公开(公告)号：AU2009349193B2

公开(公告)日：2015-08-27

申请号：AU2009349193

申请日：2009-07-02

Applicant: ABB RESEARCH LTD

Inventor： THORBURN STEFAN ,  LILJESTRAND LARS ,  PETERSSON AKE

IPC: H02J3/18

Abstract: An arrangement to control an electrical property of a medium or high voltage AC system comprising a number n of phases (11 -13) with n being at least two comprises a number n of phases (14-16), each phase comprising a series connection of at least two electrical elements (17) with an intermediate connection point (18) between each pair of the at least two electrical elements, where each of the n phases (14-16) of the arrangement is connected on one side to an original common neutral point (19) and on the other side to one of the n phases (11 -13) of the AC system. The arrangement further comprises a number [n-1] of first switchable interconnections (20, 21), where the first switchable interconnections are each arranged between two intermediate connection points (18) of two of the n phases (14-16) of the arrangement, and at least one control unit (30) arranged to control the first switchable interconnections (20, 21) so that the first switchable interconnections (20, 21) are closed, each between two intermediate connection points (18) of two of the n phases (14-16) of the arrangement, thereby interconnecting all n phases of the arrangement and thereby creating a new common neutral point (26) consisting of the closed first switchable interconnections (20, 21).

公开(公告)号：MX2011013514A

公开(公告)日：2012-02-22

申请号：MX2011013514

申请日：2009-07-02

Applicant: ABB RESEARCH LTD

Inventor： THORBURN STEFAN ,  LILJESTRAND LARS ,  PETERSSON AKE

IPC: H02J3/18

Abstract: Un arreglo para controlar una propiedad eléctrica de un sistema AC de voltaje medio o alto voltaje que comprende un número n de fases (11-13) con n siendo al menos dos comprende un número n de fases (14-16), cada fase comprende una conexión en serie de al menos dos elementos eléctricos (17) con un punto de conexión intermedio (18) entre cada par de al menos dos elementos eléctricos, donde cada una de las n fases (14-16) del arreglo está conectada en un lado a un punto neutral común original (19) y en el otro lado a una de las n fases (11-13) del sistema AC; el arreglo además comprende un número [n-1] de primeras interconexiones conmutables (20, 21), donde las primeras interconexiones conmutables están acomodadas, cada una, entre dos puntos de conexión intermedios (18) de dos de las n fases (14-16) del arreglo, y al menos una unidad de control (30) acomodada para controlar las primeras interconexiones conmutables (20, 21) de manera que las primeras interconexiones conmutables (20, 21) están cerradas, cada una entre dos puntos de conexión intermedios (18) de dos de las n fases (14-16) del arreglo, interconectando así todas las n fases del arreglo y creando así un nuevo punto neutral común (26) que consiste de las primeras interconexiones conmutables cerradas (20, 21).

公开(公告)号：AT544223T

公开(公告)日：2012-02-15

申请号：AT08172418

申请日：2008-12-19

Applicant: ABB RESEARCH LTD

Inventor： STRIDH BENGT ,  AENGQUIST LENNART ,  DIJKHUIZEN FRANS ,  DEMETRIADES GEORGIOS ,  PAPASTERGIOU KONSTANTINOS ,  BAKAS PANAGIOTIS ,  THORBURN STEFAN ,  NORRGA STAFFAN

IPC: H02J7/35

Abstract: The invention relates to a photovoltaic system for generating an output voltage which is essentially uninfluenced by varying irradiation, the photovoltaic system comprising a photovoltaic source (1) having an input terminal (2) and an output terminal (3). The photovoltaic system is characterized in that the photovoltaic system comprises a voltage adding arrangement (4) comprising a first input terminal (5) and an output terminal (6), the voltage adding arrangement (4) is connected in series with the photovoltaic source (1), and in that a first route (7) comprising a voltage source (9) and a second route (8) constituting a voltage source bypass extend between said first input terminal (5) and said output terminal (6) of the voltage adding arrangement (4), said first and second routes being alternately activateable.

公开(公告)号：DE602008004221D1

公开(公告)日：2011-02-10

申请号：DE602008004221

申请日：2008-02-19

Applicant: ABB RESEARCH LTD

Inventor： SCHOLTZ ERNST ,  THORBURN STEFAN ,  HAJ-MAHARSI MOHAMED

IPC: H02P9/00 ,  H02H7/06 ,  H03H11/04

公开(公告)号：CA2721291A1

公开(公告)日：2009-10-22

申请号：CA2721291

申请日：2009-04-17

Applicant: ABB RESEARCH LTD

Inventor： THORBURN STEFAN

IPC: H02J3/18 ,  H02J3/20 ,  H02J3/32

Abstract: It is presented an apparatus comprising: a converter (118) having an AC side and a DC side, a switch (112) adapted to be connected to a transmission line (104) on a first side and the switch being adapted to be connected to a load (122) on a second side, the second side also being connected to the AC side of the converter, an energy storage device (120), connected to the DC side of the converter. In a first operating mode, the switch is closed, such that an energy storage current flows to or from the energy storage device to charge or discharge the energy storage device, respectively, using the converter' for any necessary conversion between AC and DC. In a second operating mode, the switch is open, preventing current from flowing from the transmission line to the converter, and the energy storage device supplies a direct current which is converted to an alternating current by the converter. Moreover, in the first operating mode, the apparatus is configured such that a power transfer on the transmission line corresponds to a surge impedance loading of the transmission line, by affecting the energy storage current. A corresponding method is also presented.

公开(公告)号：CA2672403A1

公开(公告)日：2008-07-03

申请号：CA2672403

申请日：2007-12-21

Applicant: ABB RESEARCH LTD

Inventor： BENGTSSON TORD ,  THORBURN STEFAN

IPC: G01R27/16

Abstract: Arrangement to determine at least one electrical feature of an electrical device (1). The arrangement comprising a signal injection unit (8) configur ed to inject a first test signal (t1) at a first main frequency (f1) into a first electric circuit (10), and to inject a second test signal (t2) at a se cond main frequency (f2) into the first electric circuit (10) or into a seco nd electric circuit (30), a signal conversion unit (7) configured to measure a first and a second electrical quantity in the first electrical circuit re sulting from the first test signal (t1), and to measure the first and second electrical quantity in the first (10) or second electric circuit (30) resul ting from the second test signal (t2),and a processing device (18) including at least two analogue input channels (16,17) configured to receive the meas ured electrical quantities and to determine the electrical feature based on the measured electrical quantities, a mixing unit (13) configured to add the measurements (U1,U2) of the first electrical quantity from the first and se cond testsignals and based thereon generate a first mixed signal, to add the measurements (I1,I2) of the second electrical quantity from the first and s econd test signals and based thereon generate a second mixed signal, to supp ly the first mixed signal to a firstinput channel of the processing device a nd to supply the second mixed signal to a second input channel of the proces sing device. The processing device is configured to decompose the mixed sign als to obtain the measurements of the first and second electrical quantities .

公开(公告)号：CA2765105C

公开(公告)日：2016-12-13

申请号：CA2765105

申请日：2009-07-02

Applicant: ABB RESEARCH LTD

Inventor： THORBURN STEFAN ,  LILJESTRAND LARS ,  PETERSSON AKE

IPC: H02J3/18

Abstract: An arrangement to control an electrical property of a medium or high voltage AC system comprising a number n of phases (11 -13) with n being at least two comprises a number n of phases (14-16), each phase comprising a series connection of at least two electrical elements (17) with an intermediate connection point (18) between each pair of the at least two electrical elements, where each of the n phases (14-16) of the arrangement is connected on one side to an original common neutral point (19) and on the other side to one of the n phases (11 -13) of the AC system. The arrangement further comprises a number [n-1] of first switchable interconnections (20, 21), where the first switchable interconnections are each arranged between two intermediate connection points (18) of two of the n phases (14-16) of the arrangement, and at least one control unit (30) arranged to control the first switchable interconnections (20, 21) so that the first switchable interconnections (20, 21) are closed, each between two intermediate connection points (18) of two of the n phases (14-16) of the arrangement, thereby interconnecting all n phases of the arrangement and thereby creating a new common neutral point (26) consisting of the closed first switchable interconnections (20, 21).

公开(公告)号：CA2839813A1

公开(公告)日：2012-12-27

申请号：CA2839813

申请日：2011-06-22

Applicant: ABB RESEARCH LTD

Inventor： LARSSON TOMAS ,  RIVAS RICHARD ,  THORBURN STEFAN ,  HOLMBERG MARGUERITE

IPC: H02J3/18 ,  H02J3/24

Abstract: The invention relates to a method (20) in an electric power system (1) comprising one or more power generation source (s) (3, 4, 5) and a dynamic power compensator (6) having a battery energy storage (10). The method (20) comprises the steps of: detecting (21) a frequency disturbance within the electricity power system (1) requiring an additional power generation source (3, 4, 5) to be connected to the electricity power system (1) in order to meet a power demand; and controlling (22) the power output from the battery energy storage (10) of the dynamic power compensator (6) during start-up of the additional power generation source (3, 4, 5), thereby limiting the frequency disturbance within the electric power system (1). The invention also relates to a controller, computer program, computer program products and electric power system.

公开(公告)号：CA2835458A1

公开(公告)日：2012-11-15

申请号：CA2835458

申请日：2011-12-28

Applicant: ABB RESEARCH LTD

Inventor： LARSSON TOMAS ,  THORBURN KARIN ,  THORBURN STEFAN

IPC: H02J3/18

Abstract: The invention relates to a method (50) in a controller (18) controlling a dynamic power compensator (10). The dynamic power compensator (10) is arranged to provide active and reactive power P, Q to an electric power system (17), the dynamic power compensator (10) comprising a battery energy storage (14). The method (50) comprises the steps of: monitoring (51) a state of charge of the battery energy storage (14); detecting (52) a voltage level in the electric power system (17) requiring increased delivery of the reactive power Q to the electric power system (17); and controlling (53) the battery energy storage (14) in dependence on the monitored state of charge and detected voltage level. The invention also relates to a controller, computer programs and computer program products.

公开(公告)号：ES2381227T3

公开(公告)日：2012-05-24

申请号：ES08172418

申请日：2008-12-19

Applicant: ABB RESEARCH LTD

Inventor： STRIDH BENGT ,  AENGQUIST LENNART ,  DIJKHUIZEN FRANS ,  DEMETRIADES GEORGIOS ,  PAPASTERGIOU KONSTANTINOS ,  BAKAS PANAGIOTIS ,  THORBURN STEFAN ,  NORRGA STAFFAN

IPC: H02J7/35

Abstract: Un sistema fotovoltaico para la generación de una tensión de salida que no esté esencialmente influenciada por la radiación variable, comprendiendo el sistema fotovoltaico una fuente fotovoltaica (1) que tiene un terminal negativo (2) y un terminal positivo (3), en el que el sistema fotovoltaico comprende una disposición de adición de tensión (4) que comprende un primer terminal negativo (5) y un terminal positivo (6), la disposición de adición de tensión (4) se conecta en serie con la fuente fotovoltaica (1) y en que un primer recorrido (7) comprende una fuente de tensión recargable (9, 9') y un segundo recorrido (8) constituye una derivación de la fuente de tensión que se extiende entre dicho primer terminal negativo (5) y dicho terminal positivo (6) de la disposición de adición de tensión (4), pudiendo activarse alternativamente dicho primer y segundo recorridos, caracterizado por que la disposición de adición de tensión (4) comprende además un interruptor del cargador (17) y un dispositivo cargador (14, 14') conectado a la fuente de tensión (9, 9') del primer recorrido (7), comprendiendo el dispositivo cargador (14, 14') un primer terminal de entrada (15) y un segundo terminal de entrada (16), estando conectado al menos uno de los cuales al interruptor del cargador (17) por medio del que el dispositivo de carga (14, 14') se puede conectar a la fuente fotovoltaica (1) o a una fuente de potencia externa (20) para cargar la fuente de tensión (9, 9').