4 ms·
It would seems like the superconductor works on stator and rotor like an induction generator. Edit: looks like it's just the rotor: Some quotes from the test:
by tgtweak 8y ago
It would seems like the superconductor works on stator and rotor like an induction generator.
Edit: looks like it's just the rotor:
Some quotes from the test:
"The EcoSwing rotor is made up of two parts which are thermally decoupled by a vacuum chamber. The part responsible for the bearing and the mechanical connection of the generator rotor is operated at ambient temperatures; the electromagnetic part of the generator rotor is designed to operate at cryogenic temperatures. This places particular requirements on the test bench: The generator has to be cooled down to 30 K (that is about -240 °C) using a closed-cycle gas cooling. While this was the first time that such a cooling system has been operated at Fraunhofer IWES, it got confirmed that this type of cooling performed very reliably."
"Sometimes less really is more: 40 per cent less weight and smaller dimensions than a comparable permanent magnet synchronous generator – these EcoSwing features are only possible thanks to superconductivity. With this solution just a fraction of the magnetically active material is required to outperform the power density of conventional generators. Since superconductors have practically no electrical resistance, the size of the conductor cross-section can be drastically reduced. This is a highly promising property for the development of future turbine generations."
Image: https://www.iwes.fraunhofer.de/en/press---media/ecoswing-superconducting-generator-proves-itself-on-the-test-ben/_jcr_content/contentPar/sectioncomponent/sectionParsys/imagerow/imageComponent2/image.img.large.jpg/1527518952113_EcoSwing-KryogeneratorKuehlung68.jpg https://www.iwes.fraunhofer.de/en/press---media/ecoswing-sup...
Article:
https://www.iwes.fraunhofer.de/en/press---media/ecoswing-superconducting-generator-proves-itself-on-the-test-ben.html https://www.iwes.fraunhofer.de/en/press---media/ecoswing-sup...