ExcIEEEAC1A

Class Description

IEEE 421.5-2005 type AC1A model. The model represents the field-controlled alternator-rectifier excitation systems designated type AC1A. These excitation systems consist of an alternator main exciter with non-controlled rectifiers.
Reference: IEEE 421.5-2005, 6.1.

Attributes

Name Type Description
ka PU Voltage regulator gain (KA) (> 0). Typical value = 400.
kc PU Rectifier loading factor proportional to commutating reactance (KC) (>= 0). Typical value = 0,2.
kd PU Demagnetizing factor, a function of exciter alternator reactances (KD) (>= 0). Typical value = 0,38.
ke PU Exciter constant related to self-excited field (KE). Typical value = 1.
kf PU Excitation control system stabilizer gains (KF) (>= 0). Typical value = 0,03.
seve1 Float Exciter saturation function value at the corresponding exciter voltage, VE1, back of commutating reactance (SE[VE1]) (>= 0). Typical value = 0,1.
seve2 Float Exciter saturation function value at the corresponding exciter voltage, VE2, back of commutating reactance (SE[VE2]) (>= 0). Typical value = 0,03.
ta Seconds Voltage regulator time constant (TA) (> 0). Typical value = 0,02.
tb Seconds Voltage regulator time constant (TB) (>= 0). Typical value = 0.
tc Seconds Voltage regulator time constant (TC) (>= 0). Typical value = 0.
te Seconds Exciter time constant, integration rate associated with exciter control (TE) (> 0). Typical value = 0,8.
tf Seconds Excitation control system stabilizer time constant (TF) (> 0). Typical value = 1.
vamax PU Maximum voltage regulator output (VAMAX) (> 0). Typical value = 14,5.
vamin PU Minimum voltage regulator output (VAMIN) (< 0). Typical value = -14,5.
ve1 PU Exciter alternator output voltages back of commutating reactance at which saturation is defined (VE1) (> 0). Typical value = 4,18.
ve2 PU Exciter alternator output voltages back of commutating reactance at which saturation is defined (VE2) (> 0). Typical value = 3,14.
vrmax PU Maximum voltage regulator outputs (VRMAX) (> 0). Typical value = 6,03.
vrmin PU Minimum voltage regulator outputs (VRMIN) (< 0). Typical value = -5,43.

Relationships

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Leaf/Root class

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