公开(公告)号：US06205039B1

公开(公告)日：2001-03-20

申请号：US09445550

申请日：1999-12-09

Applicant: Urban Åström ,  Hans Björklund ,  Krister Nyberg ,  Roland Siljeström ,  Gunnar Asplund

Inventor： Urban Åström ,  Hans Björklund ,  Krister Nyberg ,  Roland Siljeström ,  Gunnar Asplund

IPC: H02H712

CPC classification number: H02M1/088 ,  G01R31/40

Abstract: A device in a valve on high voltage potential level and in a high voltage converter station comprises members arranged on high voltage level and adapted to detect parameters of a voltage divider circuit consisting of resistances (24, 25) and capacitors (27, 28) connected in series and across each thyristor of said valve. The capacitors are of self-healing type, in which from the point of time for occurring of a possible fault thereof the capacitance is gradually reduced, and said members are adapted to carry out measurements so as to determine whether the capacitance of the capacitors is changed over the time.

Abstract translation: 高电压电位阀中的装置和高电压转换器站中的装置包括被布置在高电压电平上并适于检测由电阻（24,25）和电容器（27,28）连接的分压电路的参数的构件 串联并跨越所述阀的每个晶闸管。 电容器是自恢复型的，其中从发生可能故障的时间点开始电容逐渐减小，并且所述构件适于进行测量，以便确定电容器的电容是否改变 一段时间

公开(公告)号：US06185116B2

公开(公告)日：2001-02-06

申请号：US09445551

申请日：1999-12-09

Applicant: Urban Åström ,  Krister Nyberg ,  Roland Siljeström ,  Gunnar Asplund ,  Hans Björklund

Inventor： Urban Åström ,  Krister Nyberg ,  Roland Siljeström ,  Gunnar Asplund ,  Hans Björklund

IPC: H02J336

CPC classification number: H05K7/20927

Abstract: A device for supervising the cooling of a cooling system of a valve of a high voltage converter station located on high voltage potential level comprises members (31) located on high voltage potential level and adapted to detect the temperature at cooling blocks (32) of the valve on high voltage potential level and send values so detected to first control units (3) for controlling semiconductor components (4) of the valve. The first control units have means (20) for treating said values detected and the first control units are adapted to send data resulting from said treatment to an arrangement (16) for supervising said valve located on low potential level.

Abstract translation: 用于监控位于高电压电位电平的高电压转换器站的阀的冷却系统的冷却的装置包括位于高电压电位水平的构件（31），并且适于检测位于高电位电位的冷却块（32）处的温度 并且将如此检测的值发送到用于控制阀的半导体部件（4）的第一控制单元（3）。 第一控制单元具有用于处理检测到的所述值的装置（20），并且第一控制单元适于将从所述处理产生的数据发送到用于监控位于低电位水平上的所述阀的装置（16）。

公开(公告)号：US06151201A

公开(公告)日：2000-11-21

申请号：US125766

申请日：1998-10-27

Applicant: Gunnar Asplund ,  Olle Ekwall ,  Olaf Saksvik

Inventor： Gunnar Asplund ,  Olle Ekwall ,  Olaf Saksvik

IPC: H01B17/42 ,  H01L23/60 ,  H01L25/11 ,  H02M7/04 ,  H02H1/00

CPC classification number: H01L23/60 ,  H01L25/117 ,  H01L2924/0002 ,  H01L2924/3011

Abstract: A gas-insulated semiconductor valve for high voltage power has an elongated valve stack with a plurality of semiconductor elements. The valve stack is provided with electrostatic shields for reducing the stresses on the insulating medium. The shields comprise a plurality of annular shields distributed along the longitudinal axis of the valve stack. The shields are arranged in planes which are substantially perpendicular to the longitudinal axis of the stack and surround the valve stack. The curved part of each shield has a substantially constant radius of curvature.

Abstract translation: PCT No.PCT / SE97 / 00495 Sec。 371日期：1998年10月27日第 102（e）日期1998年10月27日PCT 1997年3月24日PCT公布。 WO97 / 36363 PCT出版物 日期1997年10月2日用于高压电力的气体绝缘半导体阀具有带有多个半导体元件的细长的阀叠层。 阀组具有用于减小绝缘介质上的应力的静电屏蔽。 屏蔽件包括沿着阀芯的纵向轴线分布的多个环形屏蔽件。 屏蔽布置在基本上垂直于堆叠的纵向轴线并且围绕阀堆叠的平面中。 每个护罩的弯曲部分具有基本恒定的曲率半径。

公开(公告)号：US05999388A

公开(公告)日：1999-12-07

申请号：US931161

申请日：1997-09-16

Applicant: Gunnar Asplund

Inventor： Gunnar Asplund

IPC: H02H9/02 ,  H02H3/087 ,  H02H7/12 ,  H02J3/36 ,  H02J5/00 ,  H02M7/12 ,  H02M7/219 ,  H02H9/00

CPC classification number: H02H7/1257 ,  H02H3/087 ,  H02J3/36 ,  H03K17/0828 ,  H03K17/168 ,  H02H7/12 ,  H02H9/02 ,  H03K17/163 ,  Y02E60/60 ,  Y10S323/908

Abstract: Apparatus and method for limiting current in a direct voltage network of a HVDC power distribution system. A direct voltage network is connected to an alternating voltage network through a VSC-converter. At least one parallel connection including a semiconductor switching element is connected in series with the direct voltage network. A surge diverter is connected in parallel with the semiconductor switching element. During a high current condition in the direct voltage network, the switching element is switched off interrupting the current flow which is then diverted through the surge diverter which reduces the current flowing in the direct voltage network. By inserting a plurality of parallel connections, and selectively turning off a number of the semiconductor switching elements, a number of different levels of over current conditions in the direct voltage network may be controlled.

Abstract translation: 用于限制HVDC配电系统的直流电压网络中的电流的装置和方法。 直流电压网络通过VSC转换器连接到交流电压网络。 包括半导体开关元件的至少一个并联连接与直流电压网络串联连接。 浪涌分流器与半导体开关元件并联连接。 在直流电压网络中的高电流状态期间，开关元件被切断以中断电流，然后电流流过浪涌分流器，这降低了在直流电压网络中流动的电流。 通过插入多个并联连接并且选择性地关闭多个半导体开关元件，可以控制直流电压网络中的多个不同级别的过电流条件。

公开(公告)号：US5969956A

公开(公告)日：1999-10-19

申请号：US45896

申请日：1998-03-23

Applicant: Krister Nyberg ,  Hans Bjorklund ,  Gunnar Asplund ,  Roland Siljestrom ,  Urban strom

Inventor： Krister Nyberg ,  Hans Bjorklund ,  Gunnar Asplund ,  Roland Siljestrom ,  Urban strom

IPC: H02H1/00 ,  H02H3/04 ,  H02H7/12 ,  H02M1/092 ,  H02J3/36

CPC classification number: H02M1/092 ,  H02H7/1206 ,  H02H1/0069 ,  H02H3/04

Abstract: An apparatus and method for communication between low potential level and a valve of a high voltage converter station located on high voltage potential level is provided. The apparatus comprises means adapted to send serial messages on light conductors between a valve control unit and a first control unit for controlling semiconductor components of the valve of turn-on type on high voltage potential level in periods of time when the respective light conductor is free from signals associated with a change in the conducting state of the semiconductor component, such as turn-on and/or indications signals.

Abstract translation: 提供了一种用于低电位电平与位于高电压电位电平的高电压转换站的阀之间的通信的装置和方法。 该装置包括适于在阀控制单元和第一控制单元之间的轻导体上发送串行消息的装置，用于在相应的光导体自由的时间段内控制高电压电位电平的导通型阀门的半导体部件 来自与半导体部件的导通状态的变化相关联的信号，例如导通和/或指示信号。

公开(公告)号：US4333137A

公开(公告)日：1982-06-01

申请号：US205852

申请日：1980-11-10

Applicant: Gunnar Asplund

Inventor： Gunnar Asplund

IPC: H02M1/088 ,  H03K17/73 ,  H02H7/125

CPC classification number: H02M1/088

Abstract: A high voltage power converter has a number of thyristors interconnected. Symmetrical voltage dividers maintain equal voltage distribution across the thyristors. Each thyristor has a plurality of inductors associated therewith for reducing rapid current increases through the thyristors during firing which might injure the components and generate radio frequency interference.

Abstract translation: 高压功率转换器有许多晶闸管相互连接。 对称分压器在晶闸管两端保持相等的电压分配。 每个晶闸管具有与其相关联的多个电感器，用于在点火期间减少通过晶闸管的快速电流增加，这可能损坏部件并产生射频干扰。