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Failed to find a solution on popped up while simulated a 2 spiral coils
Posted 27.06.2016, 05:20 GMT-4 Low-Frequency Electromagnetics Version 4.4 2 Replies
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Hello everyone
I am trying to model a 2-spiral coil system consisting of transmitter coil and receiver coil.
I use the magnetic field and electrical circuit physics and time dependent study in order to get the induction voltage and magnetic flux density value.
I set the coils as single turn coil with circuit current as the coil excitation. I chose a sine source with voltage source of 2 V and frequency of 500 kHz.
But, I got an error like this:
Failed to find a solution.
Singular Matrix
For mesh-case 0 There are 1958 degrees of freedom that do not occur in any equation (empty columns in matrix) for the variable comp1.mf.Vcoil.
at coordinates: (-0.00556995,-0.00127249,-0.000349562), .........
Last time step is not converged.
-Feature: Time-Dependent Solver 1 (sol2/t1)
Would you like to give me some advise on how to simulate this correctly?
I really appreciate any help you can provide.
Thank you very much
I am trying to model a 2-spiral coil system consisting of transmitter coil and receiver coil.
I use the magnetic field and electrical circuit physics and time dependent study in order to get the induction voltage and magnetic flux density value.
I set the coils as single turn coil with circuit current as the coil excitation. I chose a sine source with voltage source of 2 V and frequency of 500 kHz.
But, I got an error like this:
Failed to find a solution.
Singular Matrix
For mesh-case 0 There are 1958 degrees of freedom that do not occur in any equation (empty columns in matrix) for the variable comp1.mf.Vcoil.
at coordinates: (-0.00556995,-0.00127249,-0.000349562), .........
Last time step is not converged.
-Feature: Time-Dependent Solver 1 (sol2/t1)
Would you like to give me some advise on how to simulate this correctly?
I really appreciate any help you can provide.
Thank you very much
2 Replies Last Post 28.06.2016, 09:05 GMT-4
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Posted:
8 years ago
This is 3D, right? Have you defined an electric conductivity to all domains? Even air should have a non-zero value, 1 S/m will do.
Regards
Jens
Regards
Jens
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Posted:
8 years ago
Hello Jens..
Yes, it is 3D and I have defined the air conductivity as 10 S/m.
I have read all thread with simillar problem. It is said that there is a problem on the material definition and boundary condition.
I have rechecked the materials and BC, but I think everything is fine..
Do you have any advice?
Thank you, Jens
Regards,
Annisa
Yes, it is 3D and I have defined the air conductivity as 10 S/m.
I have read all thread with simillar problem. It is said that there is a problem on the material definition and boundary condition.
I have rechecked the materials and BC, but I think everything is fine..
Do you have any advice?
Thank you, Jens
Regards,
Annisa