ExcDC3A
Class Description
Modified IEEE DC3A direct current commutator exciter with speed input, and deadband. DC old type 4.
Attributes
| Name | Type | Description |
|---|---|---|
| efd1 | PU | Exciter voltage at which exciter saturation is defined (<i>Efd</i><i><sub>1</sub></i>) (> 0). Typical value = 2,6. |
| efd2 | PU | Exciter voltage at which exciter saturation is defined (<i>Efd</i><i><sub>2</sub></i>) (> 0). Typical value = 3,45. |
| efdlim | Boolean | (<i>Efdlim</i>). true = exciter output limiter is active false = exciter output limiter not active. Typical value = true. |
| efdmax | PU | Maximum voltage exciter output limiter (<i>Efdmax</i>) (> ExcDC3A.efdmin). Typical value = 99. |
| efdmin | PU | Minimum voltage exciter output limiter (<i>Efdmin</i>) (< ExcDC3A.efdmax). Typical value = -99. |
| exclim | Boolean | (<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 not applied to integrator output. Typical value = true. |
| ke | PU | Exciter constant related to self-excited field (<i>Ke</i>). Typical value = 1. |
| kr | PU | Deadband (<i>Kr</i>). Typical value = 0. |
| ks | PU | Coefficient to allow different usage of the model-speed coefficient (<i>Ks</i>). Typical value = 0. |
| kv | PU | Fast raise/lower contact setting (<i>Kv</i>) (> 0). Typical value = 0,05. |
| seefd1 | Float | Exciter saturation function value at the corresponding exciter voltage, <i>Efd</i><i><sub>1</sub></i> (<i>Se[Efd</i><i><sub>1</sub></i><i>]</i>) (>= 0). Typical value = 0,1. |
| seefd2 | Float | Exciter saturation function value at the corresponding exciter voltage, <i>Efd</i><i><sub>2</sub></i> (<i>Se[Efd</i><i><sub>2</sub></i><i>]</i>) (>= 0). Typical value = 0,35. |
| te | Seconds | Exciter time constant, integration rate associated with exciter control (<i>Te</i>) (> 0). Typical value = 1,83. |
| trh | Seconds | Rheostat travel time (<i>Trh</i>) (> 0). Typical value = 20. |
| vrmax | PU | Maximum voltage regulator output (<i>Vrmax</i>) (> 0). Typical value = 5. |
| vrmin | PU | Minimum voltage regulator output (<i>Vrmin</i>) (<= 0). Typical value = 0. |
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