公开(公告)号：CA2727192C

公开(公告)日：2014-09-30

申请号：CA2727192

申请日：2008-06-09

Applicant: ABB TECHNOLOGY AG

Inventor： ASPLUND GUNNAR ,  JACOBSON BJOERN

IPC: H02M7/49 ,  H01B9/02

Abstract: A plant for transmitting electric power through HVDC comprises two converter stations (101, 102) interconnected by a bipolar direct voltage network (103) and each connected to an alternating voltage network (104, 105). Each converter station has a Voltage Source Converter with switching cells each including at least one energy storing capacitor. The Voltage Source Converters are configured to utilize a direct voltage having a higher magnitude for a first of the poles than for a second thereof with respect to ground.

公开(公告)号：AR072082A1

公开(公告)日：2010-08-04

申请号：ARP090102067

申请日：2009-06-09

Applicant: ABB TECHNOLOGY AG

Inventor： ASPLUND GUNNAR

IPC: H02H3/16

Abstract: Un aparato para proteger un equipo conectado a una l¡nea de corriente continua de alto voltaje comprende una v lvula de corriente electrica (12) que tiene por lo menos un dispositivo semiconductor (13) y un miembro rectificador (14) conectado en antiparalelo con la misma. Hay un disipador de sobrevoltajes (16) configurado para conectar dicha v lvula de corriente electrica, (12), a dicha l¡nea (2), y hay una unidad de control, (15), configurada para controlar la v lvula de corriente electrica, (12), para que la misma conduzca corriente electrica para drenar corriente electrica para drenar corriente electrica desde la l¡nea (2) a tierra (11).

公开(公告)号：CA2727370A1

公开(公告)日：2009-12-17

申请号：CA2727370

申请日：2008-06-12

Applicant: ABB TECHNOLOGY AG

Inventor： ASPLUND GUNNAR

IPC: H02J3/36 ,  H02M1/12 ,  H02M7/483

Abstract: A plant for transmitting electric power comprising a direct voltage network (100) and at least one three-phase alternating voltage network (101 ) connected thereto through a station (102). This station comprises a Voltage Source Converter (103). A unit (104) is configured to control the converter according to a PWM pattern for generating an alternating voltage having a third harmonic voltage part added to a fundamental voltage part. No transformer is arranged between phase outputs (106) of the converter and the alternating voltage network (101 ). An arrangement (107) is configured to block said third harmonic voltage part and prevent it from reaching the alternating voltage network.

公开(公告)号：CA2710147A1

公开(公告)日：2009-07-30

申请号：CA2710147

申请日：2008-01-21

Applicant: ABB TECHNOLOGY AG

Inventor： ASPLUND GUNNAR

IPC: H02M7/79 ,  H03K17/04

Abstract: A VSC converter comprises in each valve one first semiconductor device (24) of turn-off type with a voltage blocking capacity rating of a first, high level and connected in parallel therewith a series connection of a plurality of second semiconductor devices (25-29) of turn-off type with a voltage blocking capacity rating of a second, lower level. A control arrangement (23) of the converter is configured to switch a said valve into a conducting state starting from a forward biased blocking state of the valve by controlling the second semiconductor devices to be turned on and then the first semiconductor devices to be turned on with a delay, and at the end of the conducting state to turn off the first semiconductor device in advance of turning the second semiconductor devices off.

公开(公告)号：CA2709758A1

公开(公告)日：2009-07-16

申请号：CA2709758

申请日：2008-01-08

Applicant: ABB TECHNOLOGY AG

Inventor： ASPLUND GUNNAR

IPC: H02M7/483

Abstract: In a method for controlling a Voltage Source Converter having at least one phase leg comprising a series connection of switching elements (7), in which each said element has at least two semi- conductor devices (16, 17) of turn-off type, at least two free- wheeling diodes (18, 19) connected in parallel therewith and at least one energy storing capacitor (20), each said switching element is controlled according to a Pulse Width Modulation pattern so that each switching element is switched to change between applying a zero voltage and the voltage across its capacitor across its terminals each time a saw tooth voltage wave for that switching element crosses a reference alternating voltage belonging to that switching element.

公开(公告)号：CA2727370C

公开(公告)日：2016-08-02

申请号：CA2727370

申请日：2008-06-12

Applicant: ABB TECHNOLOGY AG

Inventor： ASPLUND GUNNAR

IPC: H02J3/36 ,  H02M1/12 ,  H02M7/483

Abstract: A plant for transmitting electric power comprising a direct voltage network (100) and at least one three-phase alternating voltage network (101) connected thereto through a station (102). This station comprises a Voltage Source Converter (103). A unit (104) is configured to control the converter according to a PWM pattern for generating an alternating voltage having a third harmonic voltage part added to a fundamental voltage part. No transformer is arranged between phase outputs (106) of the converter and the alternating voltage network (101). An arrangement (107) is configured to block said third harmonic voltage part and prevent it from reaching the alternating voltage network.

公开(公告)号：CA2709699C

公开(公告)日：2016-01-26

申请号：CA2709699

申请日：2008-12-23

Applicant: ABB TECHNOLOGY AG

Inventor： DOEFNAES LARS ,  HARNEFORS LENNART ,  PETTERSSON ANDERS J ,  SILJESTROEM ROLAND ,  ASPLUND GUNNAR

IPC: H02M7/483

Abstract: A device for converting a DC voltage into an AC voltage and vice versa comprises a control system to control the voltage conversion and at least one phase leg (1) with a first (Uvp1) voltage source connected in series between a first DC terminal (4) and a first AC terminal (6) and with a second (Uvn1) voltage source connected in series between the first AC terminal (6) and a second DC terminal (5). Each of the voltage sources comprises at least a first and a second submodule (15) in series-connection, where each submodule (15) comprises at least two power electronic switches (16) connected in parallel with at least one capacitor (17). The control system comprises a central control unit (19) and at least two subunits (20), where the central control unit (19) transmits to each subunit (20) a reference AC voltage (ua_ref) and a switching carrier signal (s_sw) and where each subunit (20) controls the switching of the power electronic switches (16) of one of the submodules (15) according to a PWM pattern so that each time the switching carrier signal (s_sw) crosses the reference AC voltage (ua_ref) either the voltage across the capacitor (17) or a zero voltage are applied to output terminals (26, 27) of the corresponding submodule (15).

公开(公告)号：RU2474035C2

公开(公告)日：2013-01-27

申请号：RU2010133169

申请日：2008-12-23

Applicant: ABB TECHNOLOGY AG

Inventor： DEFNES LARS ,  KHARNEFORS LENNART ,  PETTERSSON ANDERS J ,  SIL ESTREM ROLAND ,  ASPLUND GUNNAR

IPC: H02M7/483

Abstract: Изобретениеотноситсяк силовомупреобразованию. Устройстводляпреобразованиянапряженияпостоянноготокав напряжениепеременноготокаи наоборотсодержитсистемууправлениядляуправленияпреобразованиемнапряженияи, поменьшеймере, однуфазнуюцепь (1), вкоторойпервый (Uvp1) источникнапряженияподключенпоследовательномеждупервойклеммой (4) постоянноготокаи первойклеммой (6) переменноготокаи вкоторойвторой (Uvn1) источникнапряженияподключенпоследовательномеждупервой (6) клеммойпеременноготокаи второйклеммой (5) постоянноготока. Каждыйизисточниковнапряжениясодержит, поменьшеймере, первыйи второйсубмодули (15), соединенныепоследовательно, причемкаждыйсубмодуль (15) содержит, поменьшеймере, дваэлектронныхсиловыхпереключателя (16), соединенныепараллельнос, поменьшеймере, однимконденсатором (17). Системауправлениясодержитцентральныйблок (19) управленияи, поменьшеймере, дваподблока (20), причемцентральныйблок (19) управленияпередаетнакаждыйподблок (20) опорноенапряжение (ua_ref) переменноготокаи несущийсигнал (s_sw) переключения, икаждыйподблок (20) управляетпереключениемэлектронныхсиловыхпереключателей (16) одногоизсубмодулей (15) согласношаблонуШИМтакимобразом, чтобыкаждыйраз, когданесущийсигнал (s_sw) переключенияпересекаетопорноенапряжение (ua_ref) переменноготока, навыходныеклеммы (26, 27) соответствующегосубмодуля (15) поступалолибонапряжениенаконденсаторе (17), либонулевоенапряжение. Техническийрезультат - минимизацияобъемаданныхпередаваемыхцентральнымблокомуправления. 13 з.п. ф-лы, 8 ил.

公开(公告)号：RU2451386C1

公开(公告)日：2012-05-20

申请号：RU2010154446

申请日：2008-06-09

Applicant: ABB TECHNOLOGY AG

Inventor： ASPLUND GUNNAR

IPC: H02M7/49

Abstract: Преобразовательнапряжениятипа M2LC имеетпоследовательноесоединениепереключающихячеек (7), причемкаждаяпереключающаяячейкаимеет, соднойстороны, поменьшеймере, двеполупроводниковыхсборки, соединенныхпоследовательнои имеющихкаждыйполупроводниковоеустройствозапираемоготипаи обратныйдиод, соединенныйпараллельнос ним, и, сдругойстороны, поменьшеймере, одиннакапливающийэнергиюконденсатор (20). Последовательноесоединениепереключающихячеекимеетпервыйконец (61), соединенныйс полюсом (5) постоянногонапряженияс высокимпотенциалом, ипротивоположныйконец (62), соединенныйс фазнымвыводом (10) преобразователя. Компоновка (70) сконфигурированас возможностьюсоединенияфазноговывода (10) сдругимполюсом (6) снейтральнымпотенциаломнасторонепостоянногонапряженияпреобразователя, иподачиимпульсовнапряжениянафазныйвывод, которыемогутбытькакположительными, таки отрицательнымиотносительнонейтральногопотенциала. Техническийрезультат - возможностьоднополярнойработыбезтрансформатора. 2 н. и 9 з.п. ф-лы, 9 ил.

公开(公告)号：HK1151636A1

公开(公告)日：2012-02-03

申请号：HK11105630

申请日：2011-06-07

Applicant: ABB TECHNOLOGY AG

Inventor： ASPLUND GUNNAR

IPC: H02M20060101

Abstract: A device for converting a DC voltage into an AC voltage and vice versa comprises a control system to control the voltage conversion and at least one phase leg (1) with a first (Uvp1) voltage source connected in series between a first DC terminal (4) and a first AC terminal (6) and with a second (Uvn1) voltage source connected in series between the first AC terminal (6) and a second DC terminal (5). Each of the voltage sources comprises at least a first and a second submodule (15) in series-connection, where each submodule (15) comprises at least two power electronic switches (16) connected in parallel with at least one capacitor (17). The control system comprises a central control unit (19) and at least two subunits (20), where the central control unit (19) transmits to each subunit (20) a reference AC voltage (ua_ref) and a switching carrier signal (s_sw) and where each subunit (20) controls the switching of the power electronic switches (16) of one of the submodules (15) according to a PWM pattern so that each time the switching carrier signal (s_sw) crosses the reference AC voltage (ua_ref) either the voltage across the capacitor (17) or a zero voltage are applied to output terminals (26, 27) of the corresponding submodule (15).