公开(公告)号：US20130258726A1

公开(公告)日：2013-10-03

申请号：US13879573

申请日：2010-10-15

申请人： Subhasish Mukherjee ,  Tomas Jonsson ,  Sasitharan Subramanian

发明人： Subhasish Mukherjee ,  Tomas Jonsson ,  Sasitharan Subramanian

IPC分类号： H02M7/537

CPC分类号： H02M7/537 ,  H02J3/36 ,  H02M7/483 ,  H02M2007/4835 ,  Y02E60/60

摘要： An arrangement transmits power between a DC power line and an AC power line carrying a voltage having a number of phases. The arrangement includes a number of transformers, one for each phase and a number of power transfer modules, one for each phase, connected in series between the DC power line and ground, where each module includes a first branch including series connected converter cells and a second branch including series connected switching elements. The primary winding of a transformer is connected to a corresponding AC phase conductor of the AC power line and the secondary winding is connected between a midpoint of the first branch and a midpoint of the second branch of a corresponding power transfer module.

摘要翻译： 一种布置在DC电力线和承载具有多个相位的电压的AC电力线之间传输电力。 该装置包括多个变压器，每相一个变压器和多个电力传输模块，每个相位一个串联连接在直流电源线和地之间，其中每个模块包括第一分支，其包括串联连接的转换器单元和 第二分支包括串联连接的开关元件。 变压器的初级绕组连接到交流电源线的相应的交流相位导体，次级绕组连接在第一分支的中点和相应的功率传递模块的第二分支的中点之间。

公开(公告)号：US20130106184A1

公开(公告)日：2013-05-02

申请号：US13807618

申请日：2011-06-30

申请人： Jürgen Häfner ,  Björn Jacobson ,  Tomas Jonsson ,  Kerstin Lindén ,  Bertil Berggren

发明人： Jürgen Häfner ,  Björn Jacobson ,  Tomas Jonsson ,  Kerstin Lindén ,  Bertil Berggren

IPC分类号： H02J1/00

CPC分类号： H02J1/00 ,  H01H33/596 ,  H02H7/1257 ,  H02H7/268 ,  Y10T307/313 ,  Y10T307/344 ,  Y10T307/391 ,  Y10T307/406 ,  Y10T307/729 ,  Y10T307/747

摘要： The present invention relates to an HVDC switchyard arranged to interconnect a first part of a DC grid with a second part of the DC grid. By means of the invention, a first part of the DC grid is connected to the busbars of the HVDC switchyard via a fast DC breaker, while further part(s) of the DC grid are connected to the busbars of the HVDC switchyard by means of switchyard DC breakers of lower breaking speed. By use of the inventive HVDC switchyard arrangement, the cost for the HVDC switchyard can be considerably reduced, while adequate protection can be provided. In one embodiment, the fast DC breaker is an HVDC station DC breaker forming part of an HVDC station. In another embodiment, the fast DC breaker is a switchyard DC breaker.

摘要翻译： 本发明涉及一种将DC网格的第一部分与DC网格的第二部分相互连接的HVDC开关场所。 通过本发明，DC电网的第一部分经由快速DC断路器连接到HVDC开关站的母线，而直流电网的另外部分通过以下方式连接到HVDC开关站的汇流条： 开关柜断路器的断开速度较低。 通过使用本发明的高压直流输电开关装置，可以显着地降低HVDC开关站的成本，同时可以提供足够的保护。 在一个实施例中，快速DC断路器是形成HVDC站的一部分的HVDC站DC断路器。 在另一个实施例中，快速DC断路器是开关站DC断路器。

公开(公告)号：US20120092904A1

公开(公告)日：2012-04-19

申请号：US13085949

申请日：2011-04-13

申请人： Reynaldo NUQUI ,  Jiuping PAN ,  Kailash SRIVASTAVA ,  Tomas JONSSON

发明人： Reynaldo NUQUI ,  Jiuping PAN ,  Kailash SRIVASTAVA ,  Tomas JONSSON

IPC分类号： H02J3/36

CPC分类号： H02J3/36 ,  G06F1/26 ,  H02H7/125 ,  H02J13/0062 ,  Y02E60/60 ,  Y02E60/7838 ,  Y04S40/124

摘要： Multi-terminal HVDC systems and control methods therefore are disclosed. Methods for controlling multi-terminal HVDC systems having a plurality of converter stations may include receiving a plurality of measurements from a plurality of measurement units disposed on the HVDC system, identifying from the measurements a disruption within the HVDC system, monitoring the measurements to identify a steady-state disrupted condition for the HVDC system, calculating a new set point for at least one of the plurality of converter stations, which new set point may be based on the steady-state disrupted condition and the measurements, and transmitting the new set point to the at least one of the plurality of converter stations. In some examples, the HVDC systems may include an HVDC grid interconnecting the plurality of converter stations and a controller communicatively linked to the plurality of measurement units and the plurality of converter stations.

摘要翻译： 因此，公开了多端子HVDC系统和控制方法。 用于控制具有多个转换器站的多端子HVDC系统的方法可以包括从设置在HVDC系统上的多个测量单元接收多个测量值，从测量中识别HVDC系统内的中断，监视测量结果以识别 用于HVDC系统的稳态中断条件，为多个转换站中的至少一个转换站计算新的设定点，该新的设定点可以基于稳态中断条件和测量，并且传输新的设定点 到所述多个转换站中的至少一个。 在一些示例中，HVDC系统可以包括互连多个转换器站的HVDC网格和通信地链接到多个测量单元和多个转换器站的控制器。

公开(公告)号：US20080298308A1

公开(公告)日：2008-12-04

申请号：US12097195

申请日：2005-12-15

申请人： Hans Hannu ,  Tomas Jonsson ,  Per Synnergren

发明人： Hans Hannu ,  Tomas Jonsson ,  Per Synnergren

IPC分类号： H04Q7/38 ,  H04M11/04

CPC分类号： H04W4/10 ,  H04W68/00 ,  H04W76/45 ,  H04W84/04 ,  H04W84/18

摘要： The present invention is directed towards providing event-triggered communication in a half duplex communication environment of a wireless communication network (10). A first end terminal (12) sends a selection of an end terminal (14) in a group of terminals to act as an event notifying device to a server (22). The event notifying device (14) compares an event with a threshold and sends an event notifier to the server if the event exceeds the threshold. If it receives the event notifier, the server prioritises data from the event notifying device over ongoing communication sessions for other devices in the group, receives data from the event notifying device associated with the event notifier and transports data indicative of the event to other devices of the group, in order to inform them of the event.

摘要翻译： 本发明涉及在无线通信网络（10）的半双工通信环境中提供事件触发通信。 第一终端（12）在一组终端中发送终端（14）的选择，以作为事件通知设备发送给服务器（22）。 事件通知装置（14）将事件与阈值进行比较，并且如果事件超过阈值则将事件通知器发送到服务器。 如果接收到事件通知器，则服务器将来自事件通知设备的数据优先于组中其他设备的正在进行的通信会话，从与事件通知器相关联的事件通知设备接收数据，并将指示事件的数据传送到其他设备 该小组，以通知他们的事件。

公开(公告)号：US06995994B2

公开(公告)日：2006-02-07

申请号：US10488289

申请日：2002-09-17

申请人： Bo Bijlenga ,  Peter Lundberg ,  Tomas Jonsson ,  Nicklas Johansson ,  Esie Ramezani

发明人： Bo Bijlenga ,  Peter Lundberg ,  Tomas Jonsson ,  Nicklas Johansson ,  Esie Ramezani

IPC分类号： H02H7/00

CPC分类号： H02M7/4826 ,  H02M1/32 ,  H02M2001/0009

摘要： The invention relates to a converter provided with a resonant circuit (16), which converter comprises a device (31) for measuring the derivative (dI/dt) of the current through the current valves 82, 3) and a detection device (32) co-operating with said measuring device (31) for detecting a short-circuit in the converter, the detection device (32) being adapted to detect a short-circuit current when the current derivative (dI/dt) measured by the measuring device (31) is equal to or exceeds a stipulated current derivative limit value (dI/dtlim) during a length of time exceeding a stipulated time limit value (tlim). The invention also relates to a method for controlling such a converter.

摘要翻译： 本发明涉及一种具有谐振电路（16）的转换器，该转换器包括用于测量通过电流阀82,3的电流的导数（dI / dt）和检测装置（32）的装置（31） 与所述测量装置（31）配合用于检测转换器中的短路，检测装置（32）适于在由测量装置测量的电流导数（dI / dt）时检测短路电流 31）等于或超过规定的电流微分极限值（dI / dt），在超过规定的时间限制值的时间内（t ）。 本发明还涉及一种用于控制这种转换器的方法。

公开(公告)号：US20050030140A1

公开(公告)日：2005-02-10

申请号：US10239866

申请日：2001-04-02

申请人： Mikael Dahlgren ,  Udo Fromm ,  Gunnar Russberg ,  Christian Sasse ,  Anders Eriksson ,  Tomas Jonsson ,  Svante Soderholm

发明人： Mikael Dahlgren ,  Udo Fromm ,  Gunnar Russberg ,  Christian Sasse ,  Anders Eriksson ,  Tomas Jonsson ,  Svante Soderholm

IPC分类号： H01F27/255 ,  H01F27/38 ,  H01F30/12

CPC分类号： H01F30/12 ,  H01F27/255 ,  H01F27/38

摘要： An induction device, such as a transformer or reactor, which includes windings of different phases arranged around magnetic core limbs. The magnetic core limbs are connected by at least one body formed from magnetic particles in a matrix of a dielectric material. The device can also be substantially spherical or cylindrical. Regulating windings mounted on inner and outer magnetic core parts may be transferable between the inner and outer magnetic core parts.

摘要翻译： 一种感应装置，例如变压器或电抗器，其包括围绕磁芯四肢布置的不同相绕组。 磁芯分支通过由电介质材料的矩阵中的磁性颗粒形成的至少一个主体连接。 该装置也可以是基本上球形的或圆柱形的。 安装在内部和外部磁芯部件上的调节绕组可以在内部和外部磁芯部件之间传递。

公开(公告)号：US06361147B1

公开(公告)日：2002-03-26

申请号：US09333388

申请日：1999-06-15

申请人： Tomas Jonsson

发明人： Tomas Jonsson

IPC分类号： B41J206

CPC分类号： B41J2/4155 ,  G03G15/346 ,  G03G2217/0025

摘要： A direct electrostatic printing device and method print an image to an information carrier with increased density during printing. This is attained by measuring undesired image density variations in a direction parallel to the relative movement between an image receiving member and a printhead structure. The density variations are caused by distance variations between the printhead structure and a pigment particle source during printing, which at least in part is caused by a relative movement between at least a part of the pigment particle source and the printhead structure. A control unit is arranged to control the transport of pigment particles in such a way as to compensate for these undesired image density variations during printing, thus attaining a percepted uniform image density along a printed image for a specific desired image density.

摘要翻译： 直接静电印刷装置和方法在打印期间以更高的密度将图像打印到信息载体。 这是通过在平行于图像接收构件和打印头结构之间的相对移动的方向上测量不期望的图像浓度变化来实现的。 密度变化是由打印头结构和颜料颗粒源之间的距离变化引起的，其至少部分地由颜料颗粒源的至少一部分与打印头结构之间的相对运动引起。 控制单元被布置成控制颜料颗粒的输送，以便在打印期间补偿这些不期望的图像浓度变化，从而获得沿印刷图像的感知的均匀图像密度以获得特定的所需图像密度。

公开(公告)号：US6102525A

公开(公告)日：2000-08-15

申请号：US44479

申请日：1998-03-19

申请人： Tomas Jonsson

发明人： Tomas Jonsson

IPC分类号： B41J2/385 ,  B41J2/415 ,  G03G15/05 ,  G03G15/34 ,  B41J2/06

CPC分类号： G03G15/346 ,  B41J2/4155 ,  G03G2215/0187 ,  G03G2217/0025

摘要： A direct electrostatic printing device and method for printing an image to an information carrier with increased density harmonization. By continuously keeping track of the amount of pigment particles each aperture has available and thereafter using this information and the desired print density to control the control electrodes of the individual apertures, a harmonization of the printed density from different apertures is attained.

摘要翻译： 一种直接静电印刷装置和方法，用于以更高的密度协调将图像打印到信息载体上。 通过连续跟踪每个孔可用的颜料颗粒的量，此后使用该信息和期望的打印浓度来控制各个孔的控制电极，可以实现来自不同孔的印刷密度的协调。

公开(公告)号：US6081283A

公开(公告)日：2000-06-27

申请号：US44480

申请日：1998-03-19

申请人： Tomas Jonsson

发明人： Tomas Jonsson

IPC分类号： B41J2/385 ,  B41J2/415 ,  G03G15/05 ,  B41J2/06

CPC分类号： B41J2/4155

摘要： A direct electrostatic printing device and method for printing an image to an information carrier with increased density harmonization. This is attained by measuring the behavior of the apertures and subsequently adjusting the control parameters of at least the diverging apertures. The measurement of the behaviour of the apertures is suitably performed by scanning a known print sample with a predetermined density. The scanned values are inverted around a predetermined value for which no compensation is done to create a compensation function. At least the apertures which have a behavior which diverges from a predetermined behaviour are compensated according to the compensation function, thereby enabling an increased density harmonization. The compensation function can preferably be signal processed by, for example, a low pass filtering.

摘要翻译： 一种直接静电印刷装置和方法，用于以更高的密度协调将图像打印到信息载体上。 这通过测量孔的行为并随后调节至少发散孔的控制参数来实现。 通过以预定的密度扫描已知的打印样品来适当地执行孔径的行为的测量。 扫描的值在预定值周围进行反转，对于该预定值不进行补偿以产生补偿功能。 至少根据补偿功能补偿具有从预定行为偏离的行为的孔，从而能够增加密度的协调。 补偿功能可以优选地通过例如低通滤波来进行信号处理。

公开(公告)号：US5701239A

公开(公告)日：1997-12-23

申请号：US598389

申请日：1996-02-08

申请人： Per-Erik Bjorklund ,  Tomas Jonsson ,  Lars-Erik Juhlin

发明人： Per-Erik Bjorklund ,  Tomas Jonsson ,  Lars-Erik Juhlin

IPC分类号： H02J3/18 ,  H02J3/36 ,  H02M7/155 ,  H02M3/24 ,  H02M5/45

CPC分类号： H02J3/36 ,  Y02E60/60

摘要： An installation for transmission of electric power by means of high-voltage direct current has two converters (SRI, SRII), each of which is connected to an alternating-voltage network (NI, NII) and which are connected to each other through a dc connection (L). One converter (SRI) is controlled as a rectifier and another converter (SRII) is controlled as an inverter. One converter (SRI) is current-controlling and another converter (SRII) is voltage-controlling. The installation has means (VARC.sub.rect) adapted, at such a change of the control angle (.alpha..sub.rect) of the current-controlling converter (SRI) that the angle reaches a limit of a predetermined interval (.alpha..sub.max nom rect -.alpha..sub.min nom rect) to control, by means of the voltage-controlling converter (SRII), the direct voltage (Ud) of the transmission in such a way that said change is limited.

摘要翻译： 通过高压直流电传输电力的设备有两个转换器（SRI，SRII），每个转换器连接到一个交流电压网络（NI，NII），并通过一个直流 连接（L）。 一个转换器（SRI）被控制为整流器，另一个转换器（SRII）被控制为逆变器。 一个转换器（SRI）是电流控制，另一个转换器（SRII）是电压控制的。 安装具有在电流控制转换器（SRI）的角度达到预定间隔的极限（αmax nom rect-αmin nom rect）的控制角（α1）的这种改变的情况下适用的装置（VARCrect） ）通过电压控制转换器（SRII）来控制变速器的直流电压（Ud），使得所述变化受到限制。