How to send intermediate data(here duty cycle) sequentially from embedded function file to simulink block?

조회 수: 1 (최근 30일)
I m writing algorithm for Particle swarm optimization to find Maximum power point tracking in photo voltaics, in embedded matlab function. From algorithm i have to send three duty cycles sequentially to simulink converter block before the algorithn finishes.I use the following code.
function DC = PSO(V,I)
.................
DC=0;D=zeros(1,3);P=zeros(1,3);
..................
**********************************%%MAIN LOOP*************************
iter = 0 ; % Iterations’counter
while ( iter < bird_step )
iter = iter + 1;
for i = 1:3,
P(i)=V*I; %calculate power after a dutycycl sent
D(i)=current_dutycycl(i);
DC=D(i); %to send dutycycl
pause(0.1)
end
current_power=P;
for i = 1 : 3
if current_power(i) > local_best_power(i)
local_best_power(i) = current_power(i) ;
local_best_dutycycl(:,i) = current_dutycycl(:,i) ;
end
end
[current_global_best_power,g] = max(local_best_power);
if current_global_best_power > global_best_power
global_best_power = current_global_best_power;
for i=1:3
globl_best_dutycycl(:,i) = local_best_dutycycl(:,g);
end
end
velocity = w *velocity + c1*(R1.*(local_best_dutycycl-current_dutycycl)) + c2*(R2.*(globl_best_dutycycl-current_dutycycl));
current_dutycycl = current_dutycycl + velocity ;
end
[Peak_power,I] = max(current_power) % maximum power
current_dutycycl(:,I) % best solution
DC=current_dutycycl(:,I);% send dutycycl at each iteration
end
How to send duty cycle from for loop ... is ter any other way
  댓글 수: 2
Azzi Abdelmalek
Azzi Abdelmalek 2014년 3월 5일
dalia elkashef commented
hello evry 1. im doing a simulation based on pso method to get a output from mppt which source by a solar. i am also in in beginer stage so i need your help to indicate how can i write code ? and how add it at simulink ? plsssssssssssssssssssss help me V Vaishnavi Kumar on
John D'Errico
John D'Errico 2014년 3월 18일
dalia elkashef - Please don't add comments, then flag them to get attention. If you have a valid question, then ASK IT, separately as a question!
As it is, your question shows you are not making an effort to learn, just asking for someone else to do your work for you. The only way to learn is by trying, by making an effort.

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답변 (3개)

Azzi Abdelmalek
Azzi Abdelmalek 2012년 10월 23일
The output is sent after the loop is finished. Use a for iterator subsystem .block
  댓글 수: 2
V Vaishnavi Kumar
V Vaishnavi Kumar 2012년 10월 24일
편집: V Vaishnavi Kumar 2012년 10월 26일
while simulating i m getting an error as: "Error occurred while attempting to call the error callback function 'Stateflow.Translate.translate' of subsystem 'Solar_MPPT_Rloadstudy/PV panel/PV module' "in the adjacent PV module block, this same PV module working well with other algorithms.!............ what 's the reason for this......how to clear this error

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Abdullrahman Ali
Abdullrahman Ali 2014년 3월 20일
Dear V Vaishnavi Kumar
I'm working with Genetic Algorithm (GA) and I'm facing the same problem. Did you solve the problem? Could you please tell me how?

Rahul Sugathan
Rahul Sugathan 2015년 4월 18일
편집: Walter Roberson 2020년 5월 16일
i dont think u can send the duty cycle from a for loop. U must use a persistent and ifisempty combination.
Here's how u send 3 different values,
function DC=fcn %#codegen
persistent u
if isempty(u)
u = 0;
end
u=u+1;
if(u==1)
DC=15;
pause(0.1);
elseif(u==2)
DC=29;
pause(0.1)
else
DC=50;
pause(0.1);
end

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