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潮流計算MATLAB代碼,利用前推回代法計算IEEE33節點配電網系統潮流。
代碼片段和文件信息
clear
clc
load?Bus_33.txt
Bus=Bus_33;
%?Bus(:2)=Bus(:2)*0.71;
%?Bus(:1)=Bus(:1)*0.71;
Bus(182)=Bus(182)-8000;
%?Bus(183)=Bus(183)+800;
load?Branch_33.txt
Branch=Branch_33;
[busnumcolumn]=size(Bus);
[branchnumcolumn]=size(Branch);
shoubus=Branch(:2);????????????%首節點
mobus=Branch(:3);??????????????%末節點
Vbus=ones(busnum1);????????????%節點的初始電壓都為1
Vbus(:1)=12.66;????????????????%電壓為12.66kV
Vbus1=Vbus;
Ploss=zeros(busnum1);
Qloss=zeros(busnum1);
e=1;
k=0;
Branch1=Branch;
n=1;
while?~isempty(Branch1)
m=1;
[srow]=size(Branch1);
while?s>0
t=find(Branch1(:2)==?Branch1(s3));
if?isempty(t)
T1(n:)=?Branch1(s:);
n=n+1;
else
T2(m:)=?Branch1(s:);
m=m+1;
end;
s=s-1;
end;
Branch1=T2;
T2=[];
end;
while?e>1.0e-05
????????P=zeros(busnum1);
????????Q=zeros(busnum1);
for?s=1:branchnum
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