Arrangement having at least one series circuit (R1, R2, R3) that comprises at least two series-connected submodules, at least one of which is a capacitor module that comprises at least one switch and one capacitor, and at least one of which is a storage module that comprises at least one switch and one electrical store, wherein the arrangement has a controller (20, 40) for driving the switches of the storage and capacitor modules (SM, KM), and - the store of the storage module has an energy storage capacity greater, in particular an energy storage capacity at least 100 times greater, than the capacitor of the capacitor module, - wherein - the controller (20, 40) is designed such that it drives the storage modules of the series circuits (R1, R2, R3) or at least one of the series circuits (R1, R2, R3) such that the sum voltage that results from adding together the partial voltages dropped across the storage modules of the series circuit (R1, R2, R3) follows a desired profile calculated by the controller (20, 40), - characterized in that - the controller (20, 40) is designed such that, - in order to calculate the desired profile, it performs an iterative method in which, in each iteration step, a respective first preliminary voltage profile is calculated in accordance with U 1 t = P Iz t ⋅ K wherein U1(t) denotes the first preliminary voltage profile, P denotes the active power that the series circuit is intended to consume or output, Iz(t) denotes the current flowing through the series circuit and K denotes a correction factor, - in each iteration step, the respective first preliminary voltage profile is capped to a predefined maximum value, forming a second preliminary voltage profile, - in each iteration step, the respective second preliminary voltage profile is optionally raised by a difference value, forming a third preliminary voltage profile, - in the course of the iterative method, an average power value is determined by integrating a product, formed from the second or third preliminary voltage profile and the current through the series circuit, over time, specifically preferably through integration over an integer multiple of a half period length, - the average power value is applied as a stoppage criterion for the iterative method, wherein the iterative method is stopped and the respective current second or third preliminary voltage profile is applied as calculated voltage profile for driving the storage modules, if the difference between the respective current average power value and the average power value of the previous iteration step is less than a predefined stop threshold, - the average power value is used to adjust the correction factor that was applied so as to form the first preliminary voltage profile, and - the respective next first preliminary voltage profile is calculated in the next iteration step taking into account the adjusted correction factor. - the store of the storage module has an energy storage capacity greater, in particular an energy storage capacity at least 100 times greater, than the capacitor of the capacitor module, - wherein - the controller (20, 40) is designed such that it drives the storage modules of the series circuits (R1, R2, R3) or at least one of the series circuits (R1, R2, R3) such that the sum voltage that results from adding together the partial voltages dropped across the storage modules of the series circuit (R1, R2, R3) follows a desired profile calculated by the controller (20, 40), - characterized in that - the controller (20, 40) is designed such that, - in order to calculate the desired profile, it performs an iterative method in which, in each iteration step, a respective first preliminary voltage profile is calculated in accordance with U 1 t = P Iz t ⋅ K wherein U1(t) denotes the first preliminary voltage profile, P denotes the active power that the series circuit is intended to consume or output, Iz(t) denotes the current flowing through the series circuit and K denotes a correction factor, - in each iteration step, the respective first preliminary voltage profile is capped to a predefined maximum value, forming a second preliminary voltage profile, - in each iteration step, the respective second preliminary voltage profile is optionally raised by a difference value, forming a third preliminary voltage profile, - in the course of the iterative method, an average power value is determined by integrating a product, formed from the second or third preliminary voltage profile and the current through the series circuit, over time, specifically preferably through integration over an integer multiple of a half period length, - the average power value is applied as a stoppage criterion for the iterative method, wherein the iterative method is stopped and the respective current second or third preliminary voltage profile is applied as calculated voltage profile for driving the storage modules, if the difference between the respective current average power value and the average power value of the previous iteration step is less than a predefined stop threshold, - the average power value is used to adjust the correction factor that was applied so as to form the first preliminary voltage profile, and - the respective next first preliminary voltage profile is calculated in the next iteration step taking into account the adjusted correction factor.