Piller Group Gmbh

Rwe Piller Gmbh

Armin Klauenberg

Norbert Ueffing

Hilmar Darrelmann

Uwe Schrader-Hausmann

Reinhard Engelhardt

Bernd Rosebrock

Detlev Seidel

An apparatus for uninterruptible power supply (UPS) comprises a rotating electric machine having a generator winding and a plurality of motor windings. The motor windings of the plurality of motor windings are electrically insulated from the generator winding and from one another. The UPS further comprises, for each motor winding, an energy storage for electric energy and an inverter which outputs an alternating current and via which the energy storage is connected to the respective motor winding.

Device for uninterruptible supply of power, comprising an energy storage means and a rotating electric machine

A wind power station comprises a wind rotor; a transmission mechanically coupled to the wind rotor; an asynchronous generator having a generator rotor mechanically coupled to the transmission, and a generator stator electrically coupled to a power grid; and a protection unit protecting the generator and the transmission against accidental breakdowns of an alternating voltage provided by the power grid. The Protection unit includes at least one choke electrically arranged between the power grid and the generator stator, and a synchronous electrical machine electrically coupled to the choke.

Protection for wind power station

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Osterode, Germany

Armin Klauenberg