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Text File  |  1994-02-28  |  2KB  |  109 lines
  1. ; VisSim Block Diagram Format (VBDF)
  2. ; Copyright (C) 1989-1994 Visual Solutions
  3. PV=1.500
  4. PS=0
  5. PE=5
  6. PP=0.005
  7. PI=170
  8. PX=0.005
  9. PN=1e-006
  10. PL=5
  11. PT=1e-005
  12. Pn=-8,6,14,"MS Serif"
  13. Pc=27
  14. Po=0.01,50,664
  15. PD=800x600
  16. Pf=0x0
  17. Pr=""
  18. Ps=1566,0,0,1090,0,0
  19. Pd=17
  20. PM=1,1,1,1
  21. N.1="wireLabel"*2x15<M>
  22. n="Setpoint"
  23. N.2="wireLabel"*1x60<M>
  24. n="Feedback "
  25. N.3="wireLabel"*109x35<M>
  26. n="Output signal"
  27. N.4="summingJunction"*78x37<M>
  28. N.5="summingJunction"*20x37<M>
  29. N.6="Compound"*0x0#2,1<C>
  30. n="rfb_ctl.bmp"
  31. Ms=657,0,0,518,0,0
  32. Mb
  33. MB=6,7,1,1
  34. N.7="comment"*18x5*111x18<M>
  35. C="Rate Feedback (RFB) Controller Model:
  36.  
  37. Used to control the transient characteristics of a system (time constant and damping ratio).  
  38.  
  39. Limitations:
  40. 1.  Check the limitations inside the Derivative block
  41.  "
  42. N.8="wireLabel"*21x63<M>
  43. n="==== Parameters ===="
  44. N.9="variable"*33x67<M>
  45. n=":Proportional Gain"
  46. N.10="variable"*33x70<M>
  47. n=":Rate Gain"
  48. N.11="const"(1)*21x67<M>
  49. N.12="const"(0.1)*21x70<M>
  50. N.13="*"*59x36<M>
  51. N.14="*"*47x55<M>
  52. N.15="variable"*33x36<M>
  53. n=":Proportional Gain"
  54. N.16="variable"*25x55<M>
  55. n=":Rate Gain"
  56. N.17="summingJunction"*30x38<M>
  57. N.18="integrator"(0,0)*27x48<MR>
  58. N.19="Compound"*57x53#1,1<MC>
  59. n="     d
  60.     ----
  61.       dt
  62.  
  63. Derivative"
  64. Ms=680,0,0,470,0,0
  65. N.20="/"*76x37<M>
  66. N.21="wireLabel"*5x35<M>
  67. n="Input signal"
  68. N.22="wireLabel"*113x35<M>
  69. n="Output signal"
  70. N.23="comment"*3x1*124x21<M>
  71. C="Derivative Model:    
  72.  
  73. This model is used to take the derivative of a signal using a lag filter.  The derivative is valid for frequencies up to (1/ time constant).  For higher frequencies the time constant must be decreased.
  74.  
  75. Limitations: 
  76. 1.  time constant > 0
  77. 2.  Simulation stepsize must be less than the time constant for stability."
  78. N.24="variable"*51x42<M>
  79. n=":time constant"
  80. N.25="wireLabel"*10x62<M>
  81. n="==== Parameters ===="
  82. N.26="variable"*22x67<M>
  83. n=":time constant"
  84. N.27="const"(0.01)*6x67<M>
  85. I.4.i1=13.o1
  86. f4.2.i=-
  87. I.4.i2=19.o1
  88. I.5.i1=6.i1
  89. f5.2.i=-
  90. I.5.i2=6.i2
  91. G.6=1,5,4,3,2,7,8,9,10,11,12,13,14,15,16,19,
  92. I.6.o1=4.o1
  93. I.9.i1=11.o1
  94. I.10.i1=12.o1
  95. I.13.i1=15.o1
  96. I.13.i2=5.o1
  97. I.14.i1=16.o1
  98. I.14.i2=6.i2
  99. I.17.i1=19.i1
  100. f17.2.i=-
  101. I.17.i2=18.o1
  102. I.18.i1=20.o1
  103. G.19=17,18,20,21,22,23,24,25,26,27,
  104. I.19.o1=20.o1
  105. I.19.i1=14.o1
  106. I.20.i1=17.o1
  107. I.20.i2=24.o1
  108. I.26.i1=27.o1
  109.