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 | 1 | initial version |
For whatever reason, PSSE cannot calculate imbalance without line charging and/or line shunts on the line. Try adding small amounts B and B0 until you don't get the error. Adding 0.01 to charging (B and B0) and 0.001 to Line B To/From I was able to get it to produce some values with SPCB. It's very annoying and potentially not as accurate, but it's about all you can do to make it work.
ZERO SEQUENCE THEVENIN IMPEDANCE SUBMATRIX:
BUS 3001 [MINE 230.00] 3003 [S. MINE 230.00]
3001 ( 0.00022, 0.00960) ( 0.00006, 0.00210)
3003 ( 0.00006, 0.00210) ( 0.01334, 0.13911)
POS. SEQUENCE THEVENIN IMPEDANCE SUBMATRIX:
BUS 3001 [MINE 230.00] 3003 [S. MINE 230.00]
3001 ( 0.00201, 0.03119) ( 0.00210, 0.00731)
3003 ( 0.00210, 0.00731) ( 0.01003, 0.05125)
NEG. SEQUENCE THEVENIN IMPEDANCE SUBMATRIX:
BUS 3001 [MINE 230.00] 3003 [S. MINE 230.00]
3001 ( 0.00201, 0.03119) ( 0.00210, 0.00731)
3003 ( 0.00210, 0.00731) ( 0.01003, 0.05125)
PI EQUIVALENT Y MATRIX IS:
( 0.5319, -131.2263) ( 0.5319, 118.7678)
( 0.5319, 118.7678) ( 0.5319, -131.2263)
TO SIMULATE:
ONE PHASE GROUNDED WITH IMPEDANCE= 0.0000 +J 0.0000
50.0 PERCENT OF WAY DOWN LINE FROM 3001 [MINE 230.00]
FOR BRANCH FROM BUS 3001 [MINE 230.00] TO BUS 3003 [S. MINE 230.00] CIRCUIT 1
USE EQUIVALENT R+JX= ( -0.00004, 0.00842) B= 0.0
AT BUS 3001 [MINE 230.00] USE LINE CONNECTED SHUNT= ( 1.06378, -12.45846)
AT BUS 3003 [S. MINE 230.00] USE LINE CONNECTED SHUNT= ( 1.06378, -12.45846)
| | 2 | No.2 Revision |
For whatever reason, PSSE cannot calculate imbalance without line charging and/or line shunts on the line. Try adding small amounts B and B0 until you don't get the error. Adding 0.01 to charging (B and B0) and 0.001 to Line B To/From I was able to get it to produce some values with SPCB. It's very annoying and potentially not as accurate, but it's about all you can do to make it work.
ZERO SEQUENCE THEVENIN IMPEDANCE SUBMATRIX:
BUS 3001 [MINE 230.00] 3003 [S. MINE 230.00]
3001 ( 0.00022, 0.00960) ( 0.00006, 0.00210)
3003 ( 0.00006, 0.00210) ( 0.01334, 0.13911)
POS. SEQUENCE THEVENIN IMPEDANCE SUBMATRIX:
BUS 3001 [MINE 230.00] 3003 [S. MINE 230.00]
3001 ( 0.00201, 0.03119) ( 0.00210, 0.00731)
3003 ( 0.00210, 0.00731) ( 0.01003, 0.05125)
NEG. SEQUENCE THEVENIN IMPEDANCE SUBMATRIX:
BUS 3001 [MINE 230.00] 3003 [S. MINE 230.00]
3001 ( 0.00201, 0.03119) ( 0.00210, 0.00731)
3003 ( 0.00210, 0.00731) ( 0.01003, 0.05125)
PI EQUIVALENT Y MATRIX IS:
( 0.5319, -131.2263) ( 0.5319, 118.7678)
( 0.5319, 118.7678) ( 0.5319, -131.2263)
TO SIMULATE:
ONE PHASE GROUNDED WITH IMPEDANCE= 0.0000 +J 0.0000
50.0 PERCENT OF WAY DOWN LINE FROM 3001 [MINE 230.00]
FOR BRANCH FROM BUS 3001 [MINE 230.00] TO BUS 3003 [S. MINE 230.00] CIRCUIT 1
USE EQUIVALENT R+JX= ( -0.00004, 0.00842) B= 0.0
AT BUS 3001 [MINE 230.00] USE LINE CONNECTED SHUNT= ( 1.06378, -12.45846)
AT BUS 3003 [S. MINE 230.00] USE LINE CONNECTED SHUNT= ( 1.06378, -12.45846)
Here is the modified line data:
3001, 3003,'1 ', 0.00000E+0, 8.00000E-3, 0.01000, 0.00, 0.00, 1.00, 0.00000, 0.00100, 0.00000, 0.00100,0,1, 0.00, 55,1.0000
