公开(公告)号：ZA201006691B

公开(公告)日：2011-05-25

申请号：ZA201006691

申请日：2010-09-17

Applicant: ABB TECHNOLOGY AG

Inventor： JACOBSON BJORN ,  ASPLUND GUNNAR

Abstract: A Voltage Source Converter having at least one phase leg connected to opposite poles of a direct voltage side of the converter and comprising a series connection of switching elements including at least one energy storing capacitor and configured to obtain two switching states, namely a first switching state and a second switching state, in which the voltage across said at least one energy storing capacitor and a zero voltage, respectively, is applied across the terminals of the switching element, has semiconductor chips of said switching elements arranged in stacks comprising each at least two semiconductor chips. The converter comprises an arrangement configured to apply a pressure to opposite ends of each stack.

公开(公告)号：AR072026A1

公开(公告)日：2010-07-28

申请号：ARP090102081

申请日：2009-06-10

Applicant: ABB TECHNOLOGY AG

Inventor： ASPLUND GUNNAR

IPC: H02H9/02 ,  H02H3/087

Abstract: Una instalacion para transmitir energ¡a electrica comprende una red de voltaje continuo para una corriente continua de alto voltaje y al menos una red de voltaje alterno conectada a la misma por intermedio de una estacion (4). La estacion comprende por lo menos un convertidor de fuente de voltaje (10) adaptado para convertir voltaje continuo en voltaje alterno, e inversamente. En la red de voltaje continuo, al menos una conexion paralela (15') de al menos un dispositivo semiconductor (16') de tipo desconexion (turn-off type) y un resistor (18'), se halla conectada en serie con una l¡nea de voltaje continuo (2,3) de la red de voltaje continuo.

公开(公告)号：CA2727192A1

公开(公告)日：2009-12-17

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：CA2727112A1

公开(公告)日：2009-12-17

申请号：CA2727112

申请日：2008-06-09

Applicant: ABB TECHNOLOGY AG

Inventor： ASPLUND GUNNAR

IPC: H02M7/49 ,  H02J3/36

Abstract: A Voltage Source Converter of M2LC-type has a series connection of switching cells (7), in which each switching cell has on one hand at least two semiconductor assemblies connected in series and having each a semiconductor device of turn-off type and a free-wheeling diode connected in parallel therewith and on the other at least one energy storing capacitor (20). The series connection of switching cells has one first end (61) connected to a direct voltage pole (5) on high voltage potential and an opposite end (62) connected to a phase output (10) of the converter. An arrangement (70) is configured to connect the phase output (10) to another said pole (6) on neutral voltage potential on a direct voltage side of the converter and to deliver voltage pulses to said phase output being both positive and negative with respect to said neutral potential.