ExcIEEEST5B
Class Description
IEEE 421.5-2005 type ST5B model. The type ST5B excitation system is a variation of the type ST1A model, with alternative overexcitation and underexcitation inputs and additional limits. The block diagram in the IEEE 421.5 standard has input signal <i>Vc </i>and does not indicate the summation point with <i>Vref</i>. The implementation of the ExcIEEEST5B shall consider summation point with <i>Vref</i>. Reference: IEEE 421.5-2005, 7.5.
Attributes
| Name | Type | Description |
|---|---|---|
| kc | PU | Rectifier regulation factor (<i>K</i><i><sub>C</sub></i>) (>= 0). Typical value = 0,004. |
| kr | PU | Regulator gain (<i>K</i><i><sub>R</sub></i>) (> 0). Typical value = 200. |
| t1 | Seconds | Firing circuit time constant (<i>T1</i>) (>= 0). Typical value = 0,004. |
| tb1 | Seconds | Regulator lag time constant (<i>T</i><i><sub>B1</sub></i>) (>= 0). Typical value = 6. |
| tb2 | Seconds | Regulator lag time constant (<i>T</i><i><sub>B2</sub></i>) (>= 0). Typical value = 0,01. |
| tc1 | Seconds | Regulator lead time constant (<i>T</i><i><sub>C1</sub></i>) (>= 0). Typical value = 0,8. |
| tc2 | Seconds | Regulator lead time constant (<i>T</i><i><sub>C2</sub></i>) (>= 0). Typical value = 0,08. |
| tob1 | Seconds | OEL lag time constant (<i>T</i><i><sub>OB1</sub></i>) (>= 0). Typical value = 2. |
| tob2 | Seconds | OEL lag time constant (<i>T</i><i><sub>OB2</sub></i>) (>= 0). Typical value = 0,08. |
| toc1 | Seconds | OEL lead time constant (<i>T</i><i><sub>OC1</sub></i>) (>= 0). Typical value = 0,1. |
| toc2 | Seconds | OEL lead time constant (<i>T</i><i><sub>OC2</sub></i>) (>= 0). Typical value = 0,08. |
| tub1 | Seconds | UEL lag time constant (<i>T</i><i><sub>UB1</sub></i>) (>= 0). Typical value = 10. |
| tub2 | Seconds | UEL lag time constant (<i>T</i><i><sub>UB2</sub></i>) (>= 0). Typical value = 0,05. |
| tuc1 | Seconds | UEL lead time constant (<i>T</i><i><sub>UC1</sub></i>) (>= 0). Typical value = 2. |
| tuc2 | Seconds | UEL lead time constant (<i>T</i><i><sub>UC2</sub></i>) (>= 0). Typical value = 0,1. |
| vrmax | PU | Maximum voltage regulator output (<i>V</i><i><sub>RMAX</sub></i>) (> 0). Typical value = 5. |
| vrmin | PU | Minimum voltage regulator output (<i>V</i><i><sub>RMIN</sub></i>) (< 0). Typical value = -4. |
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