US 12,143,028 B2
Electrical assembly
Chandra Mohan Sonnathi, Stafford (GB); Rajaseker Reddy Ginnareddy, Stafford (GB); and Carl Barker, Stafford (GB)
Assigned to GE INFRASTRUCTURE TECHNOLOGY LLC, Greenville, SC (US)
Appl. No. 17/794,053
Filed by General Electric Technology GmbH, Baden (CH)
PCT Filed Jan. 26, 2021, PCT No. PCT/EP2021/051681
§ 371(c)(1), (2) Date Jul. 20, 2022,
PCT Pub. No. WO2021/156096, PCT Pub. Date Aug. 12, 2021.
Claims priority of application No. 20275027 (EP), filed on Feb. 7, 2020.
Prior Publication US 2023/0054979 A1, Feb. 23, 2023
Int. Cl. H02M 7/217 (2006.01); H02M 1/08 (2006.01); H02M 1/32 (2007.01); H02M 7/757 (2006.01)
CPC H02M 7/217 (2013.01) [H02M 1/08 (2013.01); H02M 1/32 (2013.01); H02M 7/7575 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An electrical assembly comprising:
a converter including a DC side and an AC side, the DC side configured for connection to a DC network, the AC side configured for connection to an AC network, the converter including at least one switching element;
a circuit interruption device operably connected to the AC side of the converter;
a DC voltage modification device operably connected to the DC side of the converter, the DC voltage modification device including a DC chopper; and
a controller configured to selectively control the or each switching element, the circuit interruption device and the DC voltage modification device,
wherein the controller is configured to be responsive to a converter internal fault by carrying out a fault operating mode in which the controller controls: the or each switching element to block the converter throughout the entirety of the fault operating mode; the circuit interruption device to electrically isolate the converter from the AC network; and the DC voltage modification device to reduce or minimize a DC voltage presented by the DC network to the DC side of the converter.