公开(公告)号：US20210135455A1

公开(公告)日：2021-05-06

申请号：US16492313

申请日：2018-02-28

Applicant: ABB Schweiz AG

Inventor： Antonis Marinopoulos ,  Jan Svensson ,  Silverio Alvarez ,  Stephan Schnez

IPC: H02J3/38

Abstract: A photovoltaic power plant system for power generation, comprising one or more photovoltaic clusters and one or more modular multilevel converters. Each photovoltaic cluster includes a number of photovoltaic strings connected to one or more MPPT DC/DC, converters connected to a common LVDC, bus. Each photovoltaic cluster includes a DC/DC converter including an input connected to the LVDC bus, and an output connected to a MVDC collection grid. Each of the one or more modular multilevel converters includes an input connected to the one or more photovoltaic clusters via the MVDC collection grid and an output connected to a transmission grid.

公开(公告)号：US11228178B2

公开(公告)日：2022-01-18

申请号：US16492313

申请日：2018-02-28

Applicant: ABB Schweiz AG

Inventor： Antonis Marinopoulos ,  Jan Svensson ,  Silverio Alvarez ,  Stephan Schnez

IPC: H02J3/38 ,  H02M7/44 ,  H02S40/32

Abstract: A photovoltaic power plant system for power generation, comprising one or more photovoltaic clusters and one or more modular multilevel converters. Each photovoltaic cluster includes a number of photovoltaic strings connected to one or more MPPT DC/DC, converters connected to a common LVDC, bus. Each photovoltaic cluster includes a DC/DC converter including an input connected to the LVDC bus, and an output connected to a MVDC collection grid. Each of the one or more modular multilevel converters includes an input connected to the one or more photovoltaic clusters via the MVDC collection grid and an output connected to a transmission grid.

公开(公告)号：US10348093B2

公开(公告)日：2019-07-09

申请号：US15378679

申请日：2016-12-14

Applicant: ABB Schweiz AG

Inventor： Harish Suryanarayana ,  Hongrae Kim ,  Sara Ahmed ,  Peter Steimer ,  Philippe Maibach ,  Hans Krattiger ,  Silverio Alvarez ,  Paolo Casini ,  Jiuping Pan

IPC: H02J1/10 ,  H02J3/38 ,  H02H7/26

Abstract: Unique systems, methods, techniques and apparatuses of a power collection system are disclosed herein. One exemplary embodiment is an MVDC collection system coupled to a utility grid including a collection bus, a plurality of branches coupled to the collection bus, and a branch controller. Each of the plurality of branches include a semiconductor switch coupled to the collection bus, and a DC/DC converter coupled to the semiconductor switch and an LVDC power source. The branch controller configured to determine a fault condition is occurring within the MVDC collection system, determine the location of the fault condition, and isolate the fault condition using at least one of the semiconductor switches and the DC/DC converters.

公开(公告)号：US20180166881A1

公开(公告)日：2018-06-14

申请号：US15378679

申请日：2016-12-14

Applicant: ABB Schweiz AG

Inventor： Harish Suryanarayana ,  Hongrae Kim ,  Sara Ahmed ,  Peter Steimer ,  Philippe Maibach ,  Hans Krattiger ,  Silverio Alvarez ,  Paolo Casini ,  Jiuping Pan

IPC: H02J3/38 ,  H02M3/24 ,  H02M7/44

CPC classification number: H02J3/383 ,  H02H7/268 ,  Y02E10/563

Abstract: Unique systems, methods, techniques and apparatuses of a power collection system are disclosed herein. One exemplary embodiment is an MVDC collection system coupled to a utility grid including a collection bus, a plurality of branches coupled to the collection bus, and a branch controller. Each of the plurality of branches include a semiconductor switch coupled to the collection bus, and a DC/DC converter coupled to the semiconductor switch and an LVDC power source. The branch controller configured to determine a fault condition is occurring within the MVDC collection system, determine the location of the fault condition, and isolate the fault condition using at least one of the semiconductor switches and the DC/DC converters.