ExcIEEEDC4B
Class Description
IEEE 421.5-2005 type DC4B model. These excitation systems utilize a field-controlled DC commutator exciter with a continuously acting voltage regulator having supplies obtained from the generator or auxiliary bus. Reference: IEEE 421.5-2005, 5.4.
Attributes
| Name | Type | Description |
|---|---|---|
| efd1 | PU | Exciter voltage at which exciter saturation is defined (<i>E</i><i><sub>FD1</sub></i>) (> 0). Typical value = 1,75. |
| efd2 | PU | Exciter voltage at which exciter saturation is defined (<i>E</i><i><sub>FD2</sub></i>) (> 0). Typical value = 2,33. |
| ka | PU | Voltage regulator gain (<i>K</i><i><sub>A</sub></i>) (> 0). Typical value = 1. |
| kd | PU | Regulator derivative gain (<i>K</i><i><sub>D</sub></i>) (>= 0). Typical value = 20. |
| ke | PU | Exciter constant related to self-excited field (<i>K</i><i><sub>E</sub></i>). Typical value = 1. |
| kf | PU | Excitation control system stabilizer gain (<i>K</i><i><sub>F</sub></i>) (>= 0). Typical value = 0. |
| ki | PU | Regulator integral gain (<i>K</i><i><sub>I</sub></i>) (>= 0). Typical value = 20. |
| kp | PU | Regulator proportional gain (<i>K</i><i><sub>P</sub></i>) (>= 0). Typical value = 20. |
| oelin | Boolean | OEL input (<i>OELin</i>). true = LV gate false = subtract from error signal. Typical value = true. |
| seefd1 | Float | Exciter saturation function value at the corresponding exciter voltage, <i>E</i><i><sub>FD1</sub></i> (<i>S</i><i><sub>E</sub></i><i>[E</i><i><sub>FD1</sub></i><i>]</i>) (>= 0). Typical value = 0,08. |
| seefd2 | Float | Exciter saturation function value at the corresponding exciter voltage, <i>E</i><i><sub>FD2</sub></i> (<i>S</i><i><sub>E</sub></i><i>[E</i><i><sub>FD2</sub></i><i>]</i>) (>= 0). Typical value = 0,27. |
| ta | Seconds | Voltage regulator time constant (<i>T</i><i><sub>A</sub></i>) (> 0). Typical value = 0,2. |
| td | Seconds | Regulator derivative filter time constant (<i>T</i><i><sub>D</sub></i>) (> 0 if ExcIEEEDC4B.kd > 0). Typical value = 0,01. |
| te | Seconds | Exciter time constant, integration rate associated with exciter control (<i>T</i><i><sub>E</sub></i>) (> 0). Typical value = 0,8. |
| tf | Seconds | Excitation control system stabilizer time constant (<i>T</i><i><sub>F</sub></i>) (>= 0). Typical value = 1. |
| uelin | Boolean | UEL input (<i>UELin</i>). true = HV gate false = add to error signal. Typical value = true. |
| vemin | PU | Minimum exciter voltage output (<i>V</i><i><sub>EMIN</sub></i>) (<= 0). Typical value = 0. |
| vrmax | PU | Maximum voltage regulator output (<i>V</i><i><sub>RMAX</sub></i>) (> ExcIEEEDC4B.vrmin). Typical value = 2,7. |
| vrmin | PU | Minimum voltage regulator output (<i>V</i><i><sub>RMIN</sub></i>) (<= 0 and < ExcIEEEDC4B.vrmax). Typical value = -0,9. |
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