apportée
whether matlab function block and trigger block can be linearized?
Hi, Triggered subsystems are discontinuous and would typically not linearize.For cases when exact linearization does not work, ...

plus de 10 ans il y a | 1

| A accepté

Réponse apportée
on which method pidtool command selects parameters of PID?
Please see <http://www.mathworks.com/matlabcentral/answers/64274-how-does-the-simulink-pid-autotuner-work here>

plus de 10 ans il y a | 0

Réponse apportée
Why the build-in step function and the user defined m-file generate different results
The difference is due to how the derivative term is handled in the simulation. When you use ode45 (the first approach in the que...

plus de 10 ans il y a | 1

Réponse apportée
design optimization Simulink model parameter estimation to fit measured curvedata
Please start by taking a look at <http://www.mathworks.com/videos/estimating-dc-motor-parameters-97057.html the video> and readi...

plus de 10 ans il y a | 1

Réponse apportée
Updates of Matlab toolboxes based on latest Academic Research findings (Sys Id Toolbox)
Hi, As pointed out in the previous answer, each release we publish information about new features added to each of our products...

plus de 10 ans il y a | 0

Réponse apportée
How to do stability analysis of a MIMO simulink model?
You can use Linear Analysis tool in Simulink Control Design to compute a transfer function of a model (linearize the model). Tak...

plus de 10 ans il y a | 0

Réponse apportée
How do I tune all the 4 PI controllers of a STATCOM?
You can try using <http://www.mathworks.com/help/robust/tuning-with-control-system-tuner-app.html Control System Tuner> which ca...

plus de 10 ans il y a | 1

| A accepté

Réponse apportée
I want to know the region of PID tuner
The PID Tuner considers as the plant all blocks in the loop between the PID Controller block output and input. See <http://w...

plus de 10 ans il y a | 0

Réponse apportée
How to tune PID using PID tuner app if output data are n
Can you try resampling your data at one sample rate?

plus de 10 ans il y a | 0

Réponse apportée
How can i exract transfer fuction of my nonlinear real system?
Can you "break" the control system and put some test signals through your motor - steps, chirps, sine waves, etc? If you can ...

plus de 10 ans il y a | 0

Réponse apportée
Linearization error in PID controller block
Please do not post the same question multiple times. Also, can you be more specific about the error you are getting. hard to hel...

plus de 10 ans il y a | 0

Réponse apportée
How would you design a PID controller to stabilize a 4th order system?
Some plants just cannot be controlled with a PID controller. In that case you need to look at other types of control. You can ...

plus de 10 ans il y a | 0

Réponse apportée
Auto tuning PID algorithm in Simulink
See the doc <http://www.mathworks.com/help/slcontrol/ug/pid-tuning-algorithm.html here> .

presque 11 ans il y a | 0

| A accepté

Réponse apportée
transfer function=1/2s^3+3s^2+s,draw the nyquist plot .i have not get the same plot which i have studied.
In your plot the half circle (from -0 to +0) has infinite magnitude, because your system has a pole at zero. nyquist plot cre...

presque 11 ans il y a | 1

A résolu

Produce a cosine wave
Produce the following signal: <<http://blogs.mathworks.com/images/seth/cody/cosine-eqn.png>>

presque 11 ans il y a

Réponse apportée
How do I get the DC motor model to match real world
You can try using Simulink Design Optimization to automatically estimate model parameters to match both measured voltage and cur...

presque 11 ans il y a | 0

Réponse apportée
transfer function=1/2s^3+3s^2+s,draw the nyquist plot .i have not get the same plot which i have studied.
Can you attach the plot you expected to see?

presque 11 ans il y a | 0

Réponse apportée
Is it possible to interface flightgear 3.4 with matlab 2013a
Support for interfacing with FlightGear 3.4 was added in 15b, so that's why you are seeing issues in 13a.

presque 11 ans il y a | 0

Réponse apportée
System Identification tool "OE, tfest" question
<http://www.diva-portal.org/smash/get/diva2:316884/FULLTEXT01.pdf This paper by Lennart Ljung> might be helpful.It pretty much a...

presque 11 ans il y a | 0

| A accepté

Réponse apportée
Neural Network Predictive Controller Design without the plant model but with historical data.
This is applicable to all control design problems in general: if you have plant input-output data and want to create a plant mod...

presque 11 ans il y a | 0

Réponse apportée
Simulink PID controller apparently doing nothing
I cannot reproduce this behavior. When I run your setup, I definitely see closed-loop response getting to 1 in steady-state. May...

presque 11 ans il y a | 0

Réponse apportée
Why is the error of the close loop PID max of 1? File is provided.. please help
The max error is always one because at time 0, when you command the reference to step from 0 to 1, your plant model is initializ...

presque 11 ans il y a | 0

| A accepté

Réponse apportée
how to apply a pwm signal to dc servo motor using pid controller?
<http://www.mathworks.com/discovery/pulse-width-modulation.html This page with resources on pwm> should be helpful. It includes ...

presque 11 ans il y a | 0

Réponse apportée
Transfert function with System identification toolbox
There are a few issues here. 1. Your data (Amp, Pha) does not agree with closed form transfer function at low frequencies, be...

presque 11 ans il y a | 1

Réponse apportée
Using the Recursive Polynomial Model Estimator for online estimation
I don't think you can expect to get the exact a,b,c,d matrices you start from. The model is estimating system dynamics, and ther...

presque 11 ans il y a | 0