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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...

대략 11년 전 | 1

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

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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> .

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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

대략 11년 전 | 0

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How to tune PID for a Output(t) = k*Input(t) system?
Plant model does not have an integrator in it, so you need an integral term to achieve zero steady-state error. In other words,...

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Tuning PID - I tune the PID the first time and adjust a few things, but when I want to adjust the PID later it says "The plant model in the PID loop linearizes to zero, and therefore cannot be used in PID controller design."
Hi, Here is the <http://www.mathworks.com/help/slcontrol/ug/troubleshooting-automatic-pid-tuning.html#btt7pgj doc section> that...

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Obtaining a transfer function from tfestimate
Hi, If you have access to System Identification Toolbox, you could use it to estimate a transfer function that you can use fo...

대략 11년 전 | 1

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PID GImbal 2 Axis Simulation
I suggest you start by checking out some of the already existing resources, such as <http://www.mathworks.com/discovery/pid-cont...

11년 초과 전 | 0

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How to define Controller Parameters Source for PID simulink block in matlab 2013a?
The ability to specify PID gains externally was added in 2015a. It does not exist in the earlier releases. The workaround is to ...

11년 초과 전 | 1

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what tuning method is used for 'pidtool' or 'pidTuner' for PID tuning ?
See <http://www.mathworks.com/matlabcentral/answers/182606-how-does-the-pid-tuner-calculate-the-parameters-kp-ki-kd here> .

11년 초과 전 | 0

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adaptive model predictive control
The intitial values are substracted to remove the offset from the data. The delay block resamples continuous signals coming from...

11년 초과 전 | 0

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Is possible uses PLC Code Generation with MPC (Model Predictive Control)
At the time this question was asked MPC Controller block did not support structured text generation with Simulink PLC Coder. Thi...

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Different MIMO zeros, poles when using tf and ss system representation
Your post does not include the code for creating ss_sys and tf_sys, but I assume you created tf_sys by doing: tf_sys=tf(ss_...

11년 초과 전 | 1

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PID controller gain calculation
Please try the tools and techniques explained on this page for <http://www.mathworks.com/discovery/pid-control.html PID Control>...

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How to use 'idfrd' system object as a channel model in simulink
You cannot do time domain simulation on a frequency response model. What you can do is fir a transfer function or state space mo...

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How do I enter output/input data in PID Tuner app?
The time vector has to be uniformly sampled. In your data time starts at -2, then a sample at -1, then 0, then sample time becom...

11년 초과 전 | 1

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PID Tuning tells me the system has closed loop stability even though it doesn't
Could it be the same issue as in <http://www.mathworks.com/matlabcentral/answers/180391-is-matlab-giving-a-wrong-root-locus-mayb...

11년 초과 전 | 0

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How do I make the transfer function matrix to state space？
P=[(s+4)/(s^2+4*s+25) -25/(s^2+4*s+25); (s+5)/(s^2+4*s+25) (s-25)/(s^2+4*s+25)] S=ss(P)

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plot frequency response of simulink system
There are tools for linearizing Simulink models - i.e., getting a transfer function from a Simulink model. You can take a look o...

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"The PID tuning tools are not supported for plant models of type "ss"? What is th reason?
Is there any way you could attach a simple model so I could try it? Or post a snapshot of a model?

11년 초과 전 | 0

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Problem with selecting linear analysis points
If you want to do frequency response estimation, then please refer to <http://www.mathworks.com/help/slcontrol/examples/designin...

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Trim Output Specification for Element of a Bus
Unfortunately, this is not currently supported. I created an enhancement request to address this in a future release.

11년 초과 전 | 0

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How to use PID controlller tune option in 2009Ra version
The functionality for automatic tuning of PID controllers was introduced in Control System Toolbox in release R2010b ( _pidtune_...

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How to tune a PIV controller using MATLAB?
<http://www.mathworks.com/products/robust/apps.html Control System Tuner app> works well for this custom controller architecture...

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Is MATLAB giving a wrong root locus? Maybe a bug?
There is no error with your code or bug in MATLAB. It just seems you got the sign wrong. If you do rlocus(-num,den), you will ...

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Fitting transfer function to amplitude phase data
Actually the function specifically created for this task is <http://www.mathworks.com/help/ident/ref/tfest.html tfest> from Syst...

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Designing a PID controller for a pendulum
You could tune the PID controller with PID Tuner app, unless you are trying to stcik with your method specifically. >>s=tf(...

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Matching step response from Simulink with Matlab
No, it actually has to do with calculating the derivative of a signal. You don't want to use pure derivative block. To match res...

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unable to tune PID controller with matlab function block
Take a look at <http://www.mathworks.com/videos/pid-controller-tuning-for-a-model-with-discontinuities-89347.html this video> an...

11년 초과 전 | 0

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how to map a conrol value from simulink block to PWM% value?
Take a look <http://www.mathworks.com/discovery/pulse-width-modulation.html here> .

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