Oswald Elektromotoren Gmbh

Other

Bruker Hts Gmbh

Johannes Oswald

Thomas Reis

Alexander Usoskin

Thomas Kowalski

Johannes Teigelkötter

Alexander Stock

Bernhard Oswald

Alexander Rutt

Michael Walter

The invention relates to an electric machine with a stator (), with a rotor and with multiple machine coils (). The electrical machine comprises a cooling device, which is suitable for cooling a superconducting material to at least below a transition temperature. Windings () of at least two machine coils () consist of the superconducting material and are assigned to different winding groups. The windings () are operatively connected with the cooling device, in order to cool the windings () to below the transition temperature. The electrical machine comprises an open-loop or closed-loop controlled power supply device, electrically conductively connected with the windings (), for the supply of electrical power and controlling of the machine coils (). At least two winding groups are each electrically-conductively connected with a separate, open-loop or closed-loop controlled power output stage () of the power supply device. The separate, open-loop or closed-loop controlled power output stages () are arranged within the thermal insulation area () of the electric machine delimited by the thermal insulator.

Electrical machine

A method for manufacturing a high temperature superconductor (=HTS) coated tape (), with the following steps: preparation of a substrate tape (), deposition of at least one buffer layer (), deposition of an HTS film (), deposition of a metallic protection layer () on the HTS film () and deposition of a metallic shunt layer () is characterized in that, prior to deposition of the metallic shunt layer (), the partially prepared coated tape () undergoes a laser beam cutting in order to provide a desired tape form, wherein the laser beam cutting is applied together with a gas flow and/or a liquid flow (). The method reduces the loss of critical current and reduces or avoids a deterioration of the critical temperature in a HTS coated tape due to tape cutting.

Method for manufacturing a HTS coated tape with laser beam cutting

Turbine apparatus for a hydroelectric power station, with a turbine impeller, which is capable of rotating about a turbine rotary spindle, which is in particular arranged vertically, with turbine blades (), which are fitted at an angle with respect to the turbine impeller (), in particular a fixed angle, with a generator, which converts the mechanical rotation energy of the turbine impeller into electrical energy, wherein the generator is in particular an annular generator (), with an annular rotor () and a stator (), which is correspondingly arranged in annular fashion, wherein the turbine rotary spindle () is coupled to the rotor () in such a way that it is fixed against rotation, and the rotation about the turbine rotary spindle () takes place by means of a hollow shaft (), with a pot-like receptacle (), into which a fixed bearing journal () with movable bearings () arranged around it is inserted, in particular directly, and the turbine impeller () and the rotor () are capable of rotating about the bearing journal ().

Turbine apparatus

Growing community of inventors

Miltenberg, Germany

Johannes Oswald