CIM14/IEC61970/Dynamics/ExcitationSystems/ExcST3A.py

   1 # Copyright (C) 2010-2011 Richard Lincoln
   2 #
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   4 # of this software and associated documentation files (the "Software"), to
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  14 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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  19 # IN THE SOFTWARE.
  20
  21 from CIM14.IEC61970.Dynamics.ExcitationSystems.ExcitationSystem import ExcitationSystem
  22
  23 class ExcST3A(ExcitationSystem):
  24     """IEEE (1992/2005) ST3A Model  Some static systems utilize a field voltage control loop to linearize the exciter control characteristic. This also makes the output independent of supply source variations until supply limitations are reached. These systems utilize a variety of controlled-rectifier designs: full thyristor complements or hybrid bridges in either series or shunt configurations. The power source may consist of only a potential source, either fed from the machine terminals or from internal windings. Some designs may have compound power sources utilizing both machine potential and current. These power sources are represented as phasor combinations of machine terminal current and voltage and are accommodated by suitable parameters in the model Type ST3A.
  25     """
  26
  27     def __init__(self, kp=0.0, angp=0.0, xl=0.0, tc=0.0, tb=0.0, ki=0.0, vbmax=0.0, kc=0.0, vrmax=0.0, vimax=0.0, vgmax=0.0, km=0.0, vmmax=0.0, ka=0.0, tr=0.0, vrmin=0.0, kg=0.0, vimin=0.0, vmmin=0.0, tm=0.0, ta=0.0, *args, **kw_args):
  28         """Initialises a new 'ExcST3A' instance.
  29
  30         @param kp: Potential source gain (&gt; 0.)
  31         @param angp: Phase angle of potential source
  32         @param xl: P-bar reactance (&gt;= 0.)
  33         @param tc: AVR lead time constant
  34         @param tb: AVR lag time constant (&gt;= 0.)
  35         @param ki: Current source gain (&gt;= 0.)
  36         @param vbmax: Maximum excitation voltage (&gt; 0.)
  37         @param kc: Exciter regulation factor (&gt;= 0.)
  38         @param vrmax: Maximum AVR output (&gt; 0.)
  39         @param vimax: Maximum error (&gt; 0.)
  40         @param vgmax: Maximum inner loop feedback voltage (&gt;= 0.)
  41         @param km: Inner loop forward gain (&gt; 0.)
  42         @param vmmax: Maximum inner loop output (&gt; 0.)
  43         @param ka: AVR gain (&gt; 0.)
  44         @param tr: Voltage transducer time constant (&gt;= 0.)
  45         @param vrmin: Minimum AVR output (&lt; 0.)
  46         @param kg: Inner loop feedback gain (&gt;= 0.)
  47         @param vimin: Minimum error (&lt; 0.)
  48         @param vmmin: Minimum inner loop output (&lt;= 0.)
  49         @param tm: Inner loop time constant (&gt; 0.)
  50         @param ta: AVR time constant (&gt;= 0.)
  51         """
  52         #: Potential source gain (&gt; 0.)
  53         self.kp = kp
  54
  55         #: Phase angle of potential source
  56         self.angp = angp
  57
  58         #: P-bar reactance (&gt;= 0.)
  59         self.xl = xl
  60
  61         #: AVR lead time constant
  62         self.tc = tc
  63
  64         #: AVR lag time constant (&gt;= 0.)
  65         self.tb = tb
  66
  67         #: Current source gain (&gt;= 0.)
  68         self.ki = ki
  69
  70         #: Maximum excitation voltage (&gt; 0.)
  71         self.vbmax = vbmax
  72
  73         #: Exciter regulation factor (&gt;= 0.)
  74         self.kc = kc
  75
  76         #: Maximum AVR output (&gt; 0.)
  77         self.vrmax = vrmax
  78
  79         #: Maximum error (&gt; 0.)
  80         self.vimax = vimax
  81
  82         #: Maximum inner loop feedback voltage (&gt;= 0.)
  83         self.vgmax = vgmax
  84
  85         #: Inner loop forward gain (&gt; 0.)
  86         self.km = km
  87
  88         #: Maximum inner loop output (&gt; 0.)
  89         self.vmmax = vmmax
  90
  91         #: AVR gain (&gt; 0.)
  92         self.ka = ka
  93
  94         #: Voltage transducer time constant (&gt;= 0.)
  95         self.tr = tr
  96
  97         #: Minimum AVR output (&lt; 0.)
  98         self.vrmin = vrmin
  99
 100         #: Inner loop feedback gain (&gt;= 0.)
 101         self.kg = kg
 102
 103         #: Minimum error (&lt; 0.)
 104         self.vimin = vimin
 105
 106         #: Minimum inner loop output (&lt;= 0.)
 107         self.vmmin = vmmin
 108
 109         #: Inner loop time constant (&gt; 0.)
 110         self.tm = tm
 111
 112         #: AVR time constant (&gt;= 0.)
 113         self.ta = ta
 114
 115         super(ExcST3A, self).__init__(*args, **kw_args)
 116
 117     _attrs = ["kp", "angp", "xl", "tc", "tb", "ki", "vbmax", "kc", "vrmax", "vimax", "vgmax", "km", "vmmax", "ka", "tr", "vrmin", "kg", "vimin", "vmmin", "tm", "ta"]
 118     _attr_types = {"kp": float, "angp": float, "xl": float, "tc": float, "tb": float, "ki": float, "vbmax": float, "kc": float, "vrmax": float, "vimax": float, "vgmax": float, "km": float, "vmmax": float, "ka": float, "tr": float, "vrmin": float, "kg": float, "vimin": float, "vmmin": float, "tm": float, "ta": float}
 119     _defaults = {"kp": 0.0, "angp": 0.0, "xl": 0.0, "tc": 0.0, "tb": 0.0, "ki": 0.0, "vbmax": 0.0, "kc": 0.0, "vrmax": 0.0, "vimax": 0.0, "vgmax": 0.0, "km": 0.0, "vmmax": 0.0, "ka": 0.0, "tr": 0.0, "vrmin": 0.0, "kg": 0.0, "vimin": 0.0, "vmmin": 0.0, "tm": 0.0, "ta": 0.0}
 120     _enums = {}
 121     _refs = []
 122     _many_refs = []
 123