公开(公告)号：US20070153555A1

公开(公告)日：2007-07-05

申请号：US11639300

申请日：2006-12-15

申请人： Christian Stulz ,  Christoph Eichler ,  Erich Suter ,  Adrian Zuckerberger ,  Pieder Jorg ,  Thomas Berner

发明人： Christian Stulz ,  Christoph Eichler ,  Erich Suter ,  Adrian Zuckerberger ,  Pieder Jorg ,  Thomas Berner

IPC分类号： H02M3/335

CPC分类号： H02M5/458 ,  H02M7/49

摘要： A polyphase converter circuit having p≧3 phases (R, Y, B) and a converter circuit element provided for each phase (R, Y, B) is specified, each converter circuit element having a rectifier unit, a DC voltage circuit which is connected to the rectifier unit and an inverter unit which is connected to the DC voltage circuit. In addition, a first AC voltage output of each inverter unit forms a phase connection, and second AC voltage outputs of the inverter units are star-connected. In order to produce harmonics which are as low as possible with respect to the fundamental of the voltage and the current of an electrical AC voltage system which is connected on the input side to the converter circuit, n transformers are provided, each having a primary winding and m three-phase secondary windings, where n≧2 and m≧3. Furthermore, p sets of secondary windings are provided, each set of secondary windings being formed by in each case m p three-phase secondary windings of each transformer, and each set of secondary windings with the associated secondary windings being connected to the rectifier unit of a respective converter circuit element.

摘要翻译： 规定了具有p = 3相（R，Y，B）和为每相（R，Y，B）提供的转换器电路元件的多相转换器电路，每个转换器电路元件具有整流单元，DC电压电路 连接到整流单元和连接到直流电压电路的逆变器单元。 此外，每个逆变器单元的第一AC电压输出形成相位连接，并且逆变器单元的第二AC电压输出是星形连接的。 为了产生相对于在输入侧连接到转换器电路的电气交流电压系统的电压和电流的基极尽可能低的谐波，提供n个变压器，每个变压器具有初级绕组 和三相次级绕组，其中n> = 2且m> = 3。 此外，提供p组次级绕组，每组次级绕组在每种情况下都形成 $\frac{}{}$

公开(公告)号：US07499297B2

公开(公告)日：2009-03-03

申请号：US11639300

申请日：2006-12-15

申请人： Christian Stulz ,  Christoph Eichler ,  Erich Suter ,  Adrian Zuckerberger ,  Pieder Jörg ,  Thomas Berner

发明人： Christian Stulz ,  Christoph Eichler ,  Erich Suter ,  Adrian Zuckerberger ,  Pieder Jörg ,  Thomas Berner

IPC分类号： H02M5/458

CPC分类号： H02M5/458 ,  H02M7/49

摘要： A polyphase converter circuit having p≧3 phases (R, Y, B) and a converter circuit element provided for each phase (R, Y, B) is specified, each converter circuit element having a rectifier unit, a DC voltage circuit which is connected to the rectifier unit and an inverter unit which is connected to the DC voltage circuit. In addition, a first AC voltage output of each inverter unit forms a phase connection, and second AC voltage outputs of the inverter units are star-connected. In order to produce harmonics which are as low as possible with respect to the fundamental of the voltage and the current of an electrical AC voltage system which is connected on the input side to the converter circuit, n transformers are provided, each having a primary winding and m three-phase secondary windings, where n≧2 and m≧3. Furthermore, p sets of secondary windings are provided, each set of secondary windings being formed by in each case m p three-phase secondary windings of each transformer, and each set of secondary windings with the associated secondary windings being connected to the rectifier unit of a respective converter circuit element.

摘要翻译： 规定了具有p = 3相（R，Y，B）和为每相（R，Y，B）提供的转换器电路元件的多相转换器电路，每个转换器电路元件具有整流单元，DC电压电路 连接到整流单元和连接到直流电压电路的逆变器单元。 此外，每个逆变器单元的第一AC电压输出形成相位连接，并且逆变器单元的第二AC电压输出是星形连接的。 为了产生相对于在输入侧连接到转换器电路的电气交流电压系统的电压和电流的基极尽可能低的谐波，提供n个变压器，每个变压器具有初级绕组 和三相次级绕组，其中n> = 2且m> = 3。 此外，提供p组次级绕组，每组次级绕组在每种情况下都形成 $\frac{}{}$