: Public Class
Created: |
02/02/2012 21:42:36 |
Modified: |
23/04/2012 09:23:35 |
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Project: |
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Author: |
pcha006 |
Version: |
1.0 |
Phase: |
1.0 |
Status: |
Proposed |
Complexity: |
Easy |
Difficulty: |
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Priority: |
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Multiplicity: |
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Advanced: |
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UUID: |
{5A5BF11A-2D01-4ab7-9F3E-6F9D0EBA1054} |
Appears In: |
ExcitationSystemDynamics |
The class represents IEEE Std 421.5-2005 type AC8B model. This model represents a PID voltage regulator with either a brushless exciter or dc exciter. The AVR in this model consists of PID control, with separate constants for the proportional (<b>K</b><b><sub>PR</sub></b>), integral (<b>K</b><b><sub>IR</sub></b>), and derivative (<b>K</b><b><sub>DR</sub></b>) gains. The representation of the brushless exciter (<b>T</b><b><sub>E</sub></b>, <b>K</b><b><sub>E</sub></b>, <b>S</b><b><sub>E</sub></b>, <b>K</b><b><sub>C</sub></b>, <b>K</b><b><sub>D</sub></b>) is similar to the model Type AC2A. The Type AC8B model can be used to represent static voltage regulators applied to brushless excitation systems. Digitally based voltage regulators feeding dc rotating main exciters can be represented with the AC Type AC8B model with the parameters <b>K</b><b><sub>C</sub></b> and <b>K</b><b><sub>D</sub></b> set to 0. For thyristor power stages fed from the generator terminals, the limits <b>V</b><b><sub>RMAX</sub></b> and <b>V</b><b><sub>RMIN</sub></b> should be a function of terminal voltage: <b>V</b><b><sub>T</sub></b> * <b>V</b><b><sub>RMAX</sub></b><sub> </sub>and <b>V</b><b><sub>T</sub></b> * <b>V</b><b><sub>RMIN</sub></b>.<br/> <br/><br/>Reference: IEEE Standard 421.5-2005 Section 6.8. <br/>
Attribute |
Public PU ka
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Details:
Alias: |
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Initial: |
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Stereotype: |
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Ordered: |
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Range: |
Range:0 to 1 |
Transient: |
False |
Derived: |
False |
IsID: |
False |
Notes:
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Voltage regulator gain (K<sub>A</sub>). Typical Value = 1.<br/>
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Public PU kc
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Details:
Alias: |
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Initial: |
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Stereotype: |
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Ordered: |
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Range: |
Range:0 to 1 |
Transient: |
False |
Derived: |
False |
IsID: |
False |
Notes:
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Rectifier loading factor proportional to commutating reactance (K<sub>C</sub>). Typical Value = 0.55.<br/>
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Public PU kd
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Details:
Alias: |
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Initial: |
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Stereotype: |
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Ordered: |
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Range: |
Range:0 to 1 |
Transient: |
False |
Derived: |
False |
IsID: |
False |
Notes:
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Demagnetizing factor, a function of exciter alternator reactances (K<sub>D</sub>). Typical Value = 1.1.<br/>
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Public PU kdr
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Details:
Alias: |
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Initial: |
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Stereotype: |
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Ordered: |
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Range: |
Range:0 to 1 |
Transient: |
False |
Derived: |
False |
IsID: |
False |
Notes:
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Voltage regulator derivative gain (K<sub>DR</sub>). Typical Value = 10.<br/>
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Public PU ke
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Details:
Alias: |
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Initial: |
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Stereotype: |
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Ordered: |
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Range: |
Range:0 to 1 |
Transient: |
False |
Derived: |
False |
IsID: |
False |
Notes:
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Exciter constant related to self-excited field (K<sub>E</sub>). Typical Value = 1.<br/>
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Public PU kir
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Details:
Alias: |
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Initial: |
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Stereotype: |
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Ordered: |
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Range: |
Range:0 to 1 |
Transient: |
False |
Derived: |
False |
IsID: |
False |
Notes:
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Voltage regulator integral gain (K<sub>IR</sub>). Typical Value = 5.<br/>
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Public PU kpr
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Details:
Alias: |
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Initial: |
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Stereotype: |
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Ordered: |
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Range: |
Range:0 to 1 |
Transient: |
False |
Derived: |
False |
IsID: |
False |
Notes:
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Voltage regulator proportional gain (K<sub>PR</sub>). Typical Value = 80.<br/>
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Public Float seve1
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Details:
Alias: |
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Initial: |
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Stereotype: |
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Ordered: |
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Range: |
Range:0 to 1 |
Transient: |
False |
Derived: |
False |
IsID: |
False |
Notes:
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Exciter saturation function value at the corresponding exciter voltage, V<sub>E1</sub>, back of commutating reactance (S<sub>E</sub>[V<sub>E1</sub>]). Typical Value = 0.3.<br/>
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Public Float seve2
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Details:
Alias: |
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Initial: |
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Stereotype: |
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Ordered: |
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Range: |
Range:0 to 1 |
Transient: |
False |
Derived: |
False |
IsID: |
False |
Notes:
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Exciter saturation function value at the corresponding exciter voltage, V<sub>E2</sub>, back of commutating reactance (S<sub>E</sub>[V<sub>E2</sub>]). Typical Value = 3.<br/>
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Public Seconds ta
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Details:
Alias: |
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Initial: |
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Stereotype: |
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Ordered: |
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Range: |
Range:0 to 1 |
Transient: |
False |
Derived: |
False |
IsID: |
False |
Notes:
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Voltage regulator time constant (T<sub>A</sub>). Typical Value = 0.<br/>
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Public Seconds tdr
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Details:
Alias: |
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Initial: |
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Stereotype: |
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Ordered: |
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Range: |
Range:0 to 1 |
Transient: |
False |
Derived: |
False |
IsID: |
False |
Notes:
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Lag time constant (T<sub>DR</sub>). Typical Value = 0.1.<br/>
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Public Seconds te
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Details:
Alias: |
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Initial: |
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Stereotype: |
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Ordered: |
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Range: |
Range:0 to 1 |
Transient: |
False |
Derived: |
False |
IsID: |
False |
Notes:
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Exciter time constant, integration rate associated with exciter control (T<sub>E</sub>). Typical Value = 1.2.<br/>
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Public PU ve1
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Details:
Alias: |
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Initial: |
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Stereotype: |
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Ordered: |
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Range: |
Range:0 to 1 |
Transient: |
False |
Derived: |
False |
IsID: |
False |
Notes:
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Exciter alternator output voltages back of commutating reactance at which saturation is defined (V<sub>E1</sub>) equals V<sub>EMAX</sub> (V<sub>E1</sub>). Typical Value = 6.5.<br/>
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Public PU ve2
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Details:
Alias: |
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Initial: |
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Stereotype: |
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Ordered: |
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Range: |
Range:0 to 1 |
Transient: |
False |
Derived: |
False |
IsID: |
False |
Notes:
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Exciter alternator output voltages back of commutating reactance at which saturation is defined (V<sub>E2</sub>). Typical Value = 9.<br/>
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Public PU vemin
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Details:
Alias: |
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Initial: |
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Stereotype: |
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Ordered: |
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Range: |
Range:0 to 1 |
Transient: |
False |
Derived: |
False |
IsID: |
False |
Notes:
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Minimum exciter voltage output (V<sub>EMIN</sub>). Typical Value = 0.<br/>
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Public PU vfemax
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Details:
Alias: |
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Initial: |
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Stereotype: |
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Ordered: |
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Range: |
Range:0 to 1 |
Transient: |
False |
Derived: |
False |
IsID: |
False |
Notes:
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Exciter field current limit reference (V<sub>FEMAX</sub>). Typical Value = 6.<br/>
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Public PU vrmax
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Details:
Alias: |
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Initial: |
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Stereotype: |
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Ordered: |
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Range: |
Range:0 to 1 |
Transient: |
False |
Derived: |
False |
IsID: |
False |
Notes:
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Maximum voltage regulator output (V<sub>RMAX</sub>). Typical Value = 35.<br/>
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Public PU vrmin
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Details:
Alias: |
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Initial: |
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Stereotype: |
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Ordered: |
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Range: |
Range:0 to 1 |
Transient: |
False |
Derived: |
False |
IsID: |
False |
Notes:
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Minimum voltage regulator output (V<sub>RMIN</sub>). Typical Value = 0.<br/>
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