Switching frequencies increase in order to obtain high efficiency and compact power electronic. In digital electronic the clock frequencies continually increase making EMI worse.
Electronic development in Denmark (and the rest of Europe) is often based on modules developed in the far east. The Danish companies integrate the different modules into one product. EMC is one of the big issues in this process.
Everything is going wireless, including IOT, and desense (degradation of sensitivity caused by nearby electronic) becomes more important.
International standards for EMC continually change and companies must adapt to new mandatory requirements.
Research scope
We have a strong interest in all kind of EMC. We are strong in conducted emission (<30 MHz) and EMI filtering including using hybrid magnetic. Another focus area is predicting EMC performance early in a project based on the used modules and EMC architecture. We are among the pioneers in using near-field scanning for hot spot finding and using the measured field as source for simulations and EMC architecture.
Accordingly, our research goals are to
- Making EMI filters smaller and more cost effective.
- Making and analysing EMC architecture in order to predict EMC performance early in the project.
- Understanding EMI with respect to wireless solutions.
Thereby the impact of our research is
- Increased feasibility in project execution where EMC will not be showstopper.
- Targeted EMI mitigation with fewer components (lower cost).
Research Topics
- Power electronic and EMC
- Hybrid magnetic structures for EMI filtering
- High frequency core loss measurement technics
- Connection between EMC at module level and system level
- 3D full wave simulations
- Module level measurements
- Near-field scanning
- Measured data as source for simulations
- Probe calibration
- Hot spot finding by help of plane wave spectrum
- Desense
- Source reconstruction
- Finding coupling paths by help of near-field scanning
- Applications of circuit and 3D full wave electromagnetic simulations.
Additional competences:
- Antennas and propagation
- OTA MIMO
Research group
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Kasper M. Paasch (Assoc. Prof, PhD)
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Daniel Lyngby Commerou (PhD Student)
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Wai Keung Mo (Engineer, PhD)
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Christian Christensen (Engineer)
Projects
Find selected projects here:
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Industrial Electronics Innovation (IEI), eWorkVehicle. EMC architecture for battery driven trucks, Read more
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Industrial Electronics Innovation (IEI), Hi5un MIE-35DWAC PV. EMC correct PCB layout and 3D full wave simulations of inverters for an advanced solar power cells, Read more
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Energy Technology Development and Demonstration Program (EUDP): eWorkVehiclePower – Hybrid fuel cell and battery powering unit for working vehicles. EMC work on DC-DC converters and system architecture.
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Industrial Electronics Innovation (IEI), eRadarSensor – Using mm-wave for monitoring garbage levels in large waste containers.
Publications
Find latest publications here:
2021
- Rezaei, H., Sorensen, M., Huang, W., Beetner, D., & Pommerenke, D. (2021). Analyzing the Influence of Imbalanced Two- or Three-Wire VHF LISN on Radiated Emissions from AC Cables. IEEE Transactions on Electromagnetic Compatibility. Read more
- Mo, W. K., Paasch, K. M., & Ebel, T. (2021). Optimal gapped boost in inductor design for power factor correction applications. In 2021 23rd European Conference on Power Electronics and Applications, EPE 2021 ECCE Europe IEEE. Read more
- Mo, W. K., Paasch, K., & Ebel, T. (2021). Study of geometrical effects on high frequency winding loss of air-gapped power inductor design with DC current impact. In 2021 IEEE 15th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG) IEEE. Read more
- Sorensen, M., Christensen, S. K., Vittarp, C., & Ebert, H. (2021). Investigation of the Workbench Faraday Cage Method, IEC 61967-5. I 2021 IEEE International Joint EMC/SI/PI and EMC Europe Symposium (s. 480-485). IEEE. Read more
2020
- Sorensen, M., Bonev, I. B., Franek, O., & Pedersen, G. F. (2020). Assessment of the Huygens' Box Method with Different Sources near Obstacles. IEEE Transactions on Electromagnetic Compatibility, 62(2), 433-442. Read more
- H. Rezaei et al. (2020). Source Reconstruction in Near-Field Scanning Using Inverse MoM for RFI Application," in IEEE Transactions on Electromagnetic Compatibility, vol. 62, no. 4, pp. 1628-1636, Aug. 2020, Read more
- W. Zhang et al. (2020). System-Level EMI of an Artificial Router System With Multiple Radiators: Prediction and Validation," in IEEE Transactions on Electromagnetic Compatibility, vol. 62, no. 4, pp. 1601-1610, Aug. 2020, Read more
2019
- Mo, W. K., Paasch, K., & Ebel, T. (2019). Parasitic couplings of 3-phase EMI filter design for 1KW 3-phase boost converter. I IEEE European Power Electronics Conference: EPE 2019 IEEE. Proceedings of the 21st European Conference on Power Electronics and Applications, EPE 2019 ECCE Europe, Read more
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Mo, W. K., Paasch, K., & Ebel, T. (2019). Hybrid magnetic EMI filter design for Low Voltage DC distribution (LVDC) network. I The 3rd IEEE ICDCM International Conference on DC Microgrids IEEE, Read more