US 12,074,550 B2
Control device, inverter, assembly having an inverter and an electrical machine, method for operating an inverter, and computer program
Panagiotis Mantzanas, Erlangen (DE); Daniel Kübrich, Schlüsselfeld (DE); Thomas Dürbaum, Baiersdorf (DE); Alexander Bucher, Nuremberg (DE); Alexander Pawellek, Erlangen (DE); Christian Hasenohr, Erlangen (DE); and Harald Hofmann, Nuremberg (DE)
Assigned to Valeo Siemens eAutomotive Germany GmbH, Erlangen (DE)
Appl. No. 17/780,836
Filed by Valeo Siemens eAutomotive Germany GmbH, Erlangen (DE)
PCT Filed Nov. 24, 2020, PCT No. PCT/EP2020/083122
§ 371(c)(1), (2) Date May 27, 2022,
PCT Pub. No. WO2021/105079, PCT Pub. Date Jun. 3, 2021.
Claims priority of application No. 10 2019 132 509.9 (DE), filed on Nov. 29, 2019.
Prior Publication US 2023/0019218 A1, Jan. 19, 2023
Int. Cl. H02P 27/08 (2006.01); H02M 1/08 (2006.01); H02M 7/5387 (2007.01)
CPC H02P 27/08 (2013.01) [H02M 1/08 (2013.01); H02M 7/53871 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A control device for an inverter that feeds an electric machine, wherein the control device is configured to:
provide pulse-width modulated switching signals for driving switching elements of the inverter, and
determine a modulation type by which the pulse-width modulated switching signals are generated depending on operating point information that describes an operating point defined by at least one operating parameter, and to use a first modulation type in at least one first operating region and a second modulation type in another operating region,
wherein the operating regions are determined in such a way that a peak-to-peak value of a DC link voltage of the inverter does not exceed a predefined value.