simexa25.mdl

solve power flows by gauss seidel method ans newton Rapson

Model {
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  PaperOrientation	  landscape
  PaperType		  usletter
  PaperUnits		  inches
  StartTime		  "0.0"
  StopTime		  "5.0"
  Solver		  ode45
  RelTol		  "1e-5"
  AbsTol		  "1e-6"
  Refine		  "1"
  MaxStep		  "auto"
  InitialStep		  "auto"
  FixedStep		  "auto"
  MaxOrder		  5
  OutputOption		  RefineOutputTimes
  OutputTimes		  "[]"
  LoadExternalInput	  off
  ExternalInput		  "[t, u]"
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  StateSaveName		  "xout"
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  InitialState		  "xInitial"
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  FinalStateName	  "xFinal"
  LimitMaxRows		  off
  MaxRows		  "1000"
  Decimation		  "1"
  AlgebraicLoopMsg	  warning
  MinStepSizeMsg	  warning
  UnconnectedInputMsg	  warning
  UnconnectedOutputMsg	  warning
  UnconnectedLineMsg	  warning
  ConsistencyChecking	  off
  ZeroCross		  on
  SimulationMode	  normal
  RTWSystemTargetFile	  "grt.tlc"
  RTWInlineParameters	  off
  RTWRetainRTWFile	  off
  RTWTemplateMakefile	  "grt_vc.tmf"
  RTWMakeCommand	  "make_rtw"
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  BlockDefaults {
    Orientation		    right
    ForegroundColor	    black
    BackgroundColor	    white
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    NamePlacement	    normal
    FontName		    "Helvetica"
    FontSize		    10
    FontWeight		    normal
    FontAngle		    normal
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  AnnotationDefaults {
    HorizontalAlignment	    center
    VerticalAlignment	    middle
    ForegroundColor	    black
    BackgroundColor	    white
    DropShadow		    off
    FontName		    "Helvetica"
    FontSize		    10
    FontWeight		    normal
    FontAngle		    normal
  }
  LineDefaults {
    FontName		    "Helvetica"
    FontSize		    9
    FontWeight		    normal
    FontAngle		    normal
  }
  System {
    Name		    "simexa25"
    Location		    [57, 132, 648, 552]
    Open		    on
    ScreenColor		    white
    Block {
      BlockType		      Clock
      Name		      "Clock"
      Position		      [200, 290, 220, 310]
      FontName		      "Times New Roman"
      FontSize		      18
      Location		      [12, 31, 119, 76]
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    Block {
      BlockType		      Step
      Name		      "Step"
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      FontName		      "Times New Roman"
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      Time		      "1"
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      After		      "1"
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    Block {
      BlockType		      ToWorkspace
      Name		      "To Workspace"
      Position		      [300, 208, 400, 242]
      FontName		      "Times New Roman"
      FontSize		      18
      VariableName	      "c"
      Buffer		      "inf"
      Decimation	      "1"
      SampleTime	      "-1"
    }
    Block {
      BlockType		      ToWorkspace
      Name		      "To Workspace1"
      Position		      [300, 284, 405, 316]
      FontName		      "Times New Roman"
      FontSize		      18
      VariableName	      "t"
      Buffer		      "inf"
      Decimation	      "1"
      SampleTime	      "-1"
    }
    Block {
      BlockType		      TransferFcn
      Name		      "Transfer Fcn"
      Position		      [155, 196, 260, 254]
      FontName		      "Times New Roman"
      FontSize		      18
      Numerator		      "[25]"
      Denominator	      "[1  2   25] "
    }
    Line {
      SrcBlock		      "Clock"
      SrcPort		      1
      DstBlock		      "To Workspace1"
      DstPort		      1
    }
    Line {
      SrcBlock		      "Step"
      SrcPort		      1
      DstBlock		      "Transfer Fcn"
      DstPort		      1
    }
    Line {
      SrcBlock		      "Transfer Fcn"
      SrcPort		      1
      DstBlock		      "To Workspace"
      DstPort		      1
    }
    Annotation {
      Position		      [253, 378]
      FontSize		      12
      Text		      "Simulation model for system in Example A.25"
    }
    Annotation {
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      FontName		      "Times New Roman"
      FontSize		      18
      Text		      "C(s)/R(S) = 25/(s^2+2s + 25)(s),  where r(t) "
			      "is a unit step function"
    }
    Annotation {
      Position		      [217, 54]
      FontName		      "Times New Roman"
      FontSize		      18
      Text		      "Use simulink to obtain the step response "
			      "for the\n   following transfer function.        "
			      "                         "
    }
    Annotation {
      Position		      [274, 143]
      FontName		      "Times New Roman"
      FontSize		      18
      Text		      "and use To Workspace block to return the "
			      "response c(t) to the \nMATLAB Workspace.        "
			      "                                                "
			      "  "
    }
    Annotation {
      Position		      [88, 186]
      FontName		      "Times New Roman"
      FontSize		      18
      Text		      "u(t)"
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