公开(公告)号：US10270328B2

公开(公告)日：2019-04-23

申请号：US15548707

申请日：2015-02-04

Applicant: ABB SCHWEIZ AG

Inventor： Tomas Tengner ,  Amel Lachichi ,  Lennart Harnefors ,  Georgios Karmiris

IPC: H02M1/12 ,  H02M7/797 ,  H02J3/32 ,  H02M7/49 ,  H02J7/00 ,  H02M7/219 ,  H02M7/483 ,  H02J7/34

Abstract: A multilevel power converter includes at least one phase leg. The phase leg includes a plurality of cascaded chain link connected cells, each cell including a capacitor and two semiconductor switches in series, each with an anti-parallel connected diode. The plurality of cascaded chain link connected cells includes first and second cells which form a mirrored cell-pair such that the two semiconductor switches of each of the first and second cells are all connected in series with each other. The converter further includes an energy storage connected between the first and second cells.

公开(公告)号：US10193469B2

公开(公告)日：2019-01-29

申请号：US15579399

申请日：2015-06-29

Applicant: ABB SCHWEIZ AG

Inventor： Lennart Harnefors ,  Tomas Tengner

IPC: H02M7/483 ,  H02J3/32 ,  G05B11/01

Abstract: A multi-level power converter for one or more phases includes one or more converter arms including a plurality of serial connected switching cells. Each switching cell includes a plurality of switching devices, a primary energy storage, a secondary energy storage and a first inductor. The switching devices are arranged to selectively provide a connection to the primary energy storage, wherein each switching cell includes a bridge circuit including the switching devices and the primary energy storage, a battery circuit connected to the bridge circuit and including the secondary energy storage, and an arm circuit providing a connection between two adjacent switching cells. The first inductor of each switching cell is arranged in the arm circuit.

公开(公告)号：US09991713B2

公开(公告)日：2018-06-05

申请号：US15117094

申请日：2014-02-19

Applicant: ABB SCHWEIZ AG

Inventor： Tomas Tengner ,  Christopher Townsend ,  Hector Zelaya de la Parra ,  Alireza Nami

IPC: H02M7/483 ,  H02J3/18 ,  H02J3/28 ,  H02J3/36

CPC classification number: H02J3/1857 ,  H02J3/28 ,  H02J3/36 ,  H02M7/483 ,  H02M2007/4835 ,  Y02E40/26 ,  Y02E60/60

Abstract: An energy storage system (ESS) for an electrical system includes an energy storage, and a converter interface arranged for connecting the energy storage to the electrical system. The converter interface includes a modular multilevel converter in which each phase leg includes a plurality of series connected cells of which at least one is a half-bridge cell and at least one is a full-bridge cell.

公开(公告)号：US10601227B2

公开(公告)日：2020-03-24

申请号：US15759608

申请日：2015-09-14

Applicant: ABB SCHWEIZ AG

Inventor： Nicklas Johansson ,  Tomas Tengner ,  Mikko Huotari

IPC: G05B19/042 ,  H02J3/38 ,  H02J3/28 ,  H02J3/46 ,  H02J3/00

Abstract: A method for controlling plant active power output ramp rate of a power plant to a PCC with a power grid includes obtaining information about a current RES active power output of a Renewable Energy Source (RES) in the power plant. The method also includes forecasting future RES active power output, during a predefined future time period. The method also includes, based on the obtained current RES active power output information and on the forecasted RES active power output, determining whether an expected ramp rate of the RES active power output during the predefined time period exceeds a predefined maximum ramp rate limit of a plant active power output. The method also includes, based on the determining, selecting a first control method which is based on the forecasted future RES active power output if it is determined that the expected ramp rate exceeds the predefined maximum ramp rate limit, or selecting a second control method, different from the first control method, if it is determined that the expected ramp rate does not exceed the predefined maximum ramp rate limit. The method also includes using the selected first or second control method to generate an ESS control signal for controlling the ESS active power output PESS such that the plant active power output ramp rate is kept below the predefined maximum ramp rate limit during the predefined time period.

公开(公告)号：US10177557B2

公开(公告)日：2019-01-08

申请号：US15735445

申请日：2015-06-12

Applicant: ABB SCHWEIZ AG

Inventor： Robert Saers ,  Lars Liljestrand ,  Tomas Tengner ,  Jesper Magnusson

IPC: H02H3/00 ,  H02H3/20 ,  H02H3/087 ,  H02H3/44 ,  B60L3/04 ,  H02H7/18 ,  H02H3/02

Abstract: A passive electronic fuse for protecting a DC application in the event of a fault includes a first leg including a first winding of a mutual inductor and a switch device connected in series, a second leg including a second winding of the mutual inductor. The first leg and the second leg are connected in parallel and a self-inductance of the second winding is lower than a self-inductance of the first winding. The second leg further includes a capacitor connected in series with the second winding of the mutual inductor, and the switch device is a thyristor or a switch device with switching properties of a thyristor.