US 12,255,553 B2
Measuring assembly for an inverter and inverter assembly
Erwin Reisinger, Feldkirchen bei Graz (AT); and Martin Schmidt, Langen (DE)
Assigned to AVL List GmbH, Graz (AT)
Appl. No. 18/010,471
Filed by AVL List GmbH, Graz (AT)
PCT Filed Jun. 16, 2021, PCT No. PCT/AT2021/060204
§ 371(c)(1), (2) Date Dec. 15, 2022,
PCT Pub. No. WO2021/253064, PCT Pub. Date Dec. 23, 2021.
Claims priority of application No. A 50516/2020 (AT), filed on Jun. 16, 2020.
Prior Publication US 2023/0163699 A1, May 25, 2023
Int. Cl. H02M 7/539 (2006.01); H02M 1/00 (2006.01); H02M 7/217 (2006.01); H02M 7/5395 (2006.01); H02P 27/06 (2006.01)
CPC H02M 7/5395 (2013.01) [H02M 1/0009 (2021.05); H02M 7/217 (2013.01); H02P 27/06 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A measuring arrangement for determining an electrical power of a switched electrical converter unit, in which, in a modulation process, at least two electronic half bridges are switched with temporally offset actuation signals by a control unit, comprising a measuring unit that is connected to current sensors,
wherein the current sensors are arranged in output or input lines of the half bridges of the converter unit in order to measure bridge currents;
wherein the measuring unit is connected to the control unit for temporal synchronisation;
wherein the measuring unit is designed to define measurement times of the current sensors which are temporally synchronised with the actuation signals of the half bridges;
wherein the measuring unit is designed to query the current sensors with a measuring frequency which corresponds approximately to a frequency of the actuation signals and to define in advance measurement times which lie substantially in a middle of a duty cycle ton of the actuation signals.