PID controller in Matlab/Simulink
I wonder why PID block in Simulink Extras doesn't have Controller
bias parameter (i think someone calls it feedforward parameter)?
Is it possible to add it to simulation and not to be considered
disturbance by simulation?
...tuning PID using Ziegler and Nichols
In simulink I have created this type of simple closed loop system:
Step ->(sum + - ) [PID] -> [Plant] -> Scope
Where Plant is:
(IN1) -> [Transfer function] -> Time Delay -> Out1
G(s) = e^(-s)/Ts +1 (T - Time constant = 0.1)
^ = to the power of;
and I need to find Ki, Kd and Kp for the PID
Not certain for the Step parameters whether to neglect them for now or no...MATLAB discrete time simulation of simulink model (Control simulink simulation time from MATLAB)
I am trying to run a simulink model simulation in definite time steps from MATLAB so that I can extract data from simulink, do some caluclations and send these new data back to Simulink for further simulation from the point I left off.
The process can be descirbed below:
Note that total simulation time is 600 seconds.
1. Start simulation from MATLAB for 100 seconds and then pause the simulation
2. Extract all the data I need from simulink and bring into MATLAB, do some calculations to changes simulink model parameters and then pass this new calculated data back to simulink.
3. Continue th...Tuning PID controlers Ziegler & Choen-Coon
To anyone help!!!
Problem using tuning tecnics of PID controlers at open loop to get parameters for P, PI and PID using transference function G(s) equals (2 e-2s)/((2s+1)(3s+1))
...tuning pid controller using genetic algorithm in simulink
i have modelled longitudinal autopilot system by using PID controller.
I want to tune pid controller by using genetic algorithm.
I dont know how to use GA in simulink
...PID control using Ziegler-Nichols Closed Loop Method
I need some help with my homework,
G(s) = e^(-s)/Ts + 1 where T is time constant = 0.1
I need to find Ki, Kp, Kd for my PID controller.
So far no luck in anycase, plz help I have no Idea of the alghoritm to solve this example
and I have over 40 similar problems to solve for less then a day :)
Thanks in advance
...Simulink, PID controller problem, Controls !
Hello Matlab users,
I am a E.Eng major student and I have been using Matlab for my Control Systems class.
But recently I am having a big confussion in Matlab simulink That I cannot understand at all.
Here is my problem:
I have this open loop transfer function :
= 172.98/(s^2 +2.57s)
And I am supposed to find PID gain so that the system's setting time is =0.3sec.
Now By using Proportional and Drivative I came up with the answer of
Kp = 0.198
Kd = 0.077
Therefore, the PD controller transfer function will be = 0.077s + 0.198
WhenI plug that value into the PID controller with KI=0, it...Tuning PID parameters of DC motor speed control using Ziegler Nicholas method
Is it impossible to implement a dc motor speed control using closed loop ziegler nicholas method? For some transfer function I used ziegler nicholas method but I couldn't determine the PID parameters for DC motor speed control.Could you propose anything for this operation?
And my transfer fuction is;
s^2 + 14s + 40.02
I couldn't find the PID parameters using Ziegler-Nichols method(closed loop).
Where is my mistake?Could you propose anything???
Am I writing unreasonable things that are impossible...How will you connect PID or ANN controller developed in Matlab Simulink with DC motor of your laboratory (Actual Motor)a
Plz help me if we design any controller (PID or ANN)in Matlab
Simulink, and then we need to this controller with any electrical
machine (Actual machine of laboratory).
I am M. Phil Student, if any one helps me in a proper way, I will try
my best to pay nominal charges, if he/she guides me in an excellent
way. May be I request him/her for the supervision of my project.
B.E Electrical Engineering
...How can I create a control loop of a nonlinear control system in Matlab/Simulink?
In most cases, the control system is often designed for linear
systems,namely,by using the transfer function as a block representing
the object to control. However, I have to build a control system to
simulate the control of nonlinear object without any linearization.
How can I achieve that? Can I use the S-function? Thanks in advance!
On Jan 29, 5:30 am, workaholic <liua...@gmail.com> wrote:
> In most cases, the control system is often designed for linear
> systems,namely,by using the transfer function as a block representing
> the object to control. However, I have to build...MATLAB/Simulink and Source Control (MKS Client). MATLAB Performance Improvement.
I'm looking for two things. Help with either one would be
1) I have a MATLAB GUI that runs a series of scripts. It
makes use of the fixed point toolbox (fi objects and
quantizer objects) and those things make it VERY slow. I
have rewritten the quantizer and made my own quantizer m
function. But, it doesn't warn me about overflows or
underflows (which I suppose I could code up). Just the
same, it'd be nice to go from MATLAB scripts and function
to machine code if that's possible.
2) We use MKS Integrity Client 2006 for software source
control. ...Tune PID controller?
I need to tune a PID controller with time constants
(period of the scillation) on the order of hours.
Any suggestion for procedures or algorithms?
Rune Allnor wrote:
> Hi all.
> I need to tune a PID controller with time constants
> (period of the scillation) on the order of hours.
Do you have a model of the controlled plant or the PID has to be tuned
> Any suggestion for procedures or algorithms?
PID is a basic thing, you will get zillion of references on google.
* The first that comes to mind are Ziegler and N...PID Controller in Matlab
I'm simulating a power system in matlab (v 6.1) and I'm using PID
controller block to control a thyristor. At the first simulation,
everything seems to work fine and as expected. But when I changed the
PID parameters, nothing seems to change (the eigenvalues + voltages,
etc of the system stay the same). Is this some kind of bug or did I
do something wrong?
Please Help, thanks
PID controller should work. check if your kp ki and kd are not too
low. Well or most probably you didnt connect things right.
> Hi People,
> I'm simu...Tuning of PID CONTROLLER
This is to get some help on tuning of PID controller parameters in a linearized system model. Further the tuning has to be done by already established global optimization techniques based on evolutionary computation. How to communicate simulink model with m file in matlab. How algorithm will fetch the quality (cost) from simulink model.
The quality or cost is usually taken as ISE, ITAE like that....
Do help me..............