US 12,476,561 B2
Anti-surge electrical converter
Philippe Naneix, Moissy-Cramayel (FR)
Assigned to SAFRAN ELECTRICAL & POWER, Blagnac (FR)
Appl. No. 18/577,635
Filed by SAFRAN ELECTRICAL & POWER, Blagnac (FR)
PCT Filed Jul. 20, 2022, PCT No. PCT/IB2022/056702
§ 371(c)(1), (2) Date Jan. 8, 2024,
PCT Pub. No. WO2023/286041, PCT Pub. Date Jan. 19, 2023.
Claims priority of application No. 2107603 (FR), filed on Jul. 13, 2021.
Prior Publication US 2024/0322720 A1, Sep. 26, 2024
Int. Cl. H02P 9/02 (2006.01); H02M 3/44 (2006.01); H02M 7/64 (2006.01)
CPC H02P 9/02 (2013.01) [H02M 3/44 (2013.01); H02M 7/64 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An electrical converter, comprising:
an inverter configured to provide at least one input AC voltage from an input DC voltage;
an AC-to-AC voltage converter configured to provide an output AC voltage from the at least one input AC voltage, such that the output AC voltage has an amplitude that depends on a frequency of the at least one input AC voltage, the AC-to-AC voltage converter comprising:
an electric motor configured to provide mechanical rotational energy from the at least one input AC voltage, and
an electric generator designed to provide an output AC voltage from the mechanical rotational energy; and
a rectifier configured to provide an output DC voltage from the output AC voltage;
wherein the inverter comprises at least two switching arms each designed to receive the input DC voltage and each having two switches connected to each other at a midpoint, the at least one input AC voltage being respectively provided between the one or more pair of midpoints;
wherein the inverter further comprises a control device configured to control the switching arms according to an open-loop operation so that the switching arms are controlled independently of the output DC voltage, that is to say without taking into account the output DC voltage.