non linearity problems, modelica do not converge :( 
non linearity problems, modelica do not converge :( 
Jawhar 
Apr 15 2010, 12:48 PM
Post
#1

Advanced Member Group: Members Posts: 55 Joined: 19January 07 Member No.: 336 
Hi, i am traying to simulate a model that include a variable resistor ( i work on a electrical model ), this variable resistor change value, the factor between the values is very high, first value = 5.0e3 Ohm and the other is 2.0e6 Ohm. Also i tried to change the tolerence value (1e4) but modelica still could'nt converge. and it stop calculation on the point when the resistor change value. Is there is some methods to enhance the calculation algorithem, to solve the non convergence problem ?? Regards Try to rewrite the model by adding a stuck state. Regards/ Hassen Jawhar  IFP Energies Nouvelles

MOS701 
Feb 26 2009, 03:47 PM
Post
#2

Member Group: Members Posts: 16 Joined: 11February 09 Member No.: 30,419 
Hi,
i am traying to simulate a model that include a variable resistor ( i work on a electrical model ), this variable resistor change value, the factor between the values is very high, first value = 5.0e3 Ohm and the other is 2.0e6 Ohm. Also i tried to change the tolerence value (1e4) but modelica still could'nt converge. and it stop calculation on the point when the resistor change value. Is there is some methods to enhance the calculation algorithem, to solve the non convergence problem ?? Regards 
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