ExcAC2A
Class Description
Modified IEEE AC2A alternator-supplied rectifier excitation system with different field current limit.
Attributes
| Name | Type | Description |
|---|---|---|
| hvgate | Boolean | Indicates if HV gate is active (<i>HVgate</i>). true = gate is used false = gate is not used. Typical value = true. |
| ka | PU | Voltage regulator gain (<i>Ka</i>) (> 0). Typical value = 400. |
| kb | PU | Second stage regulator gain (<i>Kb</i>) (> 0). Exciter field current controller gain. Typical value = 25. |
| kb1 | PU | Second stage regulator gain (<i>Kb1</i>). It is exciter field current controller gain used as alternative to <i>Kb</i> to represent a variant of the ExcAC2A model. Typical value = 25. |
| kc | PU | Rectifier loading factor proportional to commutating reactance (<i>Kc</i>) (>= 0). Typical value = 0,28. |
| kd | PU | Demagnetizing factor, a function of exciter alternator reactances (<i>Kd</i>) (>= 0). Typical value = 0,35. |
| ke | PU | Exciter constant related to self-excited field (<i>Ke</i>). Typical value = 1. |
| kf | PU | Excitation control system stabilizer gains (<i>Kf</i>) (>= 0). Typical value = 0,03. |
| kh | PU | Exciter field current feedback gain (<i>Kh</i>) (>= 0). Typical value = 1. |
| kl | PU | Exciter field current limiter gain (<i>Kl</i>). Typical value = 10. |
| kl1 | PU | Coefficient to allow different usage of the model (<i>Kl1</i>). Typical value = 1. |
| ks | PU | Coefficient to allow different usage of the model-speed coefficient (<i>Ks</i>) (>= 0). Typical value = 0. |
| lvgate | Boolean | Indicates if LV gate is active (<i>LVgate</i>). true = gate is used false = gate is not used. Typical value = true. |
| seve1 | Float | Exciter saturation function value at the corresponding exciter voltage, <i>Ve</i><i><sub>1</sub></i>, back of commutating reactance (<i>Se[Ve</i><i><sub>1</sub></i><i>]</i>) (>= 0). Typical value = 0,037. |
| seve2 | Float | Exciter saturation function value at the corresponding exciter voltage, <i>Ve</i><i><sub>2</sub></i>, back of commutating reactance (<i>Se[Ve</i><i><sub>2</sub></i><i>]</i>) (>= 0). Typical value = 0,012. |
| ta | Seconds | Voltage regulator time constant (<i>Ta</i>) (> 0). Typical value = 0,02. |
| tb | Seconds | Voltage regulator time constant (<i>Tb</i>) (>= 0). Typical value = 0. |
| tc | Seconds | Voltage regulator time constant (<i>Tc</i>) (>= 0). Typical value = 0. |
| te | Seconds | Exciter time constant, integration rate associated with exciter control (<i>Te</i>) (> 0). Typical value = 0,6. |
| tf | Seconds | Excitation control system stabilizer time constant (<i>Tf</i>) (> 0). Typical value = 1. |
| vamax | PU | Maximum voltage regulator output (<i>Vamax</i>) (> 0). Typical value = 8. |
| vamin | PU | Minimum voltage regulator output (<i>Vamin</i>) (< 0). Typical value = -8. |
| ve1 | PU | Exciter alternator output voltages back of commutating reactance at which saturation is defined (<i>Ve</i><i><sub>1</sub></i>) (> 0). Typical value = 4,4. |
| ve2 | PU | Exciter alternator output voltages back of commutating reactance at which saturation is defined (<i>Ve</i><i><sub>2</sub></i>) (> 0). Typical value = 3,3. |
| vfemax | PU | Exciter field current limit reference (<i>Vfemax</i>) (>= 0). Typical value = 4,4. |
| vlr | PU | Maximum exciter field current (<i>Vlr</i>) (> 0). Typical value = 4,4. |
| vrmax | PU | Maximum voltage regulator outputs (<i>Vrmax</i>) (> 0). Typical value = 105. |
| vrmin | PU | Minimum voltage regulator outputs (<i>Vrmin</i>) (< 0). Typical value = -95. |
Relationships
Ancestors
Descendents
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Associations
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