Abstract: A method increases the power of an AC grid by means of the conductors which connect the grid coils of the grid transformer. The conductor-ground voltages and the AC phase voltage are kept lower than a voltage value. The sinusoidal phase voltages of the expanded grid are increased by up to 25% compared to the AC phase voltages, while the phase currents always remain sinusoidal. To this end, the ? generators couple harmonic voltages between the conductors and ground and reduce the amplitude of the resulting hypersinusoidal conductor-ground voltages such that they always remain below the Uix value. In addition, the ? generators control the transferred grid power.

Abstract: The invention relates to a method for increasing the power of an AC grid by means of the conductors (4) which connect the grid coils (3), (5) of the grid transformer (2), (6), wherein the conductor-ground voltages (Ule) and the AC phase voltage (Uac) are kept lower than a voltage value (Ulex). The sinusoidal phase voltages (Uhac) of the expanded grid are increased by up to 25% compared to the AC phase voltages (Uac), while the phase currents (Iac) always remain sinusoidal. To this end, the ? generators (13), (14) couple harmonic voltages ?U between the conductors (4) and ground (7) and reduce the amplitude of the resulting hypersinusoidal conductor-ground voltages (Uhac) such that they always remain below the Uix value. In addition, the ? generators control the transferred grid power (smart grid). The method can be used in existing AC installations having overhead conductors or ground cables without modification to the line in order to redundantly transfer 25% more power, and with 44% less transmission loss.

Abstract: A bidirectional DC-to-DC converter is configured to convert electrical energy from a first and second DC source. The bidirectional converter includes an output capacitor providing an output voltage and a first and second inductor. The first inductor is arranged between a positive connection of the second DC source and a first contact of a first switch. The second inductor is arranged between a negative connection of the first DC source and a second contact of the first switch. A buffer capacitor is arranged between a negative output of the first DC source and a positive output of the second DC source. A second and third switch are arranged in series with the first switch. The second switch is arranged between the first contact of the first switch and the positive DC output. The third switch is arranged between the second contact of the first switch and the negative DC output.

Abstract: A bidirectional DC-to-DC converter is configured to convert electrical energy from a first and second DC source. The bidirectional converter includes an output capacitor providing an output voltage and a first and second inductor. The first inductor is arranged between a positive connection of the second DC source and a first contact of a first switch. The second inductor is arranged between a negative connection of the first DC source and a second contact of the first switch. A buffer capacitor is arranged between a negative output of the first DC source and a positive output of the second DC source. A second and third switch are arranged in series with the first switch. The second switch is arranged between the first contact of the first switch and the positive DC output. The third switch is arranged between the second contact of the first switch and the negative DC output.

Abstract: A liquid-cooled electromagnetic component (reactor, transformer) including a plurality of disc-shaped coils with one or more turns and a flat radiator located between them, wherein at least two disc coils are assigned to a flat radiator, and in which all the turns (turns of the coil) are in direct thermal contact with a surface of the flat radiator. This component is used in power converter installations and in midfrequency installations.

Abstract: An encryption for a distributed global online backup system with global two-stage deduplication in the absence of an indexing database where data blocks are encrypted using their SHA-1 signatures as encryption keys.

Abstract: An encryption for a distributed global online backup system with global two-stage deduplication in the absence of an indexing database where data blocks are encrypted using their SHA-1 signatures as encryption keys.

Abstract: An encryption for a distributed global online backup system with global two-stage deduplication in the absence of an indexing database where data blocks are encrypted using their SHA-1 signatures as encryption keys.

Abstract: The solar combination panel, including a solar panel and a heat exchanger, has a tubular heat exchanger at the back of a solar panel, by which the solar panel can always be operated in the optimal temperature range so as to improve the electricity yield. A host of heat collector sheets, which are provided as heat collectors and are attached by cementing, are located on the back cover film of the solar panel. Fluted metal adhesive plates are located on the heat collector sheets. The fluted metal adhesive plates are likewise cemented and in the fluting of which a metal pipe is geometrically cemented such that in this way the transmission of power from the heat exchanger to the solar panel is minimized. A method for producing the solar combination panel is described.

Abstract: A liquid-cooled electromagnetic component (reactor, transformer) including a plurality of disc-shaped coils with one or more turns and flat radiators located between them, wherein at least two disc coils are assigned to a flat radiator, and in which all the winding elements (turns of the coil) are in direct thermal contact with the surfaces of the flat radiators. This component is used in power converter installations and in midfrequency installations.

Abstract: An encryption for a distributed global online backup system with global two-stage deduplication in the absence of an indexing database where data blocks are encrypted using their SHA-1 signatures as encryption keys.

Abstract: In order to reduce the commutation inductance of series-connected controllable semiconductor components (V1-V6), the latter are connected, in an essentially orthogonal manner and at a predeterminable distance (a), via spur double striplines (6, 6') to essentially planar main lines (5, 5'). All of the double striplines (5, 5'; 6, 6') have a layered structure and are mutually insulated by a thin insulating layer (7), with the result that a minimum current area is achieved. The controllable semiconductor components (V1-V6) are accommodated closely adjacent to freewheeling diodes in a module (10), the heat of which can be dissipated by cooling elements (8). Bipolar transistors having an insulated gate (IGBTs) are preferably used as controllable semiconductor components (V1-V6).