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authorSiddharth112352019-09-03 18:09:16 +0530
committerSiddharth112352019-09-03 18:09:16 +0530
commitb4b6aa36e3486a3544acc52419149b5671f841e9 (patch)
tree66c1783158f23e6d21c77324156fc57e18d4ac67 /PID_Practice_Cases/tank_model.mo
parentf5266f634f4fb4fd39933a83551a01cf446256b8 (diff)
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Pushing entire Modelica HIL Tasks repoHEADmaster
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+model tank_model
+ package Medium = Modelica.Media.Water.ConstantPropertyLiquidWater;
+
+ Modelica.Fluid.Examples.ControlledTankSystem.Utilities.TankController
+ tankController(
+ waitTime=50,
+ maxLevel=0.9*tank1.height,
+ minLevel=0.01)
+ annotation (Placement(transformation(extent={{-60,-20},{-20,20}})));
+ Modelica.Fluid.Examples.ControlledTankSystem.Utilities.RadioButton start(
+ reset={stop.on,shut.on},
+ buttonTimeTable={20,280})
+ annotation (Placement(transformation(extent={{-100,20},{-80,40}})));
+ Modelica.Fluid.Examples.ControlledTankSystem.Utilities.RadioButton stop(
+ reset={start.on,shut.on},
+ buttonTimeTable={220,650})
+ annotation (Placement(transformation(extent={{-100,-10},{-80,10}})));
+ Modelica.Fluid.Examples.ControlledTankSystem.Utilities.RadioButton shut(
+ reset={start.on,stop.on},
+ buttonTimeTable={700})
+ annotation (Placement(transformation(extent={{-100,-40},{-80,-20}})));
+ Modelica.Fluid.Valves.ValveDiscrete valve1( redeclare
+ package Medium = Medium,
+ m_flow_nominal=40,
+ dp_nominal=100000)
+ annotation (Placement(transformation(
+ origin={-10,70},
+ extent={{10,-10},{-10,10}},
+ rotation=180)));
+ Modelica.Fluid.Vessels.OpenTank tank1(
+ level_start=0.05,
+ redeclare package Medium = Medium,
+ crossArea=6,
+ height=4,
+ nPorts=2,
+ portsData={Modelica.Fluid.Vessels.BaseClasses.VesselPortsData(
+ diameter=0.2,
+ height=4,
+ zeta_out=0,
+ zeta_in=1),Modelica.Fluid.Vessels.BaseClasses.VesselPortsData(
+ diameter=0.2,
+ height=0,
+ zeta_out=0,
+ zeta_in=1)}) annotation (Placement(transformation(extent={{10,30},
+ {50,70}})));
+ Modelica.Blocks.Sources.RealExpression level1(y=tank1.level)
+ annotation (Placement(transformation(extent={{-90,-60},{-55,-40}})));
+ Modelica.Fluid.Valves.ValveDiscrete valve2( redeclare package Medium
+ = Medium,
+ dp_nominal(displayUnit="Pa") = 1,
+ m_flow_nominal=100)
+ annotation (Placement(transformation(
+ origin={34,0},
+ extent={{10,-10},{-10,10}},
+ rotation=90)));
+ Modelica.Fluid.Valves.ValveDiscrete valve3( redeclare package Medium
+ = Medium,
+ dp_nominal(displayUnit="Pa") = 1,
+ m_flow_nominal=10)
+ annotation (Placement(transformation(
+ origin={35,-80},
+ extent={{10,-10},{-10,10}})));
+ Modelica.Fluid.Vessels.OpenTank tank2(
+ level_start=0.05,
+ redeclare package Medium = Medium,
+ height=5,
+ crossArea=6,
+ nPorts=2,
+ portsData={Modelica.Fluid.Vessels.BaseClasses.VesselPortsData(
+ diameter=0.2,
+ height=5,
+ zeta_out=0,
+ zeta_in=1),Modelica.Fluid.Vessels.BaseClasses.VesselPortsData(
+ diameter=0.2,
+ height=0,
+ zeta_out=0,
+ zeta_in=1)}) annotation (Placement(transformation(extent={{50,-60},
+ {90,-20}})));
+ Modelica.Fluid.Sources.Boundary_pT ambient1(redeclare package Medium =
+ Medium,nPorts=1,
+ p=system.p_ambient,
+ T=system.T_ambient)
+ annotation (Placement(transformation(extent={{-10,-90},{10,-70}})));
+ Modelica.Blocks.Sources.RealExpression level2(y=tank2.level)
+ annotation (Placement(transformation(extent={{-70,-80},{-33,-60}})));
+ Modelica.Fluid.Sources.Boundary_pT source(redeclare package Medium =
+ Medium, p=2.5e6,nPorts=1,
+ T=system.T_ambient)
+ annotation (Placement(transformation(
+ origin={-40,70},
+ extent={{-10,-10},{10,10}})));
+ inner Modelica.Fluid.System system(energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial)
+ annotation (Placement(transformation(extent={{-90,70},
+ {-70,90}})));
+equation
+ connect(shut.on, tankController.shut) annotation (Line(points={{-79,-30},{
+ -72,-30},{-72,-12},{-62,-12}}, color={255,0,255}));
+ connect(stop.on, tankController.stop) annotation (Line(points={{-79,0},{-62,
+ 0}}, color={255,0,255}));
+ connect(start.on, tankController.start) annotation (Line(points={{-79,30},{
+ -70,30},{-70,12},{-62,12}}, color={255,0,255}));
+ connect(tankController.valve1, valve1.open) annotation (Line(points={{-19,12},
+ {-10,12},{-10,62}}, color={255,0,255}));
+ connect(level1.y, tankController.level1) annotation (Line(points={{-53.25,
+ -50},{-52,-50},{-52,-22}}, color={0,0,127}));
+ connect(tankController.valve2, valve2.open) annotation (Line(points={{-19,0},
+ {-5,0},{26,0}}, color={255,0,255}));
+ connect(tankController.valve3, valve3.open) annotation (Line(points={{-19,-12},
+ {-10,-12},{-10,-50},{35,-50},{35,-72}},
+ color={255,0,255}));
+ connect(level2.y, tankController.level2) annotation (Line(points={{-31.15,
+ -70},{-28,-70},{-28,-22}}, color={0,0,127}));
+
+ connect(source.ports[1], valve1.port_a) annotation (Line(
+ points={{-30,70},{-20,70}},
+ color={0,127,255}));
+ connect(valve3.port_b, ambient1.ports[1]) annotation (Line(
+ points={{25,-80},{10,-80}},
+ color={0,127,255}));
+ connect(tank2.ports[2], valve3.port_a) annotation (Line(
+ points={{74,-60},{74,-80},{45,-80}},
+ color={0,127,255}));
+ connect(valve2.port_b, tank2.ports[1]) annotation (Line(
+ points={{34,-10},{34,-20},{50,-20},{50,-60},{66,-60}},
+ color={0,127,255}));
+ connect(valve1.port_b, tank1.ports[1]) annotation (Line(
+ points={{0,70},{10,70},{10,30},{26,30}},
+ color={0,127,255}));
+ connect(tank1.ports[2], valve2.port_a) annotation (Line(
+ points={{34,30},{34,10}},
+ color={0,127,255}));
+ annotation (
+ experiment(StopTime=900),
+ Documentation(info="<html>
+<p>
+With this example, the controller of a tank filling/emptying system
+is demonstrated.
+</p>
+
+<p>
+The basic operation is to fill and empty the two tanks:
+</p>
+<ol>
+<li> Valve 1 is opened and tank 1 is filled.</li>
+<li> When tank 1 reaches its fill level limit,
+ valve 1 is closed. </li>
+<li> After a waiting time, valve 2 is
+ opened and the fluid flows from tank 1 into tank 2.</li>
+<li> When tank 1 reaches its minimum level, valve 2 is closed. </li>
+<li> After a waiting time, valve 3 is opened and
+ the fluid flows out of tank 2</li>
+<li> When tank 2 reaches its minimum level, valve 3 is closed</li>
+</ol>
+<p>
+The above \"normal\" process can be influenced by three
+buttons:
+</p>
+<ul>
+<li> Button <b>start</b> starts the above process.
+ When this button is pressed after a \"stop\" or
+ \"shut\" operation, the process operation continues.
+ </li>
+<li> Button <b>stop</b> stops the above process by
+ closing all valves. Then, the controller waits for
+ further input (either \"start\" or \"shut\" operation).</li>
+<li> Button <b>shut</b> is used to shutdown the process,
+ by emptying at once both tanks by opening valve 2 and
+ valve 3. When this is achieved,
+ the process goes back to its start configuration
+ where all 3 valves are closed.
+ Clicking on \"start\", restarts the process.</li>
+</ul>
+
+<p>
+The demo-run uses the following button presses:
+</p>
+
+<ul>
+<li> Button <b>start</b> pressed at 20 s.</li>
+<li> Button <b>stop</b> pressed at 220 s </li>
+<li> Button <b>start</b> pressed at 280 s </li>
+<li> Button <b>stop</b> pressed at 650 s </li>
+<li> Button <b>shut</b> pressed at 700 s </li>
+<li> Simulate for 900 s</li>
+</ul>
+
+<p>
+This example is based on
+</p>
+
+<dl>
+<dt>Dressler I. (2004):</dt>
+<dd> <b>Code Generation From JGrafchart to Modelica</b>.
+ Master thesis, supervisor: Karl-Erik Arzen,
+ Department of Automatic Control, Lund Institute of Technology,
+ Lund, Sweden, March 30, 2004<br>&nbsp;</dd>
+</dl>
+
+<img src=\"modelica://Modelica/Resources/Images/Fluid/Examples/ControlledTanks.png\" border=\"1\"
+ alt=\"ControlledTanks.png\">
+</html>"),
+ __Dymola_Commands(file=
+ "modelica://Modelica/Resources/Scripts/Dymola/Fluid/ControlledTanks/plot level and ports.m_flow.mos"
+ "plot level and ports.m_flow"));
+end tank_model; \ No newline at end of file