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Examples of successful simulation in the development cycly of Kolektor Etra

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Examples of successful simulation in the development cycly of Kolektor Etra

  1. 1. dr. Nikola Jakšić 2016 ANSYS Convergence Conference Ljubljana, Slovenia, 25 May 2016 Examples of successful simulation in the development cycle of Kolektor Etra KOLEKTOR ETRA d.o.o.
  2. 2. • About Kolektor Etra • Main transformer parts • Noise – TrafoS application: • Transformer core dynamics • Winding dynamics • Complete transformer dynamics – Winding magnetic forces • Design optimization Overview 2016 ANSYS Convergence conference Ljubljana, Slovenia, 25 May 2016 1
  3. 3. • Type of enterprise: Limited Liability Company • Total company area: 44.769 m2 • Buildings: 19.638 m2 • Employees: 330 • Technical sector: 72 Kolektor ETRA 2016 ANSYS Convergence conference Ljubljana, Slovenia, 25 May 2016 2
  4. 4. Main transformer parts 2016 ANSYS Convergence conference Ljubljana, Slovenia, 25 May 2016 3 Transformer core Winding Drying of active part. Electrical tests in laboratory.
  5. 5. • TrafoS was developed in cooperation with UL FS LADISK. • MATLAB GUI application runs ANSYS in background. • Prediction of transformer noise. TrafoS 2016 ANSYS Convergence conference Ljubljana, Slovenia, 25 May 2016 4 TrafoS application.
  6. 6. TrafoS – transformer core 2016 ANSYS Convergence conference Ljubljana, Slovenia, 25 May 2016 5 Static analysis for determining normal pressure due to core clamping. Modal analysis of laminated core with inclusion of interlaminar friction effects*. * Pirnat, M., Čepon, G., Boltežar, M. (2013), Introduction of the linear contact model in the dynamic model of laminated structure dynamics: an experimental and numerical identification, Mech. mach. theory, vol. 64, pp. 144-154.
  7. 7. TrafoS – windings 2016 ANSYS Convergence conference Ljubljana, Slovenia, 25 May 2016 6 Winding model. Winding harmonic response due to magnetic forces.
  8. 8. TrafoS – transformer dynamics 2016 ANSYS Convergence conference Ljubljana, Slovenia, 25 May 2016 7 Creo 3D model for technical drawings. Finished ANSYS model with core, windings and oil. Solid-fluid interaction included. Harmonic analysis of the model.
  9. 9. • Calculation of electromagnetic forces Winding magnetic forces 2016 ANSYS Convergence conference Ljubljana, Slovenia, 25 May 2016 8 Magnetic flux density. Magnetic forces. 2D axisymmetric model. Magnetic core Air Low voltage winding High voltage winding
  10. 10. Design optimization (Virtual prototyping) 2016 ANSYS Convergence conference Ljubljana, Slovenia, 25 May 2016 9 Structural integrity is ensured by the numerical modelling
  11. 11. Design optimization (Virtual prototyping) 2016 ANSYS Convergence conference Ljubljana, Slovenia, 25 May 2016 10 m=323000kg crane lifting hydraulic jacks lifting railway transport Fmax = m*g/2
  12. 12. • The Expert System Design optimization (Automatic) 2016 ANSYS Convergence conference Ljubljana, Slovenia, 25 May 2016 11
  13. 13. • Wall of the transformer tank with ribs – parametric model Design optimization (Automatic) 2016 ANSYS Convergence conference Ljubljana, Slovenia, 25 May 2016 12
  14. 14. • Wall of the transformer tank with ribs – APDL created model Design optimization (Automatic) 2016 ANSYS Convergence conference Ljubljana, Slovenia, 25 May 2016 13
  15. 15. Design optimization (Automatic) 2016 ANSYS Convergence conference Ljubljana, Slovenia, 25 May 2016 14 EXCEL • Input data • Output data PYTHON • Process driver • Outer optimization loop ANSYS • Solver for the mechanical model • Main optimization driver LATEX • Report creator
  16. 16. Design optimization (Automatic) 2016 ANSYS Convergence conference Ljubljana, Slovenia, 25 May 2016 15 • Resulting report
  17. 17. Design optimization (Automatic) 2016 ANSYS Convergence conference Ljubljana, Slovenia, 25 May 2016 16 •Resultingreport
  18. 18. • 3D models  Ansys WB • Parametric modelling  Ansys APDL • Both approaches are used! • Both approaches are needed! Conclusion 2016 ANSYS Convergence conference Ljubljana, Slovenia, 25 May 2016 17
  19. 19. Thank you for your attention.

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