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Coexistence & Electromagnetic Compatibility

Ingenieur misst elektromagnetische Signale mit Antenne und Spektrumanalysator im Labor

Research Focus Areas

Electromagnetic Compatibility (EMC) is a crucial design criterion. If compliance to certain standards is not given, products cannot be placed in the market. EMC issues frequently disrupt project progress, causing delays and additional costs.

The solution to this problem is to incorporate EMC at the beginning of the design process – before prototype hardware is manufactured - by simulation of Electromagnetic Interference (EMI) and immunity.

We master the general EMI simulation, the modeling process and the connection between all the different model categories, from circuit models over 3D models to mathematical & behavioral models up to surrogate models. AI and machine learning are employed to reduce simulation times vastly and enable global optima search.

In addition, measurements in accordance with applicable standards and for modeling are part of our validation processes. Our main technology fields are power electronic as well as wireless and wired communication and wireless power transfer.

Research Expertise

  • Modeling procedures of all involved components (actives, passives, printed circuit boards, housing, cables and cable harnesses, current bars, antenna, etc).
  • Modeling and modeling procedures in different complexity levels: 3D models, circuit level models up to mathematical models. Reduction of the complexity of the models
  • Machine Learning & AI usage to create surrogate models for global optima search
  • EMC measurements (conducted and radiated)
  • Usage of commercial toolchains (Ansys, CST, Keysight ADS, MATLAB,.. ) as well as open source tooling (LTspice, Python frameworks, etc.)
  • Active EMI filtering

Uses

Procedures to pre-estimate EMI of a power electronic system by simulation

Active EMI filtering

Modeling of EMC testing procedures and setups, e.g. Bulk Current Injection (BCI)

Cost reduction for EMC filters using surrogate model and global optimization

Active EMI filtering

EMI filters in power electronic systems are costly devices and bulky as well, often consuming one third oft he available volume. With active EMI filters we can introduce solutions without these disadvantages, like noise cancellation known from headphones.

Contact

Business Development
Peter Rechberger MSc
Business Development Power Electronics
Graz
Head of Research Unit
DI Dr. Bernhard Auinger
Head of Research Unit Coexistence & Electromagnetic Compatibility
Graz

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