Hi all,

I am trying to converge the power flow of 69 bus radial distribution by NR
method here is the case file I have created.the error shows, It is not
getting converged in 10 iterations.

Please help me in this regard.

Thanking you,
Pinak Panda
M.Tech-scholar
SRIT Kolkata
India
function mpc = case69
%% MATPOWER Case Format : Version 2
mpc.version = '2';

%%-----  Power Flow Data  -----%%
%% system MVA base
mpc.baseMVA = 100;

%% bus data
%       bus_i   type    Pd      Qd      Gs      Bs      area    Vm      Va      
baseKV  zone    Vmax    Vmin
mpc.bus = [
      1    3    0      0      0    0    1    1    0    12.66    1    1    0.90; 
          
      2    1    0      0      0    0    1    1    0    12.66    1    1    0.90; 
   
      3    1    0      0      0    0    1    1    0    12.66    1    1    0.90;
      4    1    0      0      0    0    1    1    0    12.66    1    1    0.90; 
         
      5    1    0      0      0    0    1    1    0    12.66    1    1    0.90; 
                 
      6    1    2.6    2.2    0    0    1    1    0    12.66    1    1    0.90; 
        
      7    1    40.4   30     0    0    1    1    0    12.66    1    1    0.90; 
            
      8    1    75     54     0    0    1    1    0    12.66    1    1    0.90; 
            
      9    1    30     22     0    0    1    1    0    12.66    1    1    0.90; 
        
      10   1    28     19     0    0    1    1    0    12.66    1    1    0.90; 
        
      11   1    145    104    0    0    1    1    0    12.66    1    1    0.90; 
        
      12   1    145    104    0    0    1    1    0    12.66    1    1    0.90; 
        
      13   1    8      5      0    0    1    1    0    12.66    1    1    0.90; 
        
      14   1    8      5.5    0    0    1    1    0    12.66    1    1    0.90; 
        
      15   1    0      0      0    0    1    1    0    12.66    1    1    0.90; 
         
      16   1    45.5   30     0    0    1    1    0    12.66    1    1    0.90; 
                 
      17   1    60     35     0    0    1    1    0    12.66    1    1    0.90; 
        
      18   1    60     35     0    0    1    1    0    12.66    1    1    0.90; 
        
      19   1    0      0      0    0    1    1    0    12.66    1    1    0.90; 
        
      20   1    1      0.6    0    0    1    1    0    12.66    1    1    0.90; 
        
      21   1    114    81     0    0    1    1    0    12.66    1    1    0.90; 
           
      22   1    5      3.5    0    0    1    1    0    12.66    1    1    0.90; 
        
      23   1    0      0      0    0    1    1    0    12.66    1    1    0.90; 
        
      24   1    28     20     0    0    1    1    0    12.66    1    1    0.90; 
         
      25   1    0      0      0    0    1    1    0    12.66    1    1    0.90; 
        
      26   1    14     10     0    0    1    1    0    12.66    1    1    0.90; 
        
      27   1    14     10     0    0    1    1    0    12.66    1    1    0.90; 
         
      28   1    26     18.6   0    0    1    1    0    12.66    1    1    0.90; 
        
      29   1    26     18.6   0    0    1    1    0    12.66    1    1    0.90; 
        
      30   1    0      0      0    0    1    1    0    12.66    1    1    0.90; 
        
      31   1    0      0      0    0    1    1    0    12.66    1    1    0.90; 
        
      32   1    0      0      0    0    1    1    0    12.66    1    1    0.90; 
        
      33   1    14     10     0    0    1    1    0    12.66    1    1    0.90; 
        
      34   1    19.5   14     0    0    1    1    0    12.66    1    1    0.90; 
        
      35   1    6      4      0    0    1    1    0    12.66    1    1    0.90; 
         
      36   1    26     18.55  0    0    1    1    0    12.66    1    1    0.90; 
        
      37   1    26     18.55  0    0    1    1    0    12.66    1    1    0.90; 
         
      38   1    0      0      0    0    1    1    0    12.66    1    1    0.90; 
        
      39   1    24     17     0    0    1    1    0    12.66    1    1    0.90; 
         
      40   1    24     17     0    0    1    1    0    12.66    1    1    0.90; 
        
      41   1    1.2    1      0    0    1    1    0    12.66    1    1    0.90; 
        
      42   1    0      0      0    0    1    1    0    12.66    1    1    0.90; 
         
      43   1    6      4.3    0    0    1    1    0    12.66    1    1    0.90; 
        
      44   1    0      0      0    0    1    1    0    12.66    1    1    0.90; 
         
      45   1    39.22  26.3   0    0    1    1    0    12.66    1    1    0.90; 
         
      46   1    39.22  26.3   0    0    1    1    0    12.66    1    1    0.90; 
         
      47   1    0      0      0    0    1    1    0    12.66    1    1    0.90; 
        
      48   1    79     56.4   0    0    1    1    0    12.66    1    1    0.90; 
         
      49   1    384.7  274.5  0    0    1    1    0    12.66    1    1    0.90; 
        
      50   1    384.7  274.5  0    0    1    1    0    12.66    1    1    0.90; 
      51   1    40.5   28.3   0    0    1    1    0    12.66    1    1    0.90; 
         
      52   1    3.6    2.7    0    0    1    1    0    12.66    1    1    0.90; 
         
      53   1    4.35   3.5    0    0    1    1    0    12.66    1    1    0.90; 
         
      54   1    26.4   19     0    0    1    1    0    12.66    1    1    0.90; 
         
      55   1    24     17.2   0    0    1    1    0    12.66    1    1    0.90; 
        
      56   1    0      0      0    0    1    1    0    12.66    1    1    0.90; 
        
      57   1    0      0      0    0    1    1    0    12.66    1    1    0.90; 
        
      58   1    0      0      0    0    1    1    0    12.66    1    1    0.90; 
        
      59   1    100    72     0    0    1    1    0    12.66    1    1    0.90; 
         
      60   1    0      0      0    0    1    1    0    12.66    1    1    0.90; 
        
      61   1    1244   888    0    0    1    1    0    12.66    1    1    0.90; 
         
      62   1    32     23     0    0    1    1    0    12.66    1    1    0.90; 
         
      63   1    0      0      0    0    1    1    0    12.66    1    1    0.90;
      64   1    227    162    0    0    1    1    0    12.66    1    1    0.90; 
         
      65   1    59     42     0    0    1    1    0    12.66    1    1    0.90; 
         
      66   1    18     13     0    0    1    1    0    12.66    1    1    0.90; 
         
      67   1    18     13     0    0    1    1    0    12.66    1    1    0.90; 
        
      68   1    28     20     0    0    1    1    0    12.66    1    1    0.90; 
        
      69   1    28     20     0    0    1    1    0    12.66    1    1    0.90;
      ];
%% generator data
%       bus     Pg      Qg      Qmax    Qmin    Vg      mBase   status  Pmax    
Pmin    Pc1     Pc2     Qc1min  Qc1max  Qc2min  Qc2max  ramp_agc        ramp_10 
ramp_30 ramp_q  apf
mpc.gen = [
        1       0       0       0       0       1.00    100     1       0       
0       0       0       0       0       0       0       0       0       0       
0       0;
];
%% branch data
%       fbus    tbus    r       x       b       rateA   rateB   rateC   ratio   
angle   status  angmin  angmax
mpc.branch = [
            1      2     0.0005*0.624    0.0012*0.624   0       0       0       
0       0       0       1       -360    360;  
            2      3     0.0005*0.624    0.0012*0.624   0       0       0       
0       0       0       1       -360    360; 
            3      4     0.0015*0.624    0.0036*0.624   0       0       0       
0       0       0       1       -360    360;
            4      5     0.0251*0.624    0.0294*0.624   0       0       0       
0       0       0       1       -360    360; 
            5      6     0.366*0.624     0.1864*0.624   0       0       0       
0       0       0       1       -360    360;
            6      7     0.381*0.624     0.1941*0.624   0       0       0       
0       0       0       1       -360    360;
            7      8     0.0922*0.624    0.0470*0.624   0       0       0       
0       0       0       1       -360    360;
            8      9     0.0493*0.624    0.0251*0.624   0       0       0       
0       0       0       1       -360    360;
            9      10    0.8190*0.624    0.2707*0.624   0       0       0       
0       0       0       1       -360    360;
            10     11    0.1872*0.624    0.0619*0.624   0       0       0       
0       0       0       1       -360    360;
            11     12    0.7114*0.624    0.2351*0.624   0       0       0       
0       0       0       1       -360    360;
            12     13    1.03*0.624      0.34*0.624     0       0       0       
0       0       0       1       -360    360;
            13     14    1.044*0.624     0.345*0.624    0       0       0       
0       0       0       1       -360    360;
            14     15    1.0580*0.624    0.3496*0.624   0       0       0       
0       0       0       1       -360    360;
            15     16    0.1966*0.624    0.0650*0.624   0       0       0       
0       0       0       1       -360    360;
            16     17    0.3744*0.624    0.1238*0.624   0       0       0       
0       0       0       1       -360    360;
            17     18    0.0047*0.624    0.0016*0.624   0       0       0       
0       0       0       1       -360    360;
            18     19    0.3276*0.624    0.1083*0.624   0       0       0       
0       0       0       1       -360    360;
            19     20    0.2106*0.624    0.0690*0.624   0       0       0       
0       0       0       1       -360    360;
            20     21    0.3416*0.624    0.1129*0.624   0       0       0       
0       0       0       1       -360    360;
            21     22    0.0140*0.624    0.0046*0.624   0       0       0       
0       0       0       1       -360    360;
            22     23    0.1591*0.624    0.0526*0.624   0       0       0       
0       0       0       1       -360    360;
            23     24    0.3463*0.624    0.1145*0.624   0       0       0       
0       0       0       1       -360    360;
            24     25    0.7488*0.624    0.2475*0.624   0       0       0       
0       0       0       1       -360    360;
            25     26    0.3089*0.624    0.1021*0.624   0       0       0       
0       0       0       1       -360    360;
            26     27    0.1732*0.624    0.0572*0.624   0       0       0       
0       0       0       1       -360    360;
            3      28    0.0044*0.624    0.0108*0.624   0       0       0       
0       0       0       1       -360    360;
            28     29    0.0640*0.624    0.1565*0.624   0       0       0       
0       0       0       1       -360    360;
            29     30    0.3978*0.624    0.1315*0.624   0       0       0       
0       0       0       1       -360    360;
            30     31    0.0702*0.624    0.0232*0.624   0       0       0       
0       0       0       1       -360    360;
            31     32    0.3510*0.624    0.1160*0.624   0       0       0       
0       0       0       1       -360    360;
            32     33    0.8390*0.624    0.2816*0.624   0       0       0       
0       0       0       1       -360    360;   
            33     34    1.7080*0.624    0.5646*0.624   0       0       0       
0       0       0       1       -360    360;
            34     35    1.4740*0.624    0.4873*0.624   0       0       0       
0       0       0       1       -360    360;
            3      36    0.0044*0.624    0.0108*0.624   0       0       0       
0       0       0       1       -360    360;
            36     37    0.0640*0.624    0.1565*0.624   0       0       0       
0       0       0       1       -360    360;
            37     38    0.1053*0.624    0.1230*0.624   0       0       0       
0       0       0       1       -360    360;
            38     39    0.0304*0.624    0.0355*0.624   0       0       0       
0       0       0       1       -360    360;
            39     40    0.0018*0.624    0.0021*0.624   0       0       0       
0       0       0       1       -360    360;
            40     41    0.7283*0.624    0.8509*0.624   0       0       0       
0       0       0       1       -360    360;
            41     42    0.3100*0.624    0.3623*0.624   0       0       0       
0       0       0       1       -360    360;
            42     43    0.0410*0.624    0.0478*0.624   0       0       0       
0       0       0       1       -360    360;
            43     44    0.0092*0.624    0.0116*0.624   0       0       0       
0       0       0       1       -360    360;
            44     45    0.1089*0.624    0.1373*0.624   0       0       0       
0       0       0       1       -360    360;
            45     46    0.0009*0.624    0.0012*0.624   0       0       0       
0       0       0       1       -360    360;
            4      47    0.0034*0.624    0.0084*0.624   0       0       0       
0       0       0       1       -360    360;
            47     48    0.0851*0.624    0.2083*0.624   0       0       0       
0       0       0       1       -360    360;
            48     49    0.2898*0.624    0.7091*0.624   0       0       0       
0       0       0       1       -360    360;
            49     50    0.0822*0.624    0.2011*0.624   0       0       0       
0       0       0       1       -360    360;
            8      51    0.0928*0.624    0.0473*0.624   0       0       0       
0       0       0       1       -360    360;
            51     52    0.3319*0.624    0.1114*0.624   0       0       0       
0       0       0       1       -360    360;
            9      53    0.1740*0.624    0.0886*0.624   0       0       0       
0       0       0       1       -360    360;
            53     54    0.2030*0.624    0.1034*0.624   0       0       0       
0       0       0       1       -360    360;
            54     55    0.2842*0.624    0.1447*0.624   0       0       0       
0       0       0       1       -360    360;
            55     56    0.2813*0.624    0.1433*0.624   0       0       0       
0       0       0       1       -360    360;
            56     57    1.5900*0.624    0.5337*0.624   0       0       0       
0       0       0       1       -360    360;
            57     58    0.7837*0.624    0.2630*0.624   0       0       0       
0       0       0       1       -360    360;
            58     59    0.3042*0.624    0.1006*0.624   0       0       0       
0       0       0       1       -360    360;
            59     60    0.3861*0.624    0.1172*0.624   0       0       0       
0       0       0       1       -360    360;
            60     61    0.5075*0.624    0.2585*0.624   0       0       0       
0       0       0       1       -360    360;
            61     62    0.0974*0.624    0.0496*0.624   0       0       0       
0       0       0       1       -360    360;
            62     63    0.1450*0.624    0.0738*0.624   0       0       0       
0       0       0       1       -360    360;
            63     64    0.7105*0.624    0.3619*0.624   0       0       0       
0       0       0       1       -360    360;
            64     65    1.0410*0.624    0.5302*0.624   0       0       0       
0       0       0       1       -360    360;
            11     66    0.2012*0.624    0.0611*0.624   0       0       0       
0       0       0       1       -360    360;
            66     67    0.0047*0.624    0.0014*0.624   0       0       0       
0       0       0       1       -360    360;
            12     68    0.7394*0.624    0.2444*0.624   0       0       0       
0       0       0       1       -360    360;
            68     69    0.0047*0.624    0.0016*0.624   0       0       0       
0       0       0       1       -360    360;
            52     67    0.0047*0.624    0.0016*0.624   0       0       0       
0       0       0       1       -360    360;
            15     69    0.0047*0.624    0.0016*0.624   0       0       0       
0       0       0       1       -360    360;
            10     65    0.0047*0.624    0.0016*0.624   0       0       0       
0       0       0       1       -360    360;
            46     50    0.0047*0.624    0.0016*0.624   0       0       0       
0       0       0       1       -360    360;
            35     27    0.0047*0.624    0.0016*0.624   0       0       0       
0       0       0       1       -360    360;
            
];





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