公开(公告)号：US11722003B2

公开(公告)日：2023-08-08

申请号：US17137646

申请日：2020-12-30

Applicant: SMA Solar Technology AG

Inventor： Claus Allert ,  Aleksandra-Sasa Bukvic-Schaefer ,  Harald Christian Benz ,  Patrick Blair Reynolds

IPC: H02M7/44 ,  H02J9/06 ,  H02M3/04

CPC classification number: H02J9/062 ,  H02M3/04 ,  H02M7/44

Abstract: A power converter with an inverter that is configured to transform electrical power between a DC-side of the power converter and an AC-side of the power converter, includes a first port operatively connected to an AC-grid, a second port operatively connected to an AC-load, a third port connected to an external power source, and a fourth port operatively connected to a rechargeable DC-power storage. The power converter includes a DC/DC-converter between the third port and the inverter, to transfer electrical power provided by the external power source from the third port to the inverter. The inverter is configured to be grid forming and provide electrical power to the second port upon a power supply outage at the first port, the power converter includes a control unit to monitor the third port and detect parameters of the electrical power provided via the third port.

公开(公告)号：US20220368154A1

公开(公告)日：2022-11-17

申请号：US17322095

申请日：2021-05-17

Applicant: SMA Solar Technology AG

Inventor： Claus Allert ,  Aleksandra-Sasa Bukvic-Schaefer ,  Harald Christian Benz ,  Patrick Blair Reynolds

IPC: H02J9/06 ,  H02J3/38

Abstract: Disclosed is an electrical unit with a first port configured to be operatively connected to an AC-grid, a second port configured to be operatively connected to an AC-load, and a third port to be operatively connected to an AC-side of a first inverter. The electrical unit includes a first choke arranged between the third port and the second port. The electrical unit is configured to transfer electrical power provided by the first inverter from the third port via the first choke to the second port. The electrical unit is configured to provide grid-forming electrical power to the second port in case of disconnection from the AC-grid at the first port. Further disclosed is a backup power system and a method for operating a backup power system.

公开(公告)号：US11515724B1

公开(公告)日：2022-11-29

申请号：US17322095

申请日：2021-05-17

Applicant: SMA Solar Technology AG

Inventor： Claus Allert ,  Aleksandra-Sasa Bukvic-Schaefer ,  Harald Christian Benz ,  Patrick Blair Reynolds

IPC: H02J7/00 ,  H02J9/00 ,  H02J9/06 ,  H02J3/38

Abstract: Disclosed is an electrical unit with a first port configured to be operatively connected to an AC-grid, a second port configured to be operatively connected to an AC-load, and a third port to be operatively connected to an AC-side of a first inverter. The electrical unit includes a first choke arranged between the third port and the second port. The electrical unit is configured to transfer electrical power provided by the first inverter from the third port via the first choke to the second port. The electrical unit is configured to provide grid-forming electrical power to the second port in case of disconnection from the AC-grid at the first port. Further disclosed is a backup power system and a method for operating a backup power system.

公开(公告)号：US20220209572A1

公开(公告)日：2022-06-30

申请号：US17137646

申请日：2020-12-30

Applicant: SMA Solar Technology AG

Inventor： Claus Allert ,  Aleksandra-Sasa Bukvic-Schaefer ,  Harald Christian Benz ,  Patrick Blair Reynolds

IPC: H02J9/06 ,  H02M3/04 ,  H02M7/44

Abstract: A power converter with an inverter that is configured to transform electrical power between a DC-side of the power converter and an AC-side of the power converter, includes a first port and a second port arranged on the AC-side and a third port and a fourth port arranged on the DC-side of the power converter. The first port is configured to be operatively connected to an AC-grid, the second port is configured to be operatively connected to an AC-load, the third port is configured to be operatively connected to an external power source, and the fourth port is configured to be operatively connected to a rechargeable DC-power storage. The power converter includes a DC/DC-converter arranged between the third port and the inverter, which is configured to transfer electrical power provided by the external power source from the third port to the inverter. The inverter is configured to be grid forming and to provide electrical power to the second port in case of a power supply outage at the first port, the power converter further includes a control unit configured to monitor the third port and to detect parameters of the electrical power provided via the third port.