Search found 19 matches
- 22 Feb 2023, 02:57
- Forum: ElmerSolver
- Topic: Matrix Creation for Circuit Calculations
- Replies: 4
- Views: 685
Re: Matrix Creation for Circuit Calculations
Hey Lauri, thanks for your great repsonse! I simplified my example to match the test case https://github.com/ElmerCSC/elmer-elmag/tree/main/CircuitBuilder/2D/circuit_examples/current_source . I also edit your points into the example, but after quite a while of tests i'm sure that it's not because of...
- 19 Feb 2023, 02:39
- Forum: ElmerSolver
- Topic: Matrix Creation for Circuit Calculations
- Replies: 4
- Views: 685
Re: Matrix Creation for Circuit Calculations
Hello everyone, maybe someone can check my sif file. I've been trying to convert my simulations with the circuit solver for a long time now, but I keep getting error messages and I'm a bit lost now. The circuit file is created with CircuitBuilder. Mesh with gmsh. The same case without the circuit de...
- 12 Feb 2023, 03:15
- Forum: ElmerSolver
- Topic: Statistics on ElmerSolver: number of DOFs, memory usage and CPU time
- Replies: 2
- Views: 247
Re: Statistics on ElmerSolver: number of DOFs, memory usage and CPU time
Hi Frederic, you can save this informations with "SaveData" "SaveScalars" Solver. The Keywords are "CPU Time", "CPU Memory" and "Dofs". Solver n Exec Solver = After Saving Procedure = "SaveData" "SaveScalars Filename = "results.da...
- 25 Jan 2023, 23:17
- Forum: ElmerSolver
- Topic: Calculation of self and mutual inductance for PMSM machines?
- Replies: 8
- Views: 1943
Re: Calculation of self and mutual inductance for PMSM machines?
I don't know if I really understand your last paragraph. You say that it would be enough to sweep only iq and set id to 0 to calculate the flux including the saturation. In my opinion this is a special case of what I described above where I would need to sweep id, iq and position. Your approach wou...
- 21 Jan 2023, 17:03
- Forum: ElmerSolver
- Topic: Calculation of self and mutual inductance for PMSM machines?
- Replies: 8
- Views: 1943
Re: Calculation of self and mutual inductance for PMSM machines?
Hi Mladen, I think the calculation of the machine parameter can be quiet hard. There are simply too many possibilities in modelling, especially for the control engineers. What your goal? The frozen permeability method is to seperate the field excitation by stator and magnets. The sum of both fields ...
- 21 Jan 2023, 16:26
- Forum: ElmerSolver
- Topic: Induced voltage in PMSM without Paraview
- Replies: 14
- Views: 3322
Re: Induced voltage in PMSM without Paraview
Hi Mladen,
thanks for sharing your files. circuit.definitions is missing.
Best regards
Fabian
thanks for sharing your files. circuit.definitions is missing.
Best regards
Fabian
- 08 Dec 2022, 02:07
- Forum: General
- Topic: Static vs Transient Simulation
- Replies: 16
- Views: 1957
Re: Static vs Transient Simulation
Just a short note for your mesh: For the transient calculation you need to split Body 10 into two parts. One like Body 9, just the half of the airgap. The second have to be the air of the slot opening.Further you need 2 curves between Body 9 and new Body 10 (mid of the airgap). Both curves lie direc...
- 07 Dec 2022, 18:12
- Forum: ElmerSolver
- Topic: Matrix Creation for Circuit Calculations
- Replies: 4
- Views: 685
Matrix Creation for Circuit Calculations
Meanwhile I'm confused how to set up equations for the matrix to calculate the coil values via CircuitsAndDynamics. Afters some tests by hand and the CircuitBuilder, I still have a deviation of the matrix B and open questions. Simple Example: https://github.com/ElmerCSC/elmer-elmag/tree/main/Circuit...
- 06 Dec 2022, 01:45
- Forum: General
- Topic: Static vs Transient Simulation
- Replies: 16
- Views: 1957
Re: Static vs Transient Simulation
As Kevin wrote, you need two surfaces that are coupled by a boundary condition. For a 2D model for example, gmsh says Physical Line for that. Both Lines are coupled by the MortarBC. You can add Target Boundaries, if necessary. Boundary Condition 1 Name = Sliding_Rotor End Boundary Condition 2 Name =...
- 30 Nov 2022, 19:25
- Forum: General
- Topic: Static vs Transient Simulation
- Replies: 16
- Views: 1957
Re: Static vs Transient Simulation
Hi,
it looks like your boundary is not correct at your transient calculation. The flux lines close within your rotor section with much higher saturation.
The order in your sif-file is hard to read^^ check your sliding boundary. Its not clear what your 2nd boundary no. 14 is.
Best regards
Fabian
it looks like your boundary is not correct at your transient calculation. The flux lines close within your rotor section with much higher saturation.
The order in your sif-file is hard to read^^ check your sliding boundary. Its not clear what your 2nd boundary no. 14 is.
Best regards
Fabian