Answered
Estimation of Transfer Function of a Setup
You can use <http://www.mathworks.com/products/sysid/ System Identification Toolbox> to estimate closed-loop transfer function T...

12 years ago | 0

Answered
Simulink coder with PID - Algebraic loop when using antiwindup
In the block dialog, make sure you have "Forward Euler" selected for both integrator method and filter method. HTH.

12 years ago | 0

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How to express ZOH transfer function in Matlab?
s=tf('s'); Ts=0.1 %replace with desired value sys=(1-exp(-s*Ts))/s bode(sys)

12 years ago | 2

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Answered
use range as input in evalfis
The first input argument are the input values to the FIS, see <http://www.mathworks.com/help/fuzzy/evalfis.html the doc> for mor...

12 years ago | 0

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Compare tf function with x-y data
You get magnitude and phase of an LTI object (ss,tf,etc) by using <http://www.mathworks.com/help/control/ref/bode.html bode> com...

12 years ago | 0

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How to export data inputs from GUI to Fuzzy logic toolbox
Not sure I understand your question completely,but I think you are asking about how to run the data through an FIS system. In th...

12 years ago | 0

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How to isolate the unstable part of a Linear System?
<http://www.mathworks.com/help/control/ref/stabsep.html stabsep>

12 years ago | 0

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Answered
How should I make a Bode Plot of a Multiple Input and multiple Output System
There seem to be several things that are wrong. For example: # You define a variable nmax, but the script is using wmax - loo...

12 years ago | 0

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how to give input to fuzzy logic
Use command <http://www.mathworks.com/help/fuzzy/evalfis.html evalfis>.

12 years ago | 0

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Answered
How can i use the PID controller function
pid objects and PID Tool were added to Control System Toolbox in release 2010b. Upgrade to that release or later to be able to u...

12 years ago | 0

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Answered
How to linearize SimHydraulics spool valve
Hard to say without having the model. I just tried linearizing a shipping example with a 4 -way valve, sh_closed_loop_circuit_4...

12 years ago | 0

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Bode form of a transfer function
Yes, as descsribed in <http://www.mathworks.com/help/control/ref/zpk.html zpk doc>. >> sys=zpk(1,[2 3],4) sys = ...

12 years ago | 0

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Answered
How to linearize SimHydraulics spool valve
Most probably the linearization is zero because you are computing it at the operating point where the orifice is closed. The too...

12 years ago | 0

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Simulink Modelling: Parameter estimation
Are the constants parameterized with variables that are present in MATLAB workspace? From <http://www.mathworks.com/help/sldo...

13 years ago | 0

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Answered
Qualitative Modelling with ANFIS, FIS Optimization, Loading Data
The only way to show that your model is a good model is to validate it against a set of input/output data. What are the inputs t...

13 years ago | 0

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Systems design Optimization problem
Simulink Design Optimization does not currently support integer optimization.

13 years ago | 0

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Answered
How to save .* fis file into .*m.files
With Fuzzy Logic Toolbox you can create and edit fuzzy systems using the GUI like you are doing, or using command line functions...

13 years ago | 0

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how do i know ,rules automatically created for FIS are good enough and crispy , there is graphical representation of rules in the form of curves
have you read through this example in the <http://www.mathworks.com/help/fuzzy/anfis-and-the-anfis-editor-gui.html#FP43142 doc>?...

13 years ago | 0

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Tune PID controller for networked scara robot on Truetime
For MIMO PID tuning, if you have your plant model, you can look at _systune_ function in Robust Control Toolbox. With this funct...

13 years ago | 0

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How to represent uncertain transport delays
Hi, Unfortunately, modeling of uncertain transport delays is not currently supported. Arkadiy

13 years ago | 0

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Answered
Discrete PID reg. sample time and Solver options
Try inserting a <http://www.mathworks.com/help/simulink/slref/ratetransition.html rate transition block> like the tool says.

13 years ago | 0

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Answered
How to save the op_piont data to the file?
Can you explain why you need to save to a text file and why you need to use fprintf? One way you could get a text file is cre...

13 years ago | 0

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Can't find a trimmed operating point to a Simulink Model
A couple of ideas: 1. When you do the trimming, you click "Specifications" to specify which model states should be at steady ...

13 years ago | 0

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Undefined function 'tf' for input arguments of type 'char'?
_tf_ is part of Control System Toolbox. The error message you are seeing means you do not have this product on your license. You...

13 years ago | 0

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how to plot multiple bode plots in one figure ?
When you open the dialog for Bode Plot block, the third tab, called "logging" lets you save the linear system into MATLAB worksp...

13 years ago | 2

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Answered
How to implement Fuzzy PID using Simulink and FIS editor. Please try to be as simple as possible in your answers.
<http://www.mathworks.com/help/fuzzy/examples/using-lookup-table-in-simulink-to-implement-fuzzy-pid-controller.html?prodcode=FL&...

13 years ago | 0

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How to use pidtool and simulink
Use <http://www.mathworks.com/help/simulink/slref/pidcontroller.html PID Controller block> to implement your PID controller in S...

13 years ago | 0

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How do you calculate instantaneous output of a transfer function ?
Your best bet is probably calling a Simulink model that would simulate closed loop response of your fuzzy controller. You can ca...

13 years ago | 0

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Answered
problem of plot the model of SI toolbox
Several options: 1. You can use the identified model in Simulink using the <http://www.mathworks.com/help/ident/blocklist.htm...

13 years ago | 0

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how can I design a MPPT based solar charge controller using P&O algorithm by Matlab Simpower?
<https://www.mathworks.com/company/events/webinars/wbnr57525.html?id=57525&p1=869881767&p2=869881785 This> might help.

13 years ago | 0