公开(公告)号：US20150372612A1

公开(公告)日：2015-12-24

申请号：US14762176

申请日：2014-01-08

Applicant: ABB Technology Ltd

Inventor： Alireza NAMI ,  Liwei WANG

IPC: H02M7/162 ,  H02M7/5388 ,  H02M7/521 ,  H02M7/219

CPC classification number: H02M7/162 ,  H02M7/219 ,  H02M7/483 ,  H02M7/521 ,  H02M7/5388 ,  H02M2001/0048 ,  H02M2007/4835 ,  Y02B70/1491

Abstract: It is presented a converter cell (10a; 10b) arranged to be used in a high voltage multilevel converter. The converter cell comprises: an energy storage element (16a; 16b) and a plurality of switching elements (S1, . . . , S8). The plurality of switching elements comprises at least one thyristor (S3; S8) and a plurality of transistors (S1, S2, S4; S5, S6, S7). Each one of the at least one thyristor (S3; S8) is provided in a position for a switching element in the converter cell where, during normal operation of the converter cell, the at least one thyristor is in a continuous conducting state. This reduces the power losses of the converter cell. A corresponding multilevel converter and a method are also presented.

Abstract translation: 呈现出被布置成用于高电压多电平转换器的转换器单元（10a; 10b）。 转换器单元包括：能量存储元件（16a; 16b）和多个开关元件（S1，...，S8）。 多个开关元件包括至少一个晶闸管（S3; S8）和多个晶体管（S1，S2，S4; S5，S6，S7）。 所述至少一个晶闸管（S3; S8）中的每一个设置在所述转换器单元中的开关元件的位置，在所述转换器单元的正常操作期间，所述至少一个晶闸管处于连续导通状态。 这降低了转换器电池的功率损耗。 还提出了相应的多电平转换器和方法。

公开(公告)号：US20150357905A1

公开(公告)日：2015-12-10

申请号：US14653721

申请日：2013-01-21

Applicant: ABB TECHNOLOGY LTD

Inventor： Alireza NAMI ,  Liwei WANG

IPC: H02M1/32 ,  H02M7/06 ,  H02M7/219

CPC classification number: H02M1/32 ,  H02M7/06 ,  H02M7/219 ,  H02M7/483 ,  H02M7/5388 ,  H02M7/797 ,  H02M2007/4835

Abstract: A multilevel converter converting between AC and DC includes a phase arm with a number of cells between a DC pole and an AC terminal, the cells include at least one hybrid full bridge cell including a first cell connection terminal for coupling to the DC pole, a second cell connection terminal for coupling to the AC terminal, an energy storage element having a positive and a negative end, a first group of series connected semiconducting units in parallel with the energy storage element, where a junction between these forms one cell connection terminal, and a second group of series connected semiconducting units in parallel with the energy storage element and including a third semiconducting unit and a fourth semiconducting unit consisting of a number of unidirectional conducting elements including at least one unidirectional conducting element, where a junction between these forms a further cell connection terminal.

Abstract translation: 在AC和DC之间转换的多电平转换器包括在DC极和AC端之间具有多个电池的相臂，所述电池包括至少一个混合式全桥单元，其包括用于耦合到DC极的第一单元连接端， 用于耦合到AC端子的第二单元连接端子，具有正端和负端的能量存储元件，与能量存储元件并联的第一组串联连接的半导体单元，其中这些结点形成一个单元连接端子， 以及与所述能量存储元件并联的第二组串联连接的半导体单元，并且包括由包括至少一个单向导电元件的多个单向导电元件组成的第三半导体单元和第四半导体单元，其中这些形成一个 进一步小区连接终端。