: Public Class
Created: 02/03/2012 09:15:51 AM
Modified: 06/24/2012 03:35:12 PM
Project:
Advanced:
The class represents IEEE Std 421.5-2005 type DC3A model. This model represents represent older systems, in particular those dc commutator exciters with non-continuously acting regulators that were commonly used before the development of the continuously acting varieties.  These systems respond at basically two different rates, depending upon the magnitude of voltage error. For small errors, adjustment is made periodically with a signal to a motor-operated rheostat. Larger errors cause resistors to be quickly shorted or inserted and a strong forcing signal applied to the exciter. Continuous motion of the motor-operated rheostat occurs for these larger error signals, even though it is bypassed by contactor action.<br /></p><p><br /></p><p><br /></p><p>Reference: IEEE Standard 421.5-2005 Section 5.3. <br /></p>
Attribute
Public <a href="../../../EA1/EA66.htm">PU</a>
  efd1

Details:
GUIDBasedOn={A477E4ED-AFDB-404d-A7B7-1B3246698C9A}
Notes: Exciter voltage at which exciter saturation is defined (E<sub>FD1</sub>).
Public <a href="../../../EA1/EA66.htm">PU</a>
  efd2

Details:
GUIDBasedOn={DEE62C44-4D77-4723-B494-C38F2859115B}
Notes: Exciter voltage at which exciter saturation is defined (E<sub>FD2</sub>).
Public <a href="../../../EA1/EA49.htm">Boolean</a>
  exclim

Details:
GUIDBasedOn={EE0498C2-5761-48f8-AA0B-F9F0683C01D4}
Notes: (exclim).  IEEE standard is ambiguous about lower limit on exciter output.<br /></p><p>true = a lower limit of zero is applied to integrator output<br /></p><p>false = a lower limit of zero is not applied to integrator output.<br /></p>
Public <a href="../../../EA1/EA66.htm">PU</a>
  ke

Details:
GUIDBasedOn={F33B7DB6-45EC-498c-93E3-055904655711}
Notes: Exciter constant related to self-excited field (K<sub>E</sub>).
Public <a href="../../../EA1/EA66.htm">PU</a>
  kv

Details:
GUIDBasedOn={36D76F22-8191-4d6e-8482-739E31FC97FB}
Notes: Fast raise/lower contact setting (K<sub>V</sub>).
Public <a href="../../../EA1/EA52.htm">Float</a>
  seefd1

Details:
GUIDBasedOn={286AA295-1129-4000-A7C3-AAA2704AC8BD}
Notes: Exciter saturation function value at the corresponding exciter voltage, E<sub>FD1</sub> (S<sub>E</sub>[E<sub>FD1</sub>]).
Public <a href="../../../EA1/EA52.htm">Float</a>
  seefd2

Details:
GUIDBasedOn={90CD7D02-3C97-4c68-A207-2760D27A71F9}
Notes: Exciter saturation function value at the corresponding exciter voltage, E<sub>FD2</sub> (S<sub>E</sub>[E<sub>FD2</sub>]).
Public <a href="../../../EA1/EA71.htm">Seconds</a>
  te

Details:
GUIDBasedOn={E4F92E42-7A71-426f-AB1B-742E1E204EC7}
Notes: Exciter time constant, integration rate associated with exciter control (T<sub>E</sub>).
Public <a href="../../../EA1/EA71.htm">Seconds</a>
  trh

Details:
GUIDBasedOn={2157905F-0029-4ab8-9E2B-1DF1FC803588}
Notes: Rheostat travel time (T<sub>RH</sub>).
Public <a href="../../../EA1/EA66.htm">PU</a>
  vrmax

Details:
GUIDBasedOn={9156F438-7F70-485e-8946-562C988C5E48}
Notes: Maximum voltage regulator output (V<sub>RMAX</sub>).
Public <a href="../../../EA1/EA66.htm">PU</a>
  vrmin

Details:
GUIDBasedOn={6E620177-604E-4cc3-A3E1-4BC724583146}
Notes: Minimum voltage regulator output (V<sub>RMIN</sub>).
Tag Value
GUIDBasedOn {BD327C73-BB24-4204-81F0-1D7C0CBE4B73}
Details:
 
Object Type Connection Notes
ExcitationSystemDynamics Class Generalization