function?[CL]=powerflow（）
b=32;
n=33;
LL=5;???????????%聯(lián)絡(luò)開關(guān)數(shù)??
Sb=10;??????????%MW
Vb=12.66;???????%KV
Zb=Vb^2/Sb;?????%阻抗
check=1;
checkhl=1;
checkgd=1;
jy=0;
BranchM=[1?1?2????0.0922+i*0.047
????2?2?3????0.4930+i*0.2511
????3?3?4????0.3660+i*0.1864
????4?4?5????0.3811+i*0.1941
????5?5?6????0.8190+i*0.7070
????6?6?7????0.1872+i*0.6188
????7?7?8????0.7114+i*0.2351
????8?8?9????1.0300+i*0.7400
????9?9?10???1.0440+i*0.7400
????10?10?11?0.1966+i*0.0650
????11?11?12?0.3744+i*0.1238
????12?12?13?1.4680+i*1.1550
????13?13?14?0.5416+i*0.7129
????14?14?15?0.5910+i*0.5260
????15?15?16?0.7463+i*0.5450
????16?16?17?1.2890+i*1.7210
????17?17?18?0.3720+i*0.5740
????18?2?19?0.1640+i*0.1565
????19?19?20?1.5042+i*1.3554
????20?20?21?0.4095+i*0.4784
????21?21?22?0.7089+i*0.9373
????22?3?23?0.4512+i*0.3083
????23?23?24?0.8980+i*0.7091
????24?24?25?0.8960+i*0.7011
????25?6?26?0.2030+i*0.1034
????26?26?27?0.2842+i*0.1447
????27?27?28?1.0590+i*0.9337
????28?28?29?0.8042+i*0.7006
????29?29?30?0.5075+i*0.2585
????30?30?31?0.9744+i*0.9630
????31?31?32?0.3105+i*0.3619
????32?32?33?0.3410+i*0.5362
????33?8??21?2.0+i*2.0
????34?9??15?2.0+i*2.0
????35?12?22?2.0+i*2.0
????36?18?33?0.5+i*0.5
????37?25?29?0.5+i*0.5???];%支路參數(shù)矩陣，支路號(hào)、首末節(jié)點(diǎn)、支路參數(shù)
NodeM=[1?0
????2?0.1000+i*0.0600
????3?0.0900+i*0.0400
????4?0.1200+i*0.0800
????5?0.0600+i*0.0300
????6?0.0600+i*0.0200
????7?0.2000+i*0.1000
????8?0.2000+i*0.1000
????9?0.0600+i*0.0200
????10?0.0600+i*0.0200
????11?0.0450+i*0.0300
????12?0.0600+i*0.0350
????13?0.0600+i*0.0350
????14?0.1200+i*0.0800
????15?0.0600+i*0.0100
????16?0.0600+i*0.0200
????17?0.0600+i*0.0200
????18?0.0900+i*0.0400
????19?0.0900+i*0.0400
????20?0.0900+i*0.0400
????21?0.0900+i*0.0400
????22?0.0900+i*0.0400
????23?0.0900+i*0.0500
????24?0.4200+i*0.2000
????25?0.4200+i*0.2000
????26?0.0600+i*0.0250
????27?0.0600+i*0.0250
????28?0.0600+i*0.0200
????29?0.1200+i*0.0700
????30?0.2000+i*0.6000
????31?0.1500+i*0.0700
????32?0.2100+i*0.1000
????33?0.0600+i*0.0400?];?%節(jié)點(diǎn)參數(shù)矩陣（電源節(jié)點(diǎn)負(fù)荷為0），節(jié)點(diǎn)號(hào)，功率

layerM=[1];??????%節(jié)點(diǎn)分層矩陣，電源節(jié)點(diǎn)號(hào)記“1”
NU=zeros（1n）;???%上層節(jié)點(diǎn)矩陣（有33列的行矩陣）
BranchM（:4）=BranchM（:4）/Zb;?%阻抗標(biāo)幺化
NodeM（:2）=NodeM（:2）/Sb;?%功率標(biāo)幺化
A=zeros（n）;???%節(jié)點(diǎn)-節(jié)點(diǎn)關(guān)聯(lián)矩陣A
for?i1=1:b
????A（BranchM（i12）BranchM（i13））=1;
????A（BranchM（i13）BranchM（i12））=1;
end

%以下用循環(huán)求取矩陣layerM和NU
h=1;
while（min（NU（2:33）~=0）==0）?%NU矩陣的2-最后都有上層節(jié)點(diǎn)了，表示循環(huán)結(jié)束了
????m=max（find（layerM（:h）））;??%m為矩陣layerM第h列非零元素的個(gè)數(shù)
????k=1;
????for?i1=1:m
????????g=layerM（i1h）;???????????%layerM的第i1行第h列元素
????????ss=f