How to repeat whole coding by increasing value of variable

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Lee Dira
Lee Dira 2020-6-14
评论： Aditya Verma 2020-6-15
Hi, i wonder if i can run my coding 5 times but vary my bus_value. I want get value of Ploss, location1, location2, real1,real2, reactive1 and reactive2 automaticly for each load (20, 30, 40, 50 and 60) instead of changing manually the bus_value=30 then run. copy the 'accepted value' into excel. Then change again the bus_value=40. Run again and copy in excel again...until bus_value=60.
bus_no=20; % chosen load bus, Qd20
bus_value=20; %% 20 MVAR, Qd20=20 MVAR (vary 20MVAR to 30-60 MVAR)
for i1=1:20
%caling 30-bus syst
[basemva,accuracy,maxiter,busdata,linedata]=Bus_30;
busdata(bus_no,6)=bus_value; %%% Stress the load
%%fitness 1-inject Pdg & Qdg in 30-syst to find new Ploss
busdata(x1_Dg1(i1),5)=-x1_Pdg1(i1);
busdata(x1_Dg1(i1),6)=x1_Qdg1(i1);
busdata(x1_Dg2(i1),5)=-x1_Pdg2(i1);
busdata(x1_Dg2(i1),6)=x1_Qdg2(i1);
%run loadflow
lfybus;; %forms the bus admittance matrix
lfnewton;; %power flow solution by newton raphson method
busout;; %prints the power flow solution on the screen
linefloww;;
%%%%% FITNESS 1 %%%%%
VminDg1(i1)=min(Vm);
PlossDg1(i1)=real(SLT);
DataF1(i1,:)=[x1_Dg1(i1),x1_Dg2(i1),x1_Pdg1(i1),x1_Pdg2(i1),x1_Qdg1(i1),x1_Qdg2(i1),VminDg1(i1),PlossDg1(i1)];
end
%%% value accepted%%
ploss=DataF1(1,8)
location1=DataF1(1,1)
location2=DataF1(1,2)
real1=DataF1(1,3)
real2=DataF1(1,4)
reactive1=DataF1(1,5)
reactive2=DataF1(1,6)

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回答（1 个）

Aditya Verma
Aditya Verma 2020-6-14
编辑：Aditya Verma 2020-6-14
Hi, you can use functions to avoid code repetition:
for bus_value = 20:10:60
[ploss, location1, location2, real1, real2, reactive1, reactive2] = myFunction(bus_value);
% Do something with your output
end
If you're new to this concept I would suggest you to try the free MATLAB onramp course, feel free to skip to the section "Calling Functions".
You can read more about functions herehttps://www.mathworks.com/help/matlab/functions.html
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Aditya Verma
Aditya Verma 2020-6-15
You're welcome. If you've found this answer helpful and it resolves your doubt, then you can mark it as accepted.

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