公开(公告)号：HK1151635A1

公开(公告)日：2012-02-03

申请号：HK11105560

申请日：2011-06-02

Applicant: ABB TECHNOLOGY AG

Inventor： DOEFNAES LARS ,  HARNEFORS LENNART ,  PETTERSSON ANDERS J ,  SILJESTROEM ROLAND ,  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).

公开(公告)号：CA2709699A1

公开(公告)日：2009-07-16

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：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.