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ExcDC1A

Class Description​

Modified IEEE DC1A direct current commutator exciter with speed input and without underexcitation limiters (UEL) inputs.

Attributes​

NameTypeDescription
efd1PUExciter voltage at which exciter saturation is defined (<i>Efd</i><i><sub>1</sub></i>) (> 0). Typical value = 3,1.
efd2PUExciter voltage at which exciter saturation is defined (<i>Efd</i><i><sub>2</sub></i>) (> 0). Typical value = 2,3.
efdmaxPUMaximum voltage exciter output limiter (<i>Efdmax</i>) (> ExcDC1A.efdmin). Typical value = 99.
efdminPUMinimum voltage exciter output limiter (<i>Efdmin</i>) (< ExcDC1A.edfmax). Typical value = -99.
exclimBoolean(<i>exclim</i>). IEEE standard is ambiguous about lower limit on exciter output.
true = a lower limit of zero is applied to integrator output
false = a lower limit of zero is not applied to integrator output.
Typical value = true.
kaPUVoltage regulator gain (<i>Ka</i>) (> 0). Typical value = 46.
kePUExciter constant related to self-excited field (<i>Ke</i>). Typical value = 0.
kfPUExcitation control system stabilizer gain (<i>Kf</i>) (>= 0). Typical value = 0,1.
ksPUCoefficient to allow different usage of the model-speed coefficient (<i>Ks</i>). Typical value = 0.
seefd1FloatExciter saturation function value at the corresponding exciter voltage, <i>Efd</i><i><sub>1</sub></i> (<i>Se[Eefd</i><i><sub>1</sub></i><i>]</i>) (>= 0). Typical value = 0,33.
seefd2FloatExciter saturation function value at the corresponding exciter voltage, <i>Efd</i><i><sub>2</sub></i> (<i>Se[Eefd</i><i><sub>2</sub></i><i>]</i>) (>= 0). Typical value = 0,1.
taSecondsVoltage regulator time constant (<i>Ta</i>) (> 0). Typical value = 0,06.
tbSecondsVoltage regulator time constant (<i>Tb</i>) (>= 0). Typical value = 0.
tcSecondsVoltage regulator time constant (<i>Tc</i>) (>= 0). Typical value = 0.
teSecondsExciter time constant, integration rate associated with exciter control (<i>Te</i>) (> 0). Typical value = 0,46.
tfSecondsExcitation control system stabilizer time constant (<i>Tf</i>) (> 0). Typical value = 1.
vrmaxPUMaximum voltage regulator output (<i>Vrmax</i>) (> ExcDC1A.vrmin). Typical value = 1.
vrminPUMinimum voltage regulator output (<i>Vrmin</i>) (< 0 and < ExcDC1A.vrmax). Typical value = -0,9.

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