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====================
Load flow solved in 9 iterations
Contingency CC42
====================
** Solution diverged after 78 iterations **
>> Shunt control was not effective. Switching one more block
>> Shunt control was not effective. The last shunt block is switched.
>> Adjusting switchable shunts
Bus # Bus name SWS ID delt-B Sensit. B-max B B-min
1943 B1943 25.2 1.20 0.330 4.80 1.20 0.00
>> Shunt block is small. Switching more blocks
Bus # Bus name SWS ID delt-B Sensit. B-max B B-min
1943 B1943 25.2 2.40 0.330 4.80 2.40 0.00
>> Checking voltage violations
Pre-contingency
===============
Load flow solved in 2 iterations
Contingency CC41
====================
Load flow solved in 8 iterations
Contingency CC42
====================
Load flow solved in 9 iterations
Contingency CC81
====================
Load flow solved in 9 iterations
Contingency CC82
====================
Load flow solved in 9 iterations
Contingency CC87
====================
Load flow solved in 7 iterations
Contingency A 4
====================
Load flow solved in 9 iterations
Contingency A 8
====================
Load flow solved in 9 iterations
Pre-contingency
===============
Load flow solved in 6 iterations
Contingency CC41
====================
Load flow solved in 9 iterations
Contingency CC42
====================
** Solution diverged after 72 iterations **
>> Shunt control was not effective. Switching one more block
Bus # Bus name SWS ID delt-B Sensit. B-max B B-min
1943 B1943 25.2 3.60 0.330 4.80 3.60 0.00
>> Checking voltage violations
Pre-contingency
===============
Load flow solved in 3 iterations
Contingency CC41
====================
Load flow solved in 8 iterations
Contingency CC42
====================
Load flow solved in 9 iterations
Contingency CC81
====================
Load flow solved in 9 iterations
Contingency CC82
====================
Load flow solved in 9 iterations
Contingency CC87
====================
Load flow solved in 6 iterations
Contingency A 4
====================
Load flow solved in 9 iterations
Contingency A 8
====================
Load flow solved in 9 iterations
Pre-contingency
===============
Load flow solved in 6 iterations
Contingency CC41
====================
Load flow solved in 9 iterations
Contingency CC42
====================
Load flow solved in 49 iterations
Contingency CC81
====================
Load flow solved in 16 iterations
Contingency CC82
====================
Load flow solved in 23 iterations
Contingency CC87
====================
Load flow solved in 7 iterations
Contingency A 4
====================
Load flow solved in 30 iterations
Contingency A 8
====================
Load flow solved in 24 iterations
Stress level: 68.25 %
Pre-contingency
===============
Load flow solved in 7 iterations
Contingency CC41
====================
Load flow solved in 9 iterations
Contingency CC42
====================
** Solution diverged after 35 iterations **
>> Switchable shunt control was effective in increasing the stability margin
>> Computing the sensitivities at Stress level: 63.25 %
Pre-contingency
===============
Load flow solved in 8 iterations
Contingency CC42
====================
Load flow solved in 54 iterations
>> Computing the sensitivities at Stress level: 58.25 %
Pre-contingency
===============
Load flow solved in 6 iterations
Contingency CC42
====================
Load flow solved in 17 iterations
>> Adjusting switchable shunts
Bus # Bus name SWS ID delt-B Sensit. B-max B B-min
1906 B1906 25.2 1.80 0.335 3.00 1.80 0.00
>> Shunt block is small. Switching more blocks
Bus # Bus name SWS ID delt-B Sensit. B-max B B-min
1906 B1906 25.2 3.00 0.335 3.00 3.00 0.00
>> Checking voltage violations
Pre-contingency
===============
Load flow solved in 2 iterations
Contingency CC41
====================
Load flow solved in 8 iterations
Contingency CC42
====================
Load flow solved in 9 iterations
Contingency CC81
====================
Load flow solved in 9 iterations
Contingency CC82
====================
Load flow solved in 9 iterations
Contingency CC87
====================
Load flow solved in 6 iterations
Contingency A 4
====================
Load flow solved in 9 iterations
Contingency A 8
====================
Load flow solved in 9 iterations
Pre-contingency
===============
Load flow solved in 7 iterations
Contingency CC41
====================
Load flow solved in 9 iterations
Contingency CC42
====================
** Solution diverged after 38 iterations **
>> Shunt control was not effective. Switching one more block
>> Shunt control was not effective. The last shunt block is switched.
>> Adjusting switchable shunts
Bus # Bus name SWS ID delt-B Sensit. B-max B B-min
1943 B1943 25.2 1.20 0.334 4.80 4.80 0.00
>> Checking voltage violations
Pre-contingency
===============
Load flow solved in 2 iterations
Contingency CC41
====================
Load flow solved in 8 iterations
Contingency CC42
====================
Load flow solved in 9 iterations
Contingency CC81
====================
Load flow solved in 9 iterations
Contingency CC82
====================
Load flow solved in 9 iterations
Contingency CC87
====================
Load flow solved in 6 iterations
Contingency A 4
====================
Load flow solved in 9 iterations
Contingency A 8
====================
Load flow solved in 9 iterations
Pre-contingency
===============
Load flow solved in 7 iterations
Contingency CC41
====================
Load flow solved in 9 iterations
Contingency CC42
====================
** Solution diverged after 39 iterations **
>> Shunt control was not effective. Switching one more block
>> Shunt control was not effective. The last shunt block is switched.
>> Stability margin is increased to 63.25 %
>> Controls are not enough to remove post-contingency stability margin violations
>> Preventive control was not successful for all contingencies
>> Preventive control for pre-contigency case only
>> Removing pre-contingency stability margin violation
>> Stress level: 102.00 %
Pre-contingency
===============
Load flow solved in 9 iterations
>> Controls succeeded in removing pre-contingency stability margin violation
>> Removing pre-contingency VAr reserve violations
Pre-contingency
===============
Load flow solved in 2 iterations
>> Preventive control is completed for pre-contingency case only
All pre-contingency violations are removed
<< Preventive controls >>
Device Device ID Controlled Pre-Value New-Value Det-Value Top-limit Bottom-limit
Controlled for
---------------------------------------------------------------------------------------------------------------------
Shunt 1966 B1966 25.2 Admittance 10.8000 13.2000 2.4000 13.2000 0.0000
CTG:CC42 VS Margins
Shunt 1863 B1863 12.6 Admittance 1.8000 11.4000 9.6000 11.4000 0.0000
CTG:CC42 VS Margins
Shunt 1959 B1959 25.2 Admittance 0.0000 3.0000 3.0000 3.0000 0.0000
CTG:CC42 VS Margins
Shunt 1816 B1816 12.6 Admittance 0.0000 19.2000 19.2000 19.2000 0.0000
CTG:CC42 VS Margins
Shunt 1918 B1918 25.2 Admittance 0.0000 7.2000 7.2000 12.0000 0.0000
CTG:CC42 VS Margins
Shunt 1918 B1918 25.2 Admittance 7.2000 9.6000 2.4000 12.0000 0.0000
CTG:A 4 VS Margins
Shunt 1918 B1918 25.2 Admittance 9.6000 12.0000 2.4000 12.0000 0.0000
CTG:CC42 VS Margins
Shunt 1915 B1915 25.2 Admittance 0.0000 5.4000 5.4000 5.4000 0.0000
CTG:CC42 VS Margins
Shunt 1970 B1970 25.2 Admittance 0.0000 4.8000 4.8000 4.8000 0.0000
CTG:CC42 VS Margins
Shunt 1971 B1971 25.2 Admittance 0.0000 4.2000 4.2000 4.2000 0.0000
CTG:CC42 VS Margins
Shunt 1839 B1839 12.6 Admittance 0.0000 8.7000 8.7000 8.7000 0.0000
CTG:CC42 VS Margins
Shunt 1943 B1943 25.2 Admittance 0.0000 3.6000 3.6000 4.8000 0.0000
CTG:CC42 VS Margins
Shunt 1906 B1906 25.2 Admittance 0.0000 3.0000 3.0000 3.0000 0.0000
CTG:CC42 VS Margins
Shunt 1943 B1943 25.2 Admittance 3.6000 4.8000 1.2000 4.8000 0.0000
CTG:CC42 VS Margins
>> Starting Corrective Control
>> Corrective control for post-contingency stability
>> Correcting contingency CC41
>> Continuation parameter: -0.00300
Contingency CC41
====================
Load flow solved in 8 iterations
>> Control succeeded in solving contingency before stress
>> Correcting voltage violations
Pre-contingency
===============
Load flow solved in 2 iterations
Contingency CC41
====================
Load flow solved in 8 iterations
>> Controls succeeded in removing voltage violations
>> Correcting stability margin violation
>> Stress level: 102.00 %
Pre-contingency
===============
Load flow solved in 9 iterations
Contingency CC41
====================
Load flow solved in 13 iterations
>> Control succeeded in removing stability margin violation
>> Correcting VAr reserve violations
Pre-contingency
===============
Load flow solved in 2 iterations
Contingency CC41
====================
Load flow solved in 8 iterations
>> Corrective control is completed for this contingency
All violations of this contingency are removed
<< Corrective control >>
Contingency: CC41
There is no violation
>> Correcting conti⌨️ 快捷键说明
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