: Public Class
Created: 07/05/2009 12:46:27
Modified: 30/04/2012 21:40:01
Project:
Advanced:
This is modified IEEE DC3A direct current commutator exciters with speed input, and death band.  DC old type 4.<br/>
Attribute
Public PU
  edfmax
Details:
Notes: Maximum voltage exciter output limiter (Efdmax).  Typical Value = 99.<br/>
Public PU
  efd1
Details:
Notes: Exciter voltage at which exciter saturation is defined (Efd1).  Typical Value = 2.6.<br/>
Public PU
  efd2
Details:
Notes: Exciter voltage at which exciter saturation is defined (Efd2).  Typical Value = 3.45.<br/>
Public Boolean
  efdlim
Details:
Notes: (Efdlim).<br/>true = exciter output limiter is active<br/>false = exciter output limiter not active.<br/>Typical Value = true.<br/>
Public PU
  efdmin
Details:
Notes: Minimum voltage exciter output limiter (Efdmin).  Typical Value = -99.<br/>
Public Boolean
  exclim
Details:
Notes: (exclim).  IEEE standard is ambiguous about lower limit on exciter output.<br/>true = a lower limit of zero is applied to integrator output<br/>false = a lower limit of zero not applied to integrator output.<br/>Typical Value = true.<br/>
Public PU
  ke
Details:
Notes: Exciter constant related to self-excited field (Ke).  Typical Value = 1.<br/>
Public PU
  kr
Details:
Notes: Death band (Kr).  If Kr is not zero, the voltage regulator input changes at a constant rate if Verr #gt; Kr or Verr #lt; -Kr as per the IEEE (1968) Type 4 model. If Kr is zero, the error signal drives the voltage regulator continuously as per the IEEE (1980) DC3 and IEEE (1992, 2005) DC3A models.  Typical Value = 0.<br/>
Public PU
  ks
Details:
Notes: Coefficient to allow different usage of the model-speed coefficient (Ks).  Typical Value = 0.<br/>
Public PU
  kv
Details:
Notes: Fast raise/lower contact setting (Kv).  Typical Value = 0.05.<br/>
Public Float
  seefd1
Details:
Notes: Exciter saturation function value at the corresponding exciter voltage, Efd1 (Se[Eefd1]).  Typical Value = 0.1.<br/>
Public Float
  seefd2
Details:
Notes: Exciter saturation function value at the corresponding exciter voltage, Efd2 (Se[Efd2]).  Typical Value = 0.35.<br/>
Public Seconds
  te
Details:
Notes: Exciter time constant, integration rate associated with exciter control (Te).  Typical Value = 1.83.<br/>
Public Seconds
  trh
Details:
Notes: Rheostat travel time (Trh).  Typical Value = 20.<br/>
Public PU
  vrmax
Details:
Notes: Maximum voltage regulator output (Vrmax).  Typical Value = 5.<br/>
Public PU
  vrmin
Details:
Notes: Minimum voltage regulator output (Vrmin).  Typical Value = 0.<br/>
Object Type Connection Direction Notes
ExcitationSystemDynamics Class Generalization To