Abstract: A method for a safety concept for an AC battery, in which the AC battery includes a central controller, a plurality of battery modules which respectively have a power board with a plurality of switching states, a plurality of contactors, a plurality of current sensors, a fault loop and a high-speed bus and is connected to a traction machine. The central controller has a hardware-programmable processor unit with at least one microprocessor core on which a control program is configured to control the battery modules, the plurality of contactors and the fault loop. A state machine is implemented by the control program. The battery modules are connected, starting from the central controller, via the high-speed bus and the fault loop. If an abort fault occurs, the AC battery is changed to a safe operating state. The safe state is achieved at least by emergency disconnection of the central controller.

Abstract: A method for configuring a battery for operation of at least two N-phase electric machines, in which a battery includes a plurality of energy modules, and the energy modules each have at least one energy cell and at least two power switches. A respective N-phase electric machine is assigned a respective group of the plurality of energy modules, and the assignment is carried out in accordance with an estimation of a respective energy consumption of the respective N-phase electric machines on the basis of a respective load of the respective N-phase electric machines which load is to be assumed.

Abstract: An energy store (14a) has at least three energy storage sections (u, v, w) and at least two switching elements. Each energy storage sections (u, v, w) has multiple energy storage modules and each energy storage module has at least one energy storage element that receives and stores energy from an energy source (12). The energy store (14a) is connected to a first coil (50) so that a voltage induced in the first coil (50) is used to charge the energy storage elements. The energy store (14a) is matched to properties of the voltage provided by the first coil (50) by switching the switching elements. As a result, the energy storage modules of an energy storage section (u, v, w) are connected in parallel and/or in series with one another and/or at least one energy storage module of at least one energy storage section (u, v, w) is bypassed.

Abstract: A method for a safety concept for an AC battery, in which the AC battery includes a central controller, a plurality of battery modules which respectively have a power board with a plurality of switching states, a plurality of contactors, a plurality of current sensors, a fault loop and a high-speed bus and is connected to a traction machine. The central controller has a hardware-programmable processor unit with at least one microprocessor core on which a control program is configured to control the battery modules, the plurality of contactors and the fault loop. A state machine is implemented by the control program. The battery modules are connected, starting from the central controller, via the high-speed bus and the fault loop. If an abort fault occurs, the AC battery is changed to a safe operating state. The safe state is achieved at least by emergency disconnection of the central controller.

Abstract: The present invention relates to a method for controlling a distortion spectrum that arises for a switch-based inverter (306), which modulates at least one output variable, by virtue of space vector modulation, characterized in that different switch positions (312) causing a modulation of the at least one output variable which approximates to a predefined reference signal (310), are ascertained for each chronologically sequential switching process, a respective distortion spectrum for differences between the reference signal (310) and the at least one output variable that would arise from a respective realization of these different switch positions (312) is calculated, and the switch position (314) for which the associated distortion spectrum is most suitable according to predetermined properties is selected and implemented in the inverter (306). Further provided are a corresponding system and a corresponding modulator.

Abstract: An energy store (14a) has at least three energy storage sections (u, v, w) and at least two switching elements. Each energy storage sections (u, v, w) has multiple energy storage modules and each energy storage module has at least one energy storage element that receives and stores energy from an energy source (12). The energy store (14a) is connected to a first coil (50) so that a voltage induced in the first coil (50) is used to charge the energy storage elements. The energy store (14a) is matched to properties of the voltage provided by the first coil (50) by switching the switching elements. As a result, the energy storage modules of an energy storage section (u, v, w) are connected in parallel and/or in series with one another and/or at least one energy storage module of at least one energy storage section (u, v, w) is bypassed.

Abstract: The present invention relates to a method for controlling a distortion spectrum that arises for a switch-based inverter (306), which modulates at least one output variable, by virtue of space vector modulation, characterized in that different switch positions (312) causing a modulation of the at least one output variable which approximates to a predefined reference signal (310), are ascertained for each chronologically sequential switching process, a respective distortion spectrum for differences between the reference signal (310) and the at least one output variable that would arise from a respective realization of these different switch positions (312) is calculated, and the switch position (314) for which the associated distortion spectrum is most suitable according to predetermined properties is selected and implemented in the inverter (306). Further provided are a corresponding system and a corresponding modulator.

Abstract: A method for configuring a battery for operation of at least two N-phase electric machines, in which a battery includes a plurality of energy modules, and the energy modules each have at least one energy cell and at least two power switches. A respective N-phase electric machine is assigned a respective group of the plurality of energy modules, and the assignment is carried out in accordance with an estimation of a respective energy consumption of the respective N-phase electric machines on the basis of a respective load of the respective N-phase electric machines which load is to be assumed.