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28-29 November 2012 Constanta

Modern methods for evaluation of electromagnetic compatibility of stationary photovoltaic systems. 28-29 November 2012 Constanta. Trends at the photovoltaic (PV) systems. Structure of a small PV system. Issues with the Electromagnetic Compatibility (EMC) in the small PV systems.

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28-29 November 2012 Constanta

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  1. Modern methods for evaluation of electromagnetic compatibility of stationary photovoltaic systems 28-29 November 2012 Constanta

  2. Trends at the photovoltaic (PV) systems

  3. Structure of a small PV system

  4. Issues with the Electromagnetic Compatibility (EMC) in the small PV systems • Lightning • Disturbances in the power supply • External electromagnetic fields • Disturbances from the PV system components • Standards for ЕМС • Certification

  5. Advantage of the simulation • Mistakes are discovered during the design stage • Different construction approaches are easily checked • Multiple physical tests are not necessary

  6. Main numerical methods for simulation • Finite-Difference Time-Domain Method (FDTD); • Finite Element Method (FEM); • Method of Moments (MoM) / Boundary Element Method – (BEM); • Composite methods • All of them are based on Maxwell’s equations

  7. Discretization of objects Coarse Fine

  8. Pros and cons of the basic simulation methods

  9. Software products for performing electromagnetic simulation • CST Studio • Agilent ADS, EMPro • ANSYS HFSS • Remcom XFDTD • FEKO • Rich functionality • High price (50 000 $+) • Agile licensing

  10. System requirements for simulations • Personal computer– for simulation of relatively simple objects; • Distributed systems – using several personal computers simultaneously, for complicated simulations; • Personal supercomputers– specialized computer systems,including processors with hundreds of cores, suitable for very complicated simulations.

  11. System requirements for simulations (continued) Distributed system Personal supercomputernVidia S1070, 4x228 cores, 16GB GDDR5, 4 TFlops

  12. Future trends • Raise of the number of small PV systems worldwide • More tight requirements for EMC • Higher requirements for design • More frequent use of software for simulation during the design stage

  13. Conclusion • The main methods for electromagnetic simulation are analyzed; • The choice of software for PV systems depends on the methods that are implemented in it; • Multicore, multiprocessor systems are requires for lowering the simulation time.

  14. Thank you for your attention !

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