公开(公告)号：EP3484045A1

公开(公告)日：2019-05-15

申请号：EP18204060.0

申请日：2018-11-02

申请人： GE Energy Power Conversion Technology Ltd

发明人： Salter, Benjamin Guy ,  Butcher, Martin Samuel

IPC分类号： H02P29/024 ,  H02K11/22

摘要： The invention relates to a power system that includes an electrical machine 1, e.g., a motor or generator. The electrical machine has a stator 2 with a stator winding connected to a power converter. The power system includes an assembly 6 to reduce, and optionally eliminate, common mode currents between the electrical machine 1 and the power converter. The assembly includes a stator frame 8 connected to ground potential and an electrical insulator (e.g., a plurality of stator mounts 14) located between the stator frame 8 and the stator 2.

公开(公告)号：EP2806549A1

公开(公告)日：2014-11-26

申请号：EP13168560.4

申请日：2013-05-21

申请人： GE Energy Power Conversion Technology Ltd

发明人： Banham-Hall, Dominic David ,  Butcher, Martin Samuel

IPC分类号： H02M3/158

CPC分类号： H02M1/15 ,  H02M3/1584 ,  H02M2003/1586

摘要： A method of operating a power converter arrangement is described. The power converter arrangement includes a dc link (2) and a dc load/source (4) such as a battery. An active rectifier/inverter (20) having dc terminals (24a, 24b) is connected to the dc link (2) and is adapted to provide a variable dc link voltage V 1 between maximum and minimum limits. An interleaved buck (or step down) converter (1) having a plurality of converter circuits is connected between the dc link (2) and the dc load/source (4). Each converter circuit includes a first switch (6 1 , 6 2 , 6 3 ), a second switch (8 1 , 8 2 , 8 3 ) and a reactor (101, 102 , 10 3 ). The power converter arrangement is controlled according to a method where one or more null values of dc link voltage are determined with reference to the voltage V 2 across the dc load/source (4). If a null value of dc link voltage is between the maximum and minimum limits, the active rectifier/inverter (20) is controlled (e.g., by a controller (30)) to provide a dc link voltage that is substantially the same as the null value of dc link voltage.

摘要翻译： 描述了一种操作功率转换器装置的方法。 功率转换器装置包括直流链路（2）和诸如电池的直流负载/源（4）。 具有直流端子（24a，24b）的有源整流器/逆变器（20）连接到直流链路（2），并且适于在最大和最小极限之间提供可变直流链路电压V 1。 具有多个转换器电路的交错降压（或降压）转换器（1）连接在直流链路（2）和直流负载/源（4）之间。 每个转换器电路包括第一开关（6 1，6 2，6 3），第二开关（8 1，8 2，8 3）和反应器（101,102,103）。 根据一种方法控制功率转换器装置，其中参考直流负载/源（4）上的电压V 2来确定直流链路电压的一个或多个空值。 如果直流母线电压的零值在最大和最小极限之间，则有源整流器/逆变器（20）由控制器（30）进行控制，以提供与零点基本相同的直流链路电压 直流链路电压值。