Aktuelle Forschungsprojekte

Image Reduction of primary noise sources of fans
Image Filter Tests
Image Verification of storage suitability of cryo tubes
Image Air-flow test rig for fan characteristic measurement
Image Low Temperature Tribology
Image Testzentrum PLWP at ILK Dresden
Image 3D - Air flow sensor
Image Innovative small helium liquefier
Image Swirl-free on the move...
Image High temperature heat pump
Image Measurement of insulated packaging
Image Lifetime prediction of hermetic compressor systems
Image Pulse-Tube-Refrigerator with sealed compressor
Image Reducing the filling quantity
Image Development of a Cryogenic Magnetic Air Separation Unit
Image Practical training, diploma, master, bachelor

You are here:   /  Home


Intelligent innovative power supply for superconducting coils

Dr. Andreas Kade

+49-351-4081-5117

Compact, powerful power supply with 4-quadrant converter

The aim of the R&D project is the development of an intelligent innovative power supply as a 4-quadrant controller and energy storage device, which consists of a communicating system between quench protection and current flow control at the superconductor. The development shall be characterized by safety, compactness, accuracy, user friendliness, good price-performance ratio and modularity. The combination of cryogenic and warm electronics will provide significant advantages.
The functional model developed and constructed for this purpose has the following parameters and properties:

  • 4-quadrant power supply with ± 25 V and ± 14 kA
  • Constant voltage quench protection system
  • Cryogenic switch (cryogenic)
  • Energy storage system

The components for the energy storage system consists of individual cells with a capacity of 3000 F and a voltage of 2.7 V. 51 modules are connected in parallel, each with 10 individual cells, to form a capacitor bank. This results in a capacity of 15,300 F and a voltage of 25 V. A 3 kA, 30 V device serves as power supply, which has already been successfully tested on a cryogenic power supply.
In the next step, the configured capacitor modules for the energy storage and the boards of the 4-quadrant controller, see Figure 1, were combined in three switch cabinets, see Figure 2. The completed switch cabinet is shown in Figure 3. First results were presented at the 16th Cryogenics in October 2021.
 


Your Request

Further Projects

Image

Tribological investigations of oil-refrigerant-material-systems

Modified Almen-Wieland wear testing machine

Image

Electrical components in refrigeration circuits

High voltage tests under real conditions

Image

Influenced melting point of water by magnetic field

Controlled sub-cooling of products in freezing processes

Image

Investigation of materials

Investigations regarding the compatibility of materials with refrigerants, oils and heat transfer fluids

Image