SEEKS INPUT DATA FILE FORMAT



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SYSTEM-BASE     (system mva base)

BUS# 'NAME' KV PLOAD QLOAD GSHUNT BSHUNT VOLTAGE ANGLE

terminate bus data with a ZERO at the beginning of a line



BUS# ID PGEN QGEN QMIN QMAX MVAGEN PMIN PMAX VOLTSET STATUS

terminate generator data with a ZERO at the beginning of a line



FROM# TO# ID RLINE XLINE GFROM BFROM GTO BTO STATUS RATING

terminate line data with a ZERO at the beginning of a line



(Note : At least one slack bus must be present to solve a power flow.

        Specify slack units by setting their status to -1.)





----------- table of values ----------------------------------------------

-name-       -default-         -description-------------------------------



SYSTEMBASE   1.0               system mva base (now MUST BE 1.0)



BUS#         none              bus number from 1 to max (now 100)

'NAME'       ' '               an integer bus name in quotes

KV           100.0             bus rated kv

PLOAD        0.0               constant MW bus load (now in per unit)

QLOAD        0.0               constant MVAR bus load (now in per unit)

GSHUNT       0.0               constant admittance shunt in MW   at 1.0 voltage

BSHUNT       0.0               constant admittance shunt in MVAR at 1.0 voltage

VOLTAGE      1.0               bus voltage magnitude in per unit

ANGLE        0.0               bus voltage angle in degrees



BUS#         none              bus number from 1 to max (now 100)

IDGEN        '1'               generator unit identifier

PGEN         0.0               generator MW output (now in per unit)

QGEN         0.0               generator MVAR output (now in per unit)

QMIN         -9999.0           generator MVAR minimum for voltage regulation

QMAX          9999.0           generator MVAR maximum for voltage regulation

MVAGEN       100.0             generator rated MVA

PMIN         0.0               generator MW minimum (for reference only)

PMAX         MVAGEN            generator MW maximum (for reference only)

VOLTSET      1.0               generator schedule voltage at its own bus

STATUS       1                 generator status (0=off,1=on,-1=slack unit)



FROM#        none              line from bus number

TO#          none              line to   bus number

IDLINE       '1'               line circuit identifier

RLINE        0.0               line resistance in per unit (now 0.0)

XLINE        1.0               line reactance in per unit

GFROM        0.0               line charging MW on from bus end in per unit

BFROM        0.0               line charging MVAR on from bus end in per unit

GTO          0.0               line charging MW on to bus end in per unit

BTO          0.0               line charging MVAR on to bus end in per unit

STATUS       1                 line status (0=out,1=in)

RATING       99*systembase     mva rating of the transmission line ( now 99 )



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Hao Li

February, 2000