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

A device for uninterruptible power supply comprising

• a rotating electric machine having a generator winding and a plurality of motor windings, the motor windings of the plurality of motor windings being electrically insulated from the generator winding, and the motor windings of the plurality of motor windings being electrically insulated from one another, and,
• for each motor winding of the plurality of motor windings, an energy storage for electric energy and an inverter outputting an alternating current, wherein the energy storage is connected to the respective motor winding via the inverter,
• wherein the motor windings of the plurality of motor have equal turn numbers,
• wherein the generator winding, the motor windings of the plurality of motor windings and the inverters connected thereto are three-phase,
• wherein the inverters connected to the motor windings of the plurality of motor windings are synchronized with respect to one another,
• wherein the generator winding has at least ten times as many windings per phase as the motor windings of the plurality of motor windings.