Research

The research work of the PE group is embedded in the Digital Society Institute (DSI). In the Power Electronics and EMC (PE) group we do research on the hardware, controls and EMC aspects of energy conversion systems, often in the context of challenging applications. Our research focuses on five principal areas

  1. Battery Electronics: Apply power electronics to integrate batteries in systems and extend the lifetime of the battery. Improve reliability by new packaging technologies and EMC immunity solutions.  
  2. Electromagnetic Compatibility: Modelling of conducted and radiated electromagnetic interference and power quality. Development of measurement and test techniques to achieve EMC from PCB up to system level.
  3. Energy Access: The theme is small solar systems with battery storage to provide off-grid electric services to 3 billion people living in energy poverty.  Sustainable socio-technical solutions are expected to be scalable, regionally relevant, holistic, and leverage 21st century technologies.
  4. Power Electronics Technology: investigate power semiconductor devices and advanced packaging techniques. New bandgap semiconductor material, GaN and SiC makes it possible to smaller power supplies and high performance RF amplifiers.
  5. Power and Energy Measurement Systems: accurate measurements of electrical power flow and energy efficiencies in electrical systems for reducing the carbon footprint. New concepts are applied to improve accuracy, explore fundamental limitations and devise calibration methods. 

Battery Electronics

The research is about the electronics that monitor battery cells, the power electronics responsible for charging and discharging batteries, and investigating the possibility to integrate power electronics into battery. The goals are to extend the lifetime of the battery and  improve reliability by new packaging technologies and EMC immunity solutions. 

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Electromagnetic Compatibility

Main subjects for research of the EMC group were and are: modeling of radiated emission and immunity of circuits at IC and PCB level, signal integrity of high speed electronic circuits, development of test techniques for high intensity electromagnetic fields, and the combination of two or more numerical methods for optimum prediction of EMI. An upcoming area of interest is intentional EMI, or EM terrorism. Test techniques for developing repeatable, reproducible and accurate high field strengths will gain increased interest.

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Energy Access

The research is on small solar systems with battery storage to provide off-grid electric services to 3 billion people living in energy poverty.  Sustainable socio-technical solutions are expected to be scalable, regionally relevant, holistic, and leverage 21st century technologies with exponentially declining prices.

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Power Electronics Technology

The power electronics technology program does research on power semiconductor devices and advanced packaging techniques. The new generation of wide bandgap semiconductor material, GaN and SiC makes it possible to smaller power supplies, that can be up 99% efficient. RF systems are also growing in power and efficiency benefitting from the new semiconductor materials.

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Power & Energy Measurement Systems

The research contributes to accurate measurements of electrical power flow and energy efficiencies in electrical systems for reducing the carbon footprint. New concepts are applied to improve accuracy, explore fundamental limitations and devise calibration methods.  The application include voltage, current and power measurements in the electrical grid related to power converter connected renewables (wind, solar) and grid monitoring devices, efficiency measurements on power electronic converters and measurements on batteries.

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Current Projects by Research Area

Battery Electronics
Energy Access