Laboratory for Power Electronics and Energy Storage

Brief description

The Power Electronics Laboratory focuses on the design, modeling, and analysis of magnetic components. In addition to key parameters such as inductance, coupling, and core and winding losses, this also includes parasitic elements.

Another focus is on the experimental and analytical investigation of related magnetic and dielectric materials with regard to their magnetic, electrical, thermal, and frequency-dependent properties.

In addition, the scope of activities includes the design and commissioning of automated test stations as well as controlled power electronics topologies, including the development and integration of suitable driver and filter concepts. The Power Electronics Laboratory is established within the ECPE network as a center of excellence for magnetic components.

Location: The Power Electronics and Energy Storage Laboratory is located in Room 6-208 on the Friedrich Streib Campus.

Laboratory equipment

  • L(I) Tester – Power Electronics Laboratory
  • Precision Resistance Meter – Hioki 3541 Resistance HiTester
  • Impedance Analyzer (up to 120 MHz) – Keysight E4990A
  • Power Generator (11 kW, 1000 Vp, 100 App, 450 kHz) – TTG1000SiC MSPM
  • Pulsed Current Generator (100 A, 200 kHz) – Dr. Kirjuchin
  • Spectrum Analyzer (3 GHz) – Rohde & Schwarz FPL1003
  • Line-in-simulation network (LISN) – Rohde & Schwarz ESH3-Z
  • Oscilloscope (4 channels, 1 GHz) – Teledyne LeCroy WaveRunner 4104A
  • Oscilloscope (4 channels, 1 GHz) – Teledyne LeCroy WaveSurfer 510
  • DC power supply (10 kW, 340 A, 80 V) – EA-PS 8080-340
  • Electronic Load (4.8 kW, 400 A, 80 V) – EA-EL 9080-400

Courses held in the laboratory

Techniques, methods and standards established in the laboratory

  • Design and analysis of magnetic components using small-signal and large-signal measurements as well as calorimetry, accompanied by electromagnetic and thermal FEM simulations
  • Determination of core losses under DC pre-magnetization (IEC 60404-6)
  • Determination of small-signal permeability and permittivity of core materials
  • Determination of the small-signal permittivity of insulation materials; determination of the electrical strength (AC, DC, pulse) of components and insulation materials
  • Determination of the partial discharge behavior of components and insulation materials
  • Measurement of DC and push-pull interference

Research and topics for cooperation

  • Design and Analysis of Magnetic Components for All Power and Frequency Ranges
  • Effects of steep switching edges in SiC and GaN applications on magnetic components:
  • Nonlinear potential distributions and field peaks in windings
  • Partial discharges
  • Laminated ferrite cores:
  • Reduction of core losses in power applications
  • Improvement of filtering performance in filter applications
  • Magnetic and dielectric material properties of cores and insulation materials

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