Abstract: An electrical machine (10), in particular a machine which can be operated in electric generator mode and/or in electric motor mode, comprising a rotor (14) which has a shaft (13), wherein a part of a turbomachine (68) is formed on the shaft (13) and the part is a fan (60), wherein the fan (60) has a circumference (83) with a circumferential direction (85), and a housing (63) of an electrical unit (45) is adjacent to the fan (60) and serves as a housing of the turbomachine (68), and there is a gap (65) between the fan (60) and the housing (63) of the electrical unit (45), characterized in that the gap (65) has a radial width (B65R) which has a different magnitude depending on a circumferential position (U602) on the fan (60) which is arranged on the shaft (13).

Abstract: An electrical machine (10), in particular a machine which can be operated in electric generator mode and/or in electric motor mode, comprising a rotor (14) which has a shaft (13), wherein a part of a turbomachine (68) is formed on the shaft (13) and the part is a fan (60), wherein the fan (60) has a circumference (83) with a circumferential direction (85), and a housing (63) of an electrical unit (45) is adjacent to the fan (60) and serves as a housing of the turbomachine (68), and there is a gap (65) between the fan (60) and the housing (63) of the electrical unit (45), characterized in that the gap (65) has a radial width (B65R) which has a different magnitude depending on a circumferential position (U602) on the fan (60) which is arranged on the shaft (13).

Abstract: A capacitor (1) wherein the first voltage layer (11) and the second voltage layer (21) form an overlap region (4) in which the first voltage layer (11) and the second voltage layer (21) are arranged parallel to one another, separated by a gap (5), on a base side (6) of the capacitor (1), directly above one another, and wherein the at least one first pole terminal (12) extends in lateral continuation of the first voltage layer (11) and, in parallel with this, the at least one second pole terminal (22) extends in lateral continuation of the second voltage layer (21) over and beyond the overlap region (4), and in this way form at least one contact lug pair (7) protruding from the base side (6) of the capacitor (1).

Abstract: The disclosure relates to a power transmission arrangement having an electromagnetic convertor unit, the input side of which can be coupled to an AC voltage source, a first DC voltage circuit, the input side of which is coupled to the electromagnetic converter unit and the output side of which can be coupled to a first electrical DC voltage sink, and which is designed to provide a first DC voltage on the output side, and a second DC voltage circuit, the input side of which is coupled to the electromagnetic converter unit and the output side of which can be coupled to a second electrical DC voltage sink, and which is designed to provide a second DC voltage on the output side, wherein one of the DC voltage circuits has a DC voltage converter for the purpose of adjusting its output-side DC voltage.

Abstract: A system for charging at least one energy reservoir cell in a controllable energy reservoir for controlling/supplying electrical energy to an n-phase electrical machine. The controllable energy reservoir has n parallel energy supply branches each having at least two series connected energy reservoir modules, each encompassing at least one electrical reservoir cell having an associated controllable coupling unit. The energy supply branches are connectable to a reference bus and a respective phase of the machine. As a function of control signals, the coupling units interrupt the respective energy supply branch or bypass the cells or switch the associated cells into the respective energy supply branch. To enable charging of at least one cell, at least two phases of the machine are connectable via at least one respective freewheeling diode to a positive pole of a charging device, and the reference bus is connectable to a negative pole of the device.

Abstract: The invention relates to a system (100) with a battery charging device (20) with output terminals and an vehicle electrical system power supply stage (10). The vehicle electrical system power supply stage has a step-up/step-down converter (12), which is designed to raise an input voltage of the vehicle electrical system power supply stage to an intermediate circuit voltage, a direct current intermediate circuit (13), which is coupled to the step-up/step-down converter (12) at intermediate circuit nodes (14a, 14b), and a vehicle electrical system d.c.-d.c. converter (11), which is coupled to the direct voltage intermediate circuit at the intermediate circuit nodes, and which is designed to convert the intermediate circuit voltage into a direct voltage for a vehicle electrical system (1, 2), the output terminals of the battery charging device (20) being coupled to the direct voltage intermediate circuit (13) via the intermediate circuit nodes (14a, 14b).

Abstract: Switchable energy storage device (10), having: —at least two energy storage modules (1) connected in series, wherein each energy storage module (1) comprises at least one electrical energy storage cell (3) which can be connected into an operating current circuit by means of a semiconductor switch (2), characterized in that the energy storage device (10) has an electrically isolated, inductive coupling device (5) for charging the energy storage cells (3).

Abstract: The invention relates to an energy storage device for generating an n-phase supply voltage, wherein n>1, comprising n energy supply branches connected in parallel, which are each coupled to a respective output connection of the energy storage device, wherein each of the energy supply branches has a plurality of energy storage modules connected in series. The energy supply branches each have a respective energy storage cell module, which has at least one energy storage cell, and a respective coupling device having first coupling elements, which are designed to selectively connect the energy storage cell module into the respective energy supply branch or bypass the energy storage cell module.

Abstract: A capacitor (1) wherein the first voltage layer (11) and the second voltage layer (21) form an overlap region (4) in which the first voltage layer (11) and the second voltage layer (21) are arranged parallel to one another, separated by a gap (5), on a base side (6) of the capacitor (1), directly above one another, and wherein the at least one first pole terminal (12) extends in lateral continuation of the first voltage layer (11) and, in parallel with this, the at least one second pole terminal (22) extends in lateral continuation of the second voltage layer (21) over and beyond the overlap region (4), and in this way form at least one contact lug pair (7) protruding from the base side (6) of the capacitor (1).

Abstract: The invention relates to a method for charging energy storage cells of an energy storage device with a plurality of energy storage modules which are connected in series in an energy supply line, each energy storage module comprising an energy storage cell module which has at least one energy storage cell and comprising a coupling device with coupling elements. The coupling elements are designed to selectively connect the energy storage cell module in the energy supply line or to bridge the energy storage cell module.

Abstract: The invention relates to an energy storage device for generating an n-phase supply voltage for an electrical machine, where n?1, or for an inverter, with n energy supply branches connected in parallel, each of which can be connected to one of n phase lines, each of the energy supply branches comprising a plurality of series-connected energy storage modules, each comprising: an energy storage cell module and a coupling device configured to selectively connect the energy storage cell module into the respective energy supply branch or to bypass said module, the energy storage cell modules of respective first energy storage modules of an energy supply branch each comprising at least one first energy storage cell, the energy storage cell modules of respective second energy storage modules of an energy supply branch each comprising at least one second energy storage cell, and the first energy storage cells having a lower internal resistance than the second energy storage cells below a predetermined temperature thre

Abstract: A system includes an n-phase separately excited electrical machine, wherein n?1, and a controllable first energy store that has n parallel energy supply branches. Every energy supply branch includes a first connection that is connected to a respective phase connection of the electrical machine, and a second connection that is connected to a common reference bus. The reference bus is connected to a neutral point of the electrical machine via an exciter winding of the electrical machine.

Abstract: The invention relates to a controllable energy store (2) with n parallel energy supply branches (3-1, 3-2, 3-3), wherein n?1, each said branch having a first energy supply sub-branch (3-11; 3-21; 3-31) and a second energy supply sub-branch (3-12; 3-22; 3-32) that is connected in parallel to said first energy supply sub-branch. Each energy supply sub-branch (3-11; 3-12; 3-21; 3-22; 3-31; 3-32) has at least one energy storing module (4), each of which comprises at least one electric energy storing cell (5) with a corresponding controllable coupling unit (6). The coupling units (6) disconnect the energy supply sub-branch (3-11; 3-12; 3-21; 3-22; 3-31; 3-32) or bridge the respective corresponding energy storing cells (5) or connect the respective corresponding energy storing cells (5) into the respective energy supply sub-branch (3-11; 3-12; 3-21; 3-22; 3-31; 3-32) dependent on control signals.

Abstract: A system for charging at least one energy reservoir cell in a controllable energy reservoir serving to control/supply electrical energy to an n-phase electrical machine (n?2). The controllable energy reservoir has n parallel energy supply branches each having at least two series connected energy reservoir modules, each encompassing at least one electrical energy reservoir cell having an associated controllable coupling unit, are connected to a reference bus, and are connected to a respective phase of the machine. As a function of control signals, the coupling units interrupt the respective energy supply branch or bypass the associated reservoir cells or switch the associated reservoir cells into the respective energy supply branch. To charge at least one cell, at least two phases of the machine are connectable via at least one respective free-wheeling diode to a negative pole of a charging device. The reference bus is connectable to the negative pole of the device.

Abstract: The invention relates to a method for controlling an energy storage device that comprises n output connections, wherein n?2, for producing a supply voltage at each of the output connections, and n energy supply branches, which are each coupled to one of the output connections, wherein each of the energy supply branches comprises a plurality of series-connected energy storage modules that each comprise an energy storage cell module comprising at least one energy storage cell, and a coupling device having coupling elements in a full bridge circuit that is designed to connect or bridge the energy storage cell module selectively in the respective energy supply branch.

Abstract: The invention relates to an energy storage device (1) for generating an n-phase supply voltage for an electric machine (2), wherein n?1, with n energy supply branches which are connected in parallel and which can each be connected to one of n phase conductors (2a, 2b, 2c), wherein each of the energy supply branches has a large number of energy storage modules (1a, 1b) which are connected in series and which each comprise: an energy storage cell module (5, 7) which has at least one energy storage cell (5a, 7a) and a coupling device (3), which is designed to connect the energy storage cell module (5, 7) selectively into the respective energy supply branch or to bridge said energy storage cell module, wherein in each case at least one of the energy storage modules (1b) also has in each case one heating element (8) for the at least one energy storage cell (7a); and a heating device (9), which is connected to the heating elements (8) and which is designed to actuate the heating elements (8) for heating the energy

Abstract: The invention relates to a method for charging the energy storage cells of an energy storage device, which comprises: n first output connections, wherein n>1, for issuing a supply voltage at each of the output connections, a second output connection, wherein a charging device can be connected between the first output connections and the second output connection, and n parallel-connected energy supply branches, which are each coupled between a first output connection and the second output connection, wherein each of the energy supply branches comprises a plurality of series-connected energy storage modules, which each comprise an energy storage cell module comprising at least one energy storage cell, and a coupling device having coupling elements that are designed to selectively connect or bridge the energy storage cell module in the respective energy supply branch.

Abstract: The invention relates to a system for charging at least one energy storing cell (5) in a controllable energy store (2) that is used to control and supply electric energy to an n-phase electric machine (1), wherein n ?1. The controllable energy store (2) has n parallel energy supply branches (3-1, 3-2, 3-3), each of which has at least two serially connected energy storing modules (4), each said energy storing module comprising at least one electric energy storing cell (5) with a corresponding controllable coupling unit (6). The energy supply branches (3-1, 3-2, 3-3) can be connected to a reference bus (T-), and each energy supply branch can be connected to a phase (U, V, W) of the electric machine (1). The coupling units (6) bridge the respective corresponding energy storing cells (5) or connect same into the respective energy supply branch (3-1, 3-2; 3-3) dependent on control signals. The aim of the invention is to allow at least one energy storing cell (5) to be charged.

Abstract: An energy supply network has an n-phase electrical machine where n?1 and a controllable first energy reservoir which serves to control and supply electrical energy to the electrical machine. The first energy reservoir has n parallel energy supply branches that each have at least two energy reservoir modules, connected in series, that each encompass at least one electrical energy reservoir cell having an associated controllable coupling unit and are connected on the one hand to a reference bus, and on the other hand to a respective phase of the electrical machine. As a function of control signals, the coupling units either bypass the respectively associated energy reservoir cells or switch the respectively associated energy reservoir cells into the energy supply branch.

Abstract: A battery system comprising at least two battery modules, wherein each battery module consists of at least one battery and a controllable first switching apparatus, which is designed to connect the respective battery module into a current path of the battery system or to electrically bridge the respective battery module, comprising at least one controllable second switching apparatus, which is designed to electrically connect the at least two battery modules in parallel or in series and comprising a control device, which is designed to control the controllable first switching apparatuses and the controllable second switching apparatus as a function of the requested electrical power. In addition, the present invention discloses a method of operating a battery system.