power_pwm.mdl

电力系统脉宽调制波形

      Saturation	      "[14.03593122, 27.81365428, 53.79336849, 72.6889"
"0987, 97.98006896, 148.6815601, 215.7428561, 302.9841135, 428.7778367 ; 230, "
"322, 414, 460, 506, 552, 598, 644, 690]"
    }
    Block {
      BlockType		      BusSelector
      Name		      "Bus\nSelector"
      Ports		      [1, 5]
      Position		      [485, 20, 490, 220]
      ShowName		      off
      OutputSignals	      "Stator measurements.Stator voltage vs_d (V),Sta"
"tor measurements.Stator current is_d (A),Stator measurements.Stator voltage v"
"s_q (V),Stator measurements.Stator current  is_q (A),Mechanical.Rotor speed ("
"wm)"
      Port {
	PortNumber		1
	Name			"<Stator voltage vs_d (V)>"
	RTWStorageClass		"Auto"
	DataLoggingNameMode	"SignalName"
      }
      Port {
	PortNumber		2
	Name			"<Stator current is_d (A)>"
	RTWStorageClass		"Auto"
	DataLoggingNameMode	"SignalName"
      }
      Port {
	PortNumber		3
	Name			"<Stator voltage vs_q (V)>"
	RTWStorageClass		"Auto"
	DataLoggingNameMode	"SignalName"
      }
      Port {
	PortNumber		4
	Name			"<Stator current  is_q (A)>"
	RTWStorageClass		"Auto"
	DataLoggingNameMode	"SignalName"
      }
      Port {
	PortNumber		5
	Name			"<Rotor speed (wm)>"
	RTWStorageClass		"Auto"
	DataLoggingNameMode	"SignalName"
      }
    }
    Block {
      BlockType		      Clock
      Name		      "Clock"
      Position		      [580, 530, 600, 550]
      Orientation	      "left"
      Decimation	      "10"
    }
    Block {
      BlockType		      Constant
      Name		      "Constant"
      Position		      [425, 475, 510, 495]
      Orientation	      "left"
      ShowName		      off
      Value		      "2*pi/3*[ 0,-1,1 ]"
    }
    Block {
      BlockType		      Constant
      Name		      "Constant1"
      Position		      [460, 556, 510, 574]
      Orientation	      "left"
      ShowName		      off
      Value		      "1/1980"
    }
    Block {
      BlockType		      Demux
      Name		      "Demux"
      Ports		      [1, 3]
      Position		      [220, 424, 225, 566]
      Orientation	      "left"
      BackgroundColor	      "black"
      Outputs		      "3"
    }
    Block {
      BlockType		      Reference
      Name		      "Discrete\nPI Controller"
      Ports		      [1, 1]
      Position		      [1020, 57, 1065, 103]
      DialogController	      "POWERSYS.PowerSysDialog"
      SourceBlock	      "powerlib_extras/Discrete \nControl Blocks/Discr"
"ete\nPI Controller"
      SourceType	      "Discrete PI Controller"
      ShowPortLabels	      "FromPortIcon"
      SystemSampleTime	      "-1"
      FunctionWithSeparateData off
      RTWMemSecFuncInitTerm   "Inherit from model"
      RTWMemSecFuncExecute    "Inherit from model"
      RTWMemSecDataConstants  "Inherit from model"
      RTWMemSecDataInternal   "Inherit from model"
      RTWMemSecDataParameters "Inherit from model"
      Kp		      "100"
      Ki		      "0.1"
      Par_Limits	      "[1e6 -1e6]"
      Init		      "0"
      Ts		      "50e-6"
    }
    Block {
      BlockType		      DiscreteIntegrator
      Name		      "Discrete-Time\nIntegrator"
      Ports		      [1, 1]
      Position		      [775, 14, 810, 46]
      IntegratorMethod	      "Integration: Forward Euler"
      ExternalReset	      "none"
      InitialConditionSource  "internal"
      IgnoreLimit	      off
      ICPrevOutput	      "DiscIntNeverNeededParam"
      ICPrevScaledInput	      "DiscIntNeverNeededParam"
    }
    Block {
      BlockType		      DiscreteIntegrator
      Name		      "Discrete-Time\nIntegrator1"
      Ports		      [1, 1]
      Position		      [775, 129, 810, 161]
      IntegratorMethod	      "Integration: Forward Euler"
      ExternalReset	      "none"
      InitialConditionSource  "internal"
      IgnoreLimit	      off
      ICPrevOutput	      "DiscIntNeverNeededParam"
      ICPrevScaledInput	      "DiscIntNeverNeededParam"
    }
    Block {
      BlockType		      DiscreteIntegrator
      Name		      "Discrete-Time\nIntegrator2"
      Ports		      [1, 1]
      Position		      [869, 350, 901, 385]
      Orientation	      "down"
      NamePlacement	      "alternate"
      ShowName		      off
      IntegratorMethod	      "Integration: Forward Euler"
      ExternalReset	      "none"
      InitialConditionSource  "internal"
      IgnoreLimit	      off
      ICPrevOutput	      "DiscIntNeverNeededParam"
      ICPrevScaledInput	      "DiscIntNeverNeededParam"
    }
    Block {
      BlockType		      DiscreteIntegrator
      Name		      "Discrete-Time\nIntegrator3"
      Ports		      [1, 1]
      Position		      [864, 590, 896, 625]
      Orientation	      "down"
      NamePlacement	      "alternate"
      ShowName		      off
      IntegratorMethod	      "Integration: Forward Euler"
      ExternalReset	      "none"
      InitialConditionSource  "internal"
      IgnoreLimit	      off
      ICPrevOutput	      "DiscIntNeverNeededParam"
      ICPrevScaledInput	      "DiscIntNeverNeededParam"
    }
    Block {
      BlockType		      SubSystem
      Name		      "Double click here for more info"
      Ports		      []
      Position		      [490, 650, 517, 675]
      DropShadow	      on
      OpenFcn		      "showdemo(bdroot(gcb))"
      MinAlgLoopOccurrences   off
      RTWSystemCode	      "Auto"
      FunctionWithSeparateData off
      MaskHideContents	      off
      MaskDisplay	      "disp('?')"
      MaskIconFrame	      on
      MaskIconOpaque	      on
      MaskIconRotate	      "none"
      MaskIconUnits	      "autoscale"
      System {
	Name			"Double click here for more info"
	Location		[62, 201, 703, 717]
	Open			off
	ModelBrowserVisibility	off
	ModelBrowserWidth	200
	ScreenColor		"white"
	PaperOrientation	"landscape"
	PaperPositionMode	"auto"
	PaperType		"usletter"
	PaperUnits		"inches"
	TiledPaperMargins	[0.500000, 0.500000, 0.500000, 0.500000]
	TiledPageScale		1
	ShowPageBoundaries	off
	ZoomFactor		"100"
	Annotation {
	  Name			  "Demonstration"
	  Position		  [24, 292]
	  HorizontalAlignment	  "left"
	  VerticalAlignment	  "top"
	  ForegroundColor	  "blue"
	  FontSize		  14
	  FontWeight		  "bold"
	}
	Annotation {
	  Name			  "Circuit Description"
	  Position		  [24, 97]
	  HorizontalAlignment	  "left"
	  VerticalAlignment	  "top"
	  ForegroundColor	  "blue"
	  FontSize		  14
	  FontWeight		  "bold"
	}
	Annotation {
	  Name			  "This demonstration illustrates use of the a"
"synchronous machine\nin an open-loop speed control on a 3 HP 220 V industrial"
" motor       "
	  Position		  [24, 22]
	  HorizontalAlignment	  "left"
	  VerticalAlignment	  "top"
	  FontSize		  14
	  FontWeight		  "bold"
	}
	Annotation {
	  Name			  "A three-phase motor rated 3 HP, 220 V, 1725"
" rpm is fed by a sinusoidal PWM inverter. The base frequency\nof the sinusoid"
"al reference wave is 60 Hz while the triangular carrier wave's frequency is s"
"et to 1980 Hz.     \nThe PWM inverter is built entirely with standard Simulin"
"k blocks. Its output goes through Controlled Voltage \nSource blocks before b"
"eing applied to the Asynchronous Machine block's stator windings. The machine"
"'s     \nrotor is short-circuited. Its stator leakage inductance Lls is set t"
"o twice its actual value to simulate the        \neffect of a smoothing react"
"or placed between the inverter and the machine. The load torque applied to th"
"e   \nmachine's shaft is constant and set to its nominal value of 11.9 N.m.  "
"                                                       \n \nThe motor is star"
"ted from stall. The speed setpoint is set to 1.0 pu, or 1725 rpm. This speed "
"is reached        \nafter 0.9 s.                                             "
"                                                                             "
"                "
	  Position		  [26, 125]
	  HorizontalAlignment	  "left"
	  VerticalAlignment	  "top"
	  FontSize		  12
	}
	Annotation {
	  Name			  "Take a look at the simulation parameters. T"
"he Maximum time step has been limited to 10 microseconds.\nThis is required d"
"ue to the relatively high switching frequency (1980 Hz) of the inverter.     "
"                            \n\nObserve that the rotor and stator currents ar"
"e quite \"noisy,\" despite the use of a smoothing reactor. The noise \nintrod"
"uced by the PWM inverter is also observed in the electromagnetic torque wavef"
"orm Te. However, the     \nmotor's inertia prevents this noise from appearing"
" in the motor's speed waveform.                                           \n"
"\nThe RMS value of the fundamental component of the line voltage at the machi"
"ne's stator terminals is extracted   \nwith a Fourier block, which can be fou"
"nd in the Measurements group of the Extras library.                          "
"    \n\nFinally, observe the PWM inverter's output. Use the zoom on the vab o"
"scilloscope to zoom in on the waveform."
	  Position		  [24, 326]
	  HorizontalAlignment	  "left"
	  VerticalAlignment	  "top"
	  FontSize		  12
	}
	Annotation {
	  Name			  "Louis-A. Dessaint  and  R. Champagne (Ecole"
" de Technologie Superieure, Montreal)"
	  Position		  [25, 66]
	  HorizontalAlignment	  "left"
	  VerticalAlignment	  "top"
	  FontSize		  12
	}
      }
    }
    Block {
      BlockType		      Reference
      Name		      "Fourier"
      Ports		      [1, 2]
      Position		      [185, 214, 230, 261]
      DialogController	      "POWERSYS.PowerSysDialog"
      SourceBlock	      "powerlib_extras/Measurements/Fourier"
      SourceType	      "Fourier analyser"
      ShowPortLabels	      "FromPortIcon"
      SystemSampleTime	      "-1"
      FunctionWithSeparateData off
      RTWMemSecFuncInitTerm   "Inherit from model"
      RTWMemSecFuncExecute    "Inherit from model"
      RTWMemSecDataConstants  "Inherit from model"
      RTWMemSecDataInternal   "Inherit from model"
      RTWMemSecDataParameters "Inherit from model"
      f1		      "60"
      n			      "1"
    }
    Block {
      BlockType		      Gain
      Name		      "Gain"
      Position		      [875, 15, 905, 45]
      ParameterDataTypeMode   "Inherit via internal rule"
      OutDataTypeMode	      "Inherit via internal rule"
      SaturateOnIntegerOverflow	off
    }
    Block {
      BlockType		      Gain
      Name		      "Gain1"
      Position		      [685, 55, 715, 85]
      Gain		      "3.246"
      ParameterDataTypeMode   "Inherit via internal rule"
      OutDataTypeMode	      "Inherit via internal rule"
      SaturateOnIntegerOverflow	off
    }
    Block {
      BlockType		      Gain
      Name		      "Gain2"
      Position		      [770, 85, 800, 115]
      Gain		      "2.63"
      ParameterDataTypeMode   "Inherit via internal rule"
      OutDataTypeMode	      "Inherit via internal rule"
      SaturateOnIntegerOverflow	off
    }
    Block {
      BlockType		      Gain
      Name		      "Gain3"
      Position		      [865, 130, 895, 160]
      ParameterDataTypeMode   "Inherit via internal rule"
      OutDataTypeMode	      "Inherit via internal rule"
      SaturateOnIntegerOverflow	off
    }
    Block {
      BlockType		      Gain
      Name		      "Gain4"
      Position		      [690, 180, 720, 210]
      Gain		      "3.246"
      ParameterDataTypeMode   "Inherit via internal rule"
      OutDataTypeMode	      "Inherit via internal rule"
      SaturateOnIntegerOverflow	off
    }
    Block {
      BlockType		      Gain
      Name		      "Gain5"
      Position		      [770, 200, 800, 230]
      Gain		      "2.63"
      ParameterDataTypeMode   "Inherit via internal rule"
      OutDataTypeMode	      "Inherit via internal rule"
      SaturateOnIntegerOverflow	off
    }
    Block {
      BlockType		      Gain
      Name		      "Gain6"
      Position		      [675, 255, 705, 285]
      Gain		      "0.843"
      ParameterDataTypeMode   "Inherit via internal rule"
      OutDataTypeMode	      "Inherit via internal rule"
      SaturateOnIntegerOverflow	off
    }
    Block {
      BlockType		      Gain
      Name		      "Gain8"
      Position		      [665, 485, 695, 515]
      Gain		      "0.312"
      ParameterDataTypeMode   "Inherit via internal rule"
      OutDataTypeMode	      "Inherit via internal rule"
      SaturateOnIntegerOverflow	off
    }
    Block {
      BlockType		      Gain
      Name		      "Gain9"
      Position		      [715, 535, 745, 565]
      Gain		      "0.843"
      ParameterDataTypeMode   "Inherit via internal rule"
      OutDataTypeMode	      "Inherit via internal rule"
      SaturateOnIntegerOverflow	off
    }
    Block {
      BlockType		      Lookup
      Name		      "Look-Up\nTable"
      Position		      [340, 544, 365, 566]
      Orientation	      "left"
      InputValues	      "[0 0.25  0.75  1] / 1980"
      OutputValues	      "[0  1  -1  0]"
    }
    Block {
      BlockType		      Math
      Name		      "Math\nFunction"
      Ports		      [2, 1]
      Position		      [405, 529, 430, 576]
      Orientation	      "left"
      Operator		      "rem"
    }
    Block {
      BlockType		      SubSystem
      Name		      "PI"
      Ports		      [1, 1]
      Position		      [1075, 293, 1125, 337]
      MinAlgLoopOccurrences   off
      RTWSystemCode	      "Auto"
      FunctionWithSeparateData off
      MaskHideContents	      off
      System {
	Name			"PI"
	Location		[433, 403, 931, 703]
	Open			off
	ModelBrowserVisibility	off
	ModelBrowserWidth	200
	ScreenColor		"white"
	PaperOrientation	"landscape"
	PaperPositionMode	"auto"
	PaperType		"A4"
	PaperUnits		"centimeters"
	TiledPaperMargins	[0.500000, 0.500000, 0.500000, 0.500000]
	TiledPageScale		1
	ShowPageBoundaries	off
	ZoomFactor		"100"
	Block {
	  BlockType		  Inport
	  Name			  "In1"
	  Position		  [60, 103, 90, 117]
	  IconDisplay		  "Port number"
	}
	Block {
	  BlockType		  Sum
	  Name			  "Add"
	  Ports			  [2, 1]
	  Position		  [365, 87, 395, 138]
	  CollapseMode		  "All dimensions"
	  InputSameDT		  off
	  OutDataTypeMode	  "Inherit via internal rule"
	  OutScaling		  "2^-10"
	  SaturateOnIntegerOverflow off
	}
	Block {
	  BlockType		  Gain
	  Name			  "Gain"
	  Position		  [120, 95, 150, 125]
	  Gain			  "200"
	  ParameterDataTypeMode	  "Inherit via internal rule"
	  OutDataTypeMode	  "Inherit via internal rule"
	  SaturateOnIntegerOverflow off
	}
	Block {
	  BlockType		  Gain
	  Name			  "Gain1"
	  Position		  [190, 95, 220, 125]
	  Gain			  "2"
	  ParameterDataTypeMode	  "Inherit via internal rule"
	  OutDataTypeMode	  "Inherit via internal rule"
	  SaturateOnIntegerOverflow off
	}
	Block {
	  BlockType		  Integrator
	  Name			  "Integrator"
	  Ports			  [1, 1]
	  Position		  [280, 95, 310, 125]
	  IgnoreLimit		  off
	}
	Block {
	  BlockType		  Outport
	  Name			  "Out1"
	  Position		  [435, 103, 465, 117]
	  IconDisplay		  "Port number"