ExcIEEEST4B
Class Description
IEEE 421.5-2005 type ST4B model. This model is a variation of the type ST3A model, with a proportional plus integral (PI) regulator block replacing the lag-lead regulator characteristic that is in the ST3A model. Both potential and compound source rectifier excitation systems are modelled. The PI regulator blocks have non-windup limits that are represented. The voltage regulator of this model is typically implemented digitally. Reference: IEEE 421.5-2005, 7.4.
Attributes
| Name | Type | Description |
|---|---|---|
| kc | PU | Rectifier loading factor proportional to commutating reactance (<i>K</i><i><sub>C</sub></i>) (>= 0). Typical value = 0,113. |
| kg | PU | Feedback gain constant of the inner loop field regulator (<i>K</i><i><sub>G</sub></i>) (>= 0). Typical value = 0. |
| ki | PU | Potential circuit gain coefficient (<i>K</i><i><sub>I</sub></i>) (>= 0). Typical value = 0. |
| kim | PU | Voltage regulator integral gain output (<i>K</i><i><sub>IM</sub></i>). Typical value = 0. |
| kir | PU | Voltage regulator integral gain (<i>K</i><i><sub>IR</sub></i>). Typical value = 10,75. |
| kp | PU | Potential circuit gain coefficient (<i>K</i><i><sub>P</sub></i>) (> 0). Typical value = 9,3. |
| kpm | PU | Voltage regulator proportional gain output (<i>K</i><i><sub>PM</sub></i>). Typical value = 1. |
| kpr | PU | Voltage regulator proportional gain (<i>K</i><i><sub>PR</sub></i>). Typical value = 10,75. |
| ta | Seconds | Voltage regulator time constant (<i>T</i><i><sub>A</sub></i>) (>= 0). Typical value = 0,02. |
| thetap | AngleDegrees | Potential circuit phase angle (<i>thetap</i>). Typical value = 0. |
| vbmax | PU | Maximum excitation voltage (<i>V</i><i><sub>BMax</sub></i>) (> 0). Typical value = 11,63. |
| vmmax | PU | Maximum inner loop output (<i>V</i><i><sub>MMax</sub></i>) (> ExcIEEEST4B.vmmin). Typical value = 99. |
| vmmin | PU | Minimum inner loop output (<i>V</i><i><sub>MMin</sub></i>) (< ExcIEEEST4B.vmmax). Typical value = -99. |
| vrmax | PU | Maximum voltage regulator output (<i>V</i><i><sub>RMAX</sub></i>) (> 0). Typical value = 1. |
| vrmin | PU | Minimum voltage regulator output (<i>V</i><i><sub>RMIN</sub></i>) (< 0). Typical value = -0,87. |
| xl | PU | Reactance associated with potential source (<i>X</i><i><sub>L</sub></i>) (>= 0). Typical value = 0,124. |
Relationships
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Associations
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