Beantwortet
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...

fast 10 Jahre vor | 0

Beantwortet
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, ...

fast 10 Jahre vor | 1

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Beantwortet
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>

etwa 10 Jahre vor | 0

Beantwortet
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...

etwa 10 Jahre vor | 1

Beantwortet
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...

etwa 10 Jahre vor | 1

Beantwortet
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...

etwa 10 Jahre vor | 0

Beantwortet
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...

etwa 10 Jahre vor | 0

Beantwortet
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...

etwa 10 Jahre vor | 1

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Beantwortet
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...

etwa 10 Jahre vor | 0

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

etwa 10 Jahre vor | 0

Beantwortet
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 ...

etwa 10 Jahre vor | 0

Beantwortet
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...

etwa 10 Jahre vor | 0

Beantwortet
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 ...

etwa 10 Jahre vor | 0

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

mehr als 10 Jahre vor | 0

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Beantwortet
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...

mehr als 10 Jahre vor | 1

Gelöst

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

mehr als 10 Jahre vor

Beantwortet
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...

mehr als 10 Jahre vor | 0

Beantwortet
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?

mehr als 10 Jahre vor | 0

Beantwortet
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.

mehr als 10 Jahre vor | 0

Beantwortet
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...

mehr als 10 Jahre vor | 0

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Beantwortet
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...

mehr als 10 Jahre vor | 0

Beantwortet
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...

mehr als 10 Jahre vor | 0

Beantwortet
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...

mehr als 10 Jahre vor | 0

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Beantwortet
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 ...

mehr als 10 Jahre vor | 0

Beantwortet
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...

mehr als 10 Jahre vor | 1

Beantwortet
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...

mehr als 10 Jahre vor | 0

Beantwortet
Representing controller in z-domain and plant in continuous domain
Simulink model should not be creating any errors if you are combining continuous and discrete blocks. Here is a model with a si...

mehr als 10 Jahre vor | 1

Frage

What is Missing from Fuzzy Logic Toolbox?
What should MathWorks add to Fuzzy Logic Toolbox? What features would be useful to you?

mehr als 10 Jahre vor | 1 Antwort | 2

1

Antwort

Beantwortet
Why cant i tune this simple electrical system? "The plant model in the PID loop linearizes to zero" Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!
See <http://www.mathworks.com/help/slcontrol/ug/troubleshooting-automatic-pid-tuning.html#btt7pgj here> .

mehr als 10 Jahre vor | 0

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Beantwortet
how to write a matlab coding for position and velocity algorithm for a digital pid controller
http://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer

mehr als 10 Jahre vor | 0