PandE2019_RLC_example.mdl

//-------------------------------------------------------------------------------------------------
//
//   File Name:     PandE2019_RLC_example.mdl
//   Date(s):       February 1, 2019
//   Author:        Jeffrey Csank, David Sadey, Tom Lavelle
//					NASA Glenn Research Center
//
//   Description:   Basic RLC circuit to demonstrate ability to use NPSS for solve for 
//					a basic circuit. This example is used in a paper in the 2019 Propulsion and Energy
//					conference. Sample problem camealtern from
//	https://www.allaboutcircuits.com/textbook/alternating-current/chpt-5/series-parallel-r-l-and-c/
//
//-------------------------------------------------------------------------------------------------

// create and ACsource
class ACSource extends Element{
  ElectricOutputPort EP_O;
  ElectricInputPort EP_I1, EP_I2;
}

real defaultFrequency = 60.;

ACSource ACS{
  void postexecute(){
    EP_O.frequency = 60.;
    EP_O.setIVRMS( 0,0, 120, 0 );
    EP_I1.setIVRMS( 0, 0, 0, 0 );
    EP_I2.setIVRMS( 0, 0, 0, 0 );
  }
}

Capacitor C1{
  C = 10e-6;  
}

Inductor L1{
  L = 500e-3;
}

Capacitor C2{
  C = 1e-6;
}

Element Resistor R1{
	R = 500;
}

//--------------------------------------------------------
// link it up
//--------------------------------------------------------
linkEports( "ACS.EP_O", "C1.EP_I", "PORT" );
linkEports("C1.EP_O", "n1" ,"NODE");
linkEports( "L1.EP_I", "n1", "NODE" );
linkEports( "L1.EP_O", "n2", "NODE" );
linkEports( "C2.EP_I", "n2", "NODE" );
linkEports( "C2.EP_O", "ACS.EP_I1", "PORT" );
linkEports( "R1.EP_I", "n1", "NODE" );
linkEports( "R1.EP_O", "ACS.EP_I2", "PORT" );

n1{
  VrealRMS = 120-70;  //guess value
  VimagRMS = 40;  //guess value		
}

n2{
  VrealRMS = 120-70+8;  //guess value
  VimagRMS = 40+6.98;  //guess value
}