公开(公告)号：US09748772B2

公开(公告)日：2017-08-29

申请号：US14765079

申请日：2013-02-14

Applicant: ABB Schweiz AG

Inventor： Panagiotis Bakas ,  Sara Ahmed ,  Michal Lazarczyk ,  Radoslaw Nalepa ,  Antonis Marinopoulos ,  Dimitrios Doukas ,  Jyoti Sastry

IPC: H02M7/42 ,  H02J3/38

CPC classification number: H02J3/385 ,  H02M7/42 ,  Y02E10/58 ,  Y10T307/549

Abstract: A solar power plant including a power conversion system and a method of controlling the power conversion system. Implemented in a DC/AC inverter, the plant includes photovoltaic modules (PV modules) arranged in arrays connected to a respective DC/DC converters. A power collecting grid interfaces between the DC/DC converters and the DC/AC inverter. The method includes monitoring the performance of each PV array by adjusting the voltage level of each interface between a PV array and the corresponding DC/DC converter, and includes monitoring the output power of each DC/DC converter as a feedback for the regulating.

公开(公告)号：US20180191287A1

公开(公告)日：2018-07-05

申请号：US15908129

申请日：2018-02-28

Applicant: ABB Schweiz AG

Inventor： Sara Ahmed ,  Zhiguo Pan ,  Hongrae Kim

IPC: H02P27/04 ,  H02P27/08

CPC classification number: H02P27/047 ,  H02P23/0077 ,  H02P27/08

Abstract: A unique system may include a power absorber; an electrical machine coupled to the power absorber and operative to supply mechanical power to the power absorber; a drive coupled to the electrical machine and operative to supply electrical power to drive the electrical machine; and a controller communicatively coupled to the drive. The controller may be configured to execute program instructions to selectively vary a control voltage while maintaining a given torque output of the electrical machine, and to determine, based on varying the control voltage, a minimum current required for the electrical machine to maintain the given torque output.

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.

公开(公告)号：US09929567B2

公开(公告)日：2018-03-27

申请号：US14836189

申请日：2015-08-26

Applicant: ABB Schweiz AG

Inventor： Zhenyuan Wang ,  Sara Ahmed ,  Juhua Liu

IPC: H02J3/38 ,  H02M7/04 ,  H02J5/00 ,  H02J1/10 ,  H02J4/00

CPC classification number: H02J5/00 ,  H02J1/10 ,  H02J3/38 ,  H02J4/00

Abstract: Unique systems, methods, techniques, and apparatuses of datacenter power supply systems are disclosed. One exemplary embodiment is a datacenter power supply system comprising an AC power bus structured to selectably receive AC power from an AC power grid and a AC generator and structured to provide AC power to one or more AC datacenter loads and an AC/DC converter, a DC power generation system structured to provide DC power to a DC/DC converter, a DC power bus structured to selectably receive power from the AC/DC converter and the DC/DC converter and to provide DC power to a plurality of DC datacenter loads, and an electronic control system structured to selectably control the datacenter power supply system to operate in plurality of modes.