how to find largest mismatch and total mismatch of P and Q after a load flow solution through python?

answered Feb 17 '14

SC
30 ●5 ●5 ●10

psspy.maxmsm()

maxmsm() Use this API to return the complex bus mismatch at the bus with the largest MVA mismatch.

Python syntax:

ierr, ibus, cmpval = maxmsm()

where:


Integer IBUS  Bus number of the bus with the largest MVA mismatch (output).
Real P  Real component (MW) of the bus mismatch (output).
Real Q  Reactive component (Mvar) of the bus mismatch (output).
Complex CMPVAL  Complex bus mismatch (output).
Integer IERR  Is the error code (output):
IERR = 0 No error; 'IBUS', and 'P' and 'Q' or 'CMPVAL' returned.
IERR = 1 No in-service buses found; 'IBUS' of 0, and 'P' and 'Q' of 0.0 or 'CMPVAL' of (0.0,0.0) returned.

psspy.busmsm()

busmsm(ibus=None) Use this API to return complex bus mismatch.

Python syntax:

ierr, cmpval = busmsm(ibus)

where:


Integer IBUS  Bus number (input).
Real P  Real component (MW) of the bus mismatch (output).
Real Q  Reactive component (Mvar) of the bus mismatch (output).
Complex CMPVAL  Complex bus mismatch (output).
Integer IERR  Is the error code (output):
IERR = 0 No error; 'P' and 'Q' or 'CMPVAL' returned.
IERR = 1 Bus not found; 'P' and 'Q' or 'CMPVAL' unchanged.
IERR = 2 Bus type code greater than 4; 'P' and 'Q' or 'CMPVAL' returned set to zero.

psspy.sysmsm()

sysmsm() Use this API to return the total system MVA mismatch.

Python syntax:

mva = sysmsm()

where:


Real MVA  Total system MVA mismatch (output).