Dear Adrian, i just tried to install openmodelica, but the installation failed. Do i need to install another program to use openmodelica? Thanks a lot Zakia/IFP
-----Message d'origine----- De : [email protected] [mailto:[email protected]]de la part de Adrian Pop Envoyé : vendredi 12 décembre 2008 04:46 À : [email protected] Objet : Re: Problem with OpenModelica simulation Hi, There is a new nightly-build available here: http://www.ida.liu.se/~pelab/modelica/OpenModelica/OMC/nightly-builds/ which should (hopefully :) deal with your problem. Cheers, Adrian Pop/ Pranesh Rao wrote: > I found the problem in my simulation. I had to add a small capacitor > between the anode of diode D6 and ground g. The model works in Dymola > but still not in OpenModelica because of the data structure problem > that Adrian pointed out. > > Thanks. > > Pranesh > > -----Original Message----- From: > [email protected] > [mailto:[email protected]] On Behalf Of Pranesh > Rao Sent: Tuesday, December 09, 2008 8:09 AM To: > [email protected] Subject: RE: Problem with > OpenModelica simulation > > Adrian, > > Thank you for your help. I will look at the model and see what I am > missing - perhaps a decoupling capacitor or something. > > Again, thanks. > > Pranesh Rao > > -----Original Message----- From: > [email protected] > [mailto:[email protected]] On Behalf Of Adrian > Pop Sent: Tuesday, December 09, 2008 5:12 AM To: > [email protected] Subject: Re: Problem with > OpenModelica simulation > > > Hi, > > Some of the fixed data structures inside the simulation runtime need > to be increased. They should actually be dynamic, but that's another > story. I'll generate a new nightly-build in a couple of days and let > you know when is available. > > The generated system of equations seems to be singular so you might > also need to do some changes in your model. Maybe some other people > on the list can help you with that. > > Cheers, Adrian Pop/ > > Pranesh Rao wrote: >> Hi, >> >> >> >> I am trying to simulate the following model using OpenModelica >> 1.4.4 and the Modelica 3.0 library: >> >> >> >> model br3ph1 "three phase diode bridge feeding R-L load (source >> inductance present)" >> >> constant Real PI = Modelica.Constants.pi; >> >> Modelica.Electrical.Analog.Sources.SineVoltage >> src_a(V=120.0,phase=0,freqHz=60.0); >> >> Modelica.Electrical.Analog.Sources.SineVoltage >> src_b(V=120.0,phase=-2*PI/3,freqHz=60.0); >> >> Modelica.Electrical.Analog.Sources.SineVoltage >> src_c(V=120.0,phase=2*PI/3,freqHz=60.0); >> >> Modelica.Electrical.Analog.Basic.Resistor rs[3](each R=0.1) "source >> resistance"; >> >> Modelica.Electrical.Analog.Basic.Inductor ls[3](each L=1e-3) >> "source inductance"; >> >> Modelica.Electrical.Analog.Ideal.IdealDiode D1,D2,D3,D4,D5,D6; >> >> Modelica.Electrical.Analog.Basic.Resistor r_l(R=1) "load >> resistance"; >> >> Modelica.Electrical.Analog.Basic.Inductor l_l(L=0.1) "load >> inductance"; >> >> Modelica.Electrical.Analog.Basic.Ground g; >> >> >> >> Real v_out, i_out; >> >> >> >> equation >> >> connect(src_a.p,rs[1].p); >> >> connect(src_b.p,rs[2].p); >> >> connect(src_c.p,rs[3].p); >> >> connect(src_a.n,src_b.n); >> >> connect(src_b.n,src_c.n); >> >> connect(src_c.n,g.p); >> >> >> >> connect(rs[1].n,ls[1].p); >> >> connect(rs[2].n,ls[2].p); >> >> connect(rs[3].n,ls[3].p); >> >> >> >> connect(ls[1].n,D1.p); >> >> connect(D1.p,D4.n); >> >> >> >> connect(ls[2].n,D3.p); >> >> connect(D3.p,D6.n); >> >> >> >> connect(ls[3].n,D5.p); >> >> connect(D5.p,D2.n); >> >> >> >> connect(D1.n,D3.n); >> >> connect(D3.n,D5.n); >> >> connect(D5.n,r_l.p); >> >> connect(r_l.n,l_l.p); >> >> connect(l_l.n,D2.p); >> >> connect(D2.p,D6.p); >> >> connect(D6.p,D4.p); >> >> >> >> v_out = r_l.p.v - l_l.n.v; >> >> i_out = r_l.p.i; >> >> end br3ph1; >> >> >> >> When I run it using >> >> >> >> simulate(br3ph1,stopTime=1.0, numberOfIntervals=5000) >> >> >> >> I get a Simulation failed message. The output.log file contains the >> following: >> >> >> >> Assertion failed: current_state.real_buffer_ptr +n < >> NR_REAL_ELEMENTS, file memory_pool.c, line 99 >> >> This application has requested the Runtime to terminate it in an >> unusual way. >> >> Please contact the application's support team for more information. >> >> >> I am new to Modelica so this could well be operator error. Any help >> would be much appreciated. >> >> >> >> Regards, >> >> >> >> Pranesh Rao >> > _____________________________________________________________________ > Adrian Pop | Ph.D. Open Source Modelica > Consortium | Technical Coordinator Department of Computer Science | > http://www.ida.liu.se/~adrpo Linköping University | > phone:+46 76 2343499/+46 13 285781 S-581 83 Linköping, Sweden | > fax: +46 13 142231 OSMC & LiU/IDA/PELAB | office: 3B:478 > > __________________________ Ce message (et toutes ses pièces jointes éventuelles) est confidentiel et établi à l'intention exclusive de ses destinataires. Toute utilisation de ce message non conforme à sa destination, toute diffusion ou toute publication, totale ou partielle, est interdite, sauf autorisation expresse. L'IFP décline toute responsabilité au titre de ce message. This message and any attachments (the message) are confidential and intended solely for the addressees. Any unauthorised use or dissemination is prohibited. IFP should not be liable for this message. Visitez notre site Web / Visit our web site : http://www.ifp.fr __________________________
