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The CLODxx model does not converge in initialization

asked 2020-02-27 16:24:56 -0500

Gary22212 gravatar image

updated 2020-02-27 16:29:13 -0500

Hi All,

Thanks for reading the question.

I am testing the composite model in IEEE 9 bus system, while the CLODxx model is not converged when I initialize it for transient simulation. The case works fine without the dynamic load model (i.e., just convert the load to ZIP before running the transient simulation). I don't know what is wrong with my case.

I really appreciate if you give me some suggestions. My raw file and dyr files are pasted below, you are welcome to try.

raw file:

    0,   100.00, 32, 0, 1, 60.00     / PSS(R)E-32.2    MON, DEC 08 2014  17:27
    IEEE 9 BUS CASE - 3G - 3L

         1,'BUS1        ',  16.5000,3,   1,   1,   1,1.04000,   0.0000
         2,'BUS2        ',  18.0000,2,   2,   2,   1,1.02500,   9.2800
         3,'BUS3        ',  13.8000,2,   2,   3,   1,1.02500,   4.6648
         4,'BUS4        ', 230.0000,1,   1,   1,   1,1.02579,  -2.2168
         5,'BUS5        ', 230.0000,1,   1,   4,   2,0.99563,  -3.9888
         6,'BUS6        ', 230.0000,1,   1,   5,   2,1.01265,  -3.6874
         7,'BUS7        ', 230.0000,1,   2,   2,   1,1.02577,   3.7197
         8,'BUS8        ', 230.0000,1,   2,   6,   2,1.01588,   0.7275
         9,'BUS9        ', 230.0000,1,   2,   3,   1,1.03235,   1.9667
    0 / END OF BUS DATA, BEGIN LOAD DATA
         5,'1 ',1,   1,   1,   125.000,    50.000,     0.000,     0.000,     0.000,     0.000,   1,1
         6,'1 ',1,   1,   1,    90.000,    30.000,     0.000,     0.000,     0.000,     0.000,   1,1
         8,'1 ',1,   1,   1,   100.000,    35.000,     0.000,     0.000,     0.000,     0.000,   1,1
    0 / END OF LOAD DATA, BEGIN FIXED SHUNT DATA
    0 / END OF FIXED SHUNT DATA, BEGIN GENERATOR DATA
         1,'1 ',    71.641,    27.046,   300.000,  -300.000,1.04000,     0,   260.000, 1.00000E-4, 1.00000E-1, 0.00000E+0, 0.00000E+0,1.00000,1,  100.0,   250.000,    10.000,   1,1.0000
         2,'1 ',   163.000,     6.654,   300.000,  -300.000,1.02500,     0,   310.000, 1.00000E-4, 2.10000E-1, 0.00000E+0, 0.00000E+0,1.00000,1,  100.0,   300.000,    10.000,   1,1.0000
         3,'1 ',    85.000,   -10.860,   300.000,  -300.000,1.02500,     0,   280.000, 1.00000E-4, 2.10000E-1, 0.00000E+0, 0.00000E+0,1.00000,1,  100.0,   270.000,    10.000,   1,1.0000
    0 / END OF GENERATOR DATA, BEGIN BRANCH DATA
         4,     5,'1 ', 1.00000E-2, 8.50000E-2,   0.17600,  250.00,  250.00,  250.00,  0.00000,  0.00000,  0.00000,  0.00000,1,1,   0.00,   1,1.0000
         4,     6,'1 ', 1.70000E-2, 9.20000E-2,   0.15800,  250.00,  250.00,  250.00,  0.00000,  0.00000,  0.00000,  0.00000,1,1,   0.00,   1,1.0000
         5,     7,'1 ', 3.20000E-2, 1.61000E-1,   0.30600,  250.00,  250.00,  250.00,  0.00000 ...
(more)
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answered 2020-02-28 00:15:22 -0500

perolofl gravatar image

updated 2020-03-02 04:47:59 -0500

The parameter Branch X is too high in model CLODAL. It will work if you reduce to e.g. 0.1.

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Yes, it works after the reduction. Thank for very much!

Gary22212 gravatar imageGary22212 ( 2020-02-28 10:16:56 -0500 )edit

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Asked: 2020-02-27 16:24:56 -0500

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Last updated: Mar 02