公开(公告)号：EP2840699A3

公开(公告)日：2015-07-15

申请号：EP14177807.6

申请日：2014-07-21

申请人： GE Energy Power Conversion Technology Ltd

发明人： Zhang, Di ,  Garces, Luis Jose ,  Raju, Ravisekhar Nadimpalli ,  Lai, Rixin ,  Rockhill, Andrew Allen

IPC分类号： H02M7/483 ,  H02M7/487 ,  H02M7/515 ,  H02M7/757

CPC分类号： H02M7/483 ,  H02M7/487 ,  H02M7/5152 ,  H02M7/7575 ,  H02M2007/4835 ,  Y02E60/60

摘要： A power converter (300) includes at least one leg (301) with a first string (302) including a plurality of controllable semiconductor switches (330), a first connecting node (310), and a second connecting node (312). The first string (302) is operatively coupled across a first bus (306) and a second bus (308). The at least one leg (301) also includes a second string (304) operatively coupled to the first string (302) via the first connecting node (310) and the second connecting node (312), wherein the second string (304) includes a plurality of switching units (334). The first string (302) includes a first branch (314) and a second branch (316). The second branch (314) is operatively coupled to the first branch (312) via a third connecting node (318) and the third connecting node (318) is coupled to a ground connection.

摘要翻译： 功率转换器（300）包括具有包括多个可控半导体开关（330），第一连接节点（310）和第二连接节点（312）的第一串（302）的至少一个支路（301）。 第一串（302）跨越第一总线（306）和第二总线（308）可操作地耦合。 所述至少一个腿（301）还包括经由所述第一连接节点（310）和所述第二连接节点（312）可操作地耦合到所述第一串（302）的第二串（304），其中所述第二串（304）包括 多个切换单元（334）。 第一串（302）包括第一分支（314）和第二分支（316）。 第二分支（314）经由第三连接节点（318）可操作地耦合到第一分支（312），并且第三连接节点（318）耦合到接地连接。

公开(公告)号：EP0554903A2

公开(公告)日：1993-08-11

申请号：EP93101853.5

申请日：1993-02-05

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Tanaka, Shigeru, Intellectual Property Division ,  Ofosu-Amaah, William, Intellectual Property Div.

IPC分类号： H02M3/135 ,  H03K17/08 ,  H02M7/521

CPC分类号： H02M7/487 ,  H02M3/135 ,  H02M7/5152 ,  H03K17/08144

摘要： A snubber energy recovery circuit for protecting switching devices (GTO) from current and voltage, which comprises a snubber circuit connected in parallel with a switching device (GTO), a recovery path for recovery the energy stored in the snubber circuit, and a constant-current source (CSUP) for maintaining current flowing in the recovery path at a constant value. The snubber circuit is composed of a snubber diode (Ds) and a snubber capacitor (Cs), with one end of the recovery path being connected to the junction point of the snubber capacitor (Cs) and snubber diode (Ds).

摘要翻译： 缓冲能量回收电路，用于保护开关装置（GTO）从电流和电压的方法，其包括并联连接的开关装置（GTO）的缓冲电路，用于恢复存储在缓冲电路的能量回收路径，和一个恒 电流源（CSUP）用于维持电流在恒定值在回收路径中流动。 缓冲电路由缓冲二极管（DS）和缓冲电容器（CS）的，与回收路径的一端连接到所述缓冲电容器（CS）和缓冲二极管（Ds）与所述连接点。

公开(公告)号：EP0234293B1

公开(公告)日：1990-11-14

申请号：EP87100947.8

申请日：1987-01-23

申请人： Kabushiki Kaisha Meidensha

发明人： Matsuse, Koki ,  Kubota, Hisao

IPC分类号： H02M5/45

CPC分类号： H02P27/06 ,  H02J3/1892 ,  H02M7/5152 ,  H02P2201/03

公开(公告)号：EP0124719A1

公开(公告)日：1984-11-14

申请号：EP84102580.2

申请日：1984-03-09

申请人： Kabushiki Kaisha Meidensha

发明人： Matsuse, Kohki

IPC分类号： H02M5/45

CPC分类号： H02M5/4505 ,  H02M7/515 ,  H02M7/5152 ,  H02M7/757

摘要： In a current type GTO inverter, commutation surge voltage is inevitably generated from an inductive load whenever each GTO is turned off. The commutation surge voltage thus generated is once stored in a capacitor (C,) through a diode surge voltage rectifier (5) and then restored or regenerated to the DC sourceterminals (3A, 3B) of the GTO bridge-connected inverter (3) through a pair of other GOTs (G 7 , G.) turned on only when the capacitor voltage exceeds a predetermined value beyond the DC source voltage. After energy restoration, magnetic energy stored in a reactor (Lr,, Lr 2 ) is recharged in the same capacitor (C 1 ). The necessary elements are a capacitor (C 1 ), two GTOs (G 7 , G 8 ), two diodes (D 8 , D 9 ) and a DC reactor (7), thus simplifying the circuit configuration and reducing the cost. Additionally, since no vibration circuits to turn off thyristors for restoring the energy charged in the capacitor (C 1 ) to the GTO bridge-connected (3) inverter are required, the circuit operation is stable at higher frequency range, in particular.

公开(公告)号：EP0114276A1

公开(公告)日：1984-08-01

申请号：EP83112307.0

申请日：1983-12-07

申请人： BORG-WARNER CORPORATION

发明人： Studtmann, George Henry

IPC分类号： H02P1/52 ,  H02P7/62

CPC分类号： H02M5/45 ,  H02M7/5152 ,  H02P1/52 ,  H02P25/03

摘要： If the thyristor switching devices of a chopper controlled inverter are normally motor-commutated during running operation, a starting system is needed to initially rotate the motor fast enough to develop a sufficient back EMF in the motor for motor commutation to occur. This is achieved by regulating the operation of the chopper (16) to produce bus current pulses and by gating the thyristors (31-36) on in predetermined sets and in a prescribed sequence to current pulse energize the motor (41) to effect step-by-step rotation thereof, namely to crank or turn the motor one step at a time. After a set of conducting thyristors have supplied a bus current pulse to the motor, the reactive energy that builds up and becomes locked or stored in the inductances (such as the motor inductance), through which the motor current flows, must be dissipated in order to commutate the conducting thyristors off and reduce the motor current to zero before the next set of thyristors are turned on. The required energy dissipation is accomplished by a circuit path which is effective during the intervals between the bus current pulses from the chopper. A d-c voltage source, which may comprise a resistor (53) and a parallel connected capacitor (54), in the circuit path causes the reactive energy to be rapidly absorbed, thereby minimizing the decay time of the motor current to zero at the termination of each current pulse to permit faster turn on of the next set of thyristors and consequently faster starting. Once the motor has reached a speed sufficiently high to permit motor commutation to occur, an SCR is gated on to by-pass the d-c voltage source and provide a low loss free-wheeling path for reactive energy during running operation of the system.

公开(公告)号：EP0112763A1

公开(公告)日：1984-07-04

申请号：EP83402407.7

申请日：1983-12-13

申请人： THOMSON-CGR

发明人： Bouglé, Jean

IPC分类号： H02M3/315 ,  H02M7/515

CPC分类号： H05G1/20 ,  H02M3/3155 ,  H02M7/5152 ,  H02M7/5236 ,  H05G1/32

摘要： Selon l'invention, le système comporte un onduleur (12) du type à résonance, un pont redresseur (11) à diodes et une unique boucle de régulation (20, 21, 22, 24) commandant des moyens de commutation commandés (14), formant hacheur, interconnectés entre le pont redresseur et l'onduleur.
Application à la radiologie.

公开(公告)号：EP2849329A4

公开(公告)日：2017-03-08

申请号：EP12876328

申请日：2012-05-10

申请人： TOSHIBA MITSUBISHI-ELECTRIC IND SYSTEMS CORP

发明人： HIGASHI KOTARO

IPC分类号： H02M7/12

CPC分类号： H02M7/46 ,  H02M7/487 ,  H02M7/5152

摘要： When switching control signals of self-excited semiconductor devices (G1, G2) from OFF-control to ON-control, a control circuit controls the self-excited semiconductor device (G1) to be ON after a lapse of a turn-ON time (2 × ”t) from when a control voltage is applied to the self-excited semiconductor device (G2). When switching the control signals of the self-excited semiconductor devices (G1, G2) from ON-control to OFF-control, the control circuit controls the control signal of the self-excited semiconductor device (G2) to be OFF after a lapse of a turn-OFF time (2 × ”t) from when the control voltage is applied to the self-excited semiconductor device (G1).

摘要翻译： 在将自激式半导体器件（G1，G2）的控制信号从截止控制切换为导通控制时，控制电路在经过导通时间后控制自激式半导体器件（G1） 从施加控制电压到自激式半导体器件（G2）时的时间（2×t）。 在将自激式半导体装置（G1，G2）的控制信号从接通控制切换为断开控制时，控制电路在自激式半导体装置（G1）的控制信号经过 从控制电压施加到自激式半导体器件（G1）时起的关断时间（2דt）。

公开(公告)号：EP2843823A1

公开(公告)日：2015-03-04

申请号：EP14181541.5

申请日：2014-08-20

申请人： GE Energy Power Conversion Technology Limited

发明人： Zhang, Di ,  Garces, Luis Jose ,  Rockhill, Andrew Allen ,  Lai, Rixin

IPC分类号： H02M7/487 ,  H02M7/515 ,  H02M1/00 ,  H02M7/757

CPC分类号： H02M7/537 ,  H02M7/487 ,  H02M7/5152 ,  H02M7/7575 ,  H02M2001/0003 ,  H02M2007/4835 ,  Y02E60/60

摘要： A power converter includes at least one leg (200) including a first string (202) that includes controllable semiconductor switches (S1-S4), a first connecting node (210), and a second connecting node (212) and that is operatively coupled across a first bus (206) and a second bus (208). A second string (204) is operatively coupled to the first string (202) via the first connecting node (210) and the second connecting node (212). The second string (204) includes a plurality of switching modules (234) wherein each of the plurality of switching modules (234) includes a plurality of fully controllable semiconductor switches (238) and at least one energy storage device (236). The power converter includes a system controller to control activation of the controllable semiconductor switches (S1-S4) and switching modules (234) such that a controlled electrical variable is maintained at a first predetermined reference voltage value and the average internal stored energy of the energy storage devices (236) is maintained at a second predetermined reference value.

摘要翻译： 一种功率变换器，包括至少一个支腿（200）包括（202）没有包括可控半导体开关（S1-S4），第一连接节点（210），和第二连接点（212）和可操作地耦接的第一串 跨第一总线（206）和第二总线（208）。 的第二串（204）被可操作地耦合到经由第一连接节点（210）和所述第二连接节点（212）的第一串（202）。 第二串（204）包括开关模块（234）worin每个开关模块的多个的多个（234）包括完全可控的半导体开关（238）和至少一个能量存储装置（236）的复数。 功率转换器包括一个系统控制器，用于控制可控半导体开关（S1-S4）的激活和切换模块（234）检测并控制的电变量被保持在第一预定参考电压值和能量的平均内部存储的能量 存储设备（236）保持在第二预定的参考值。

公开(公告)号：EP2755317A1

公开(公告)日：2014-07-16

申请号：EP13275006.8

申请日：2013-01-11

申请人： Alstom Technology Ltd

发明人： Dyke, Kevin J. ,  Trainer, David Reginald ,  Oates, Colin

IPC分类号： H02M7/757 ,  H02J3/36 ,  H02M7/483

CPC分类号： H02M7/757 ,  H02J3/36 ,  H02J2003/365 ,  H02M7/5152 ,  H02M7/7575 ,  H02M7/797 ,  H02M2001/0048 ,  H02M2007/4835 ,  Y02B70/1491 ,  Y02E60/60

摘要： A voltage source converter (30) comprises:
at least two converter limbs (36), each converter limb (36) extending between first and second DC terminals (32,34) and having first and second limb portions (38,40) separated by an AC terminal (42), the first and second DC terminals (32,34) being connectable to a DC electrical network (46) and each AC terminal (42) being connectable to a AC electrical network (48), each limb portion (38,40) including at least one switching element (50);
at least one chain-link converter (52), the or each chain-link converter (52) including a plurality of series-connected modules, each module including at least one switching element and at least one energy storage device, the or each switching element and the or each energy storage device of each module combining to selectively provide a voltage source, the or each chain-link converter (52) forming a branch to interconnect two of the AC terminals (42), each limb portion (38,40) of each converter limb (36) being switchable to switch the or each corresponding chain-link converter (52) into and out of circuit with that limb portion (38,40) and thereby switch the or each corresponding chain-link converter (52) into and out of circuit with the respective DC terminal (32,34), the or each chain-link converter (52) being switchable to control the configuration of an AC voltage at each corresponding AC terminal (42); and
a control unit (54), wherein the control unit (54) coordinates the switching of the limb portions (38,40) and the or each chain-link converter (52) to cause transfer of real power between the AC and DC electrical networks (48,46).

摘要翻译： 电压源转换器（30）包括：至少两个转换器分支（36），每个转换器分支（36）在第一和第二直流端子（32,34）之间延伸并且具有第一和第二分支部分（38,40） AC端子（42），第一和第二DC端子（32,34）可连接到DC电网（46），并且每个AC端子（42）可连接到AC电网（48），每个分支部分 38,40），包括至少一个开关元件（50）; 至少一个链条转换器（52），所述链路转换器（或每个链接转换器）包括多个串联连接的模块，每个模块包括至少一个开关元件和至少一个能量存储装置，所述或每个开关 元件和每个模块的或每个能量存储装置组合以选择性地提供电压源，所述链路转换器（或每个链接转换器）形成分支以互连两个AC端子（42），每个分支部分（38,40 每个转换器分支（36）的开关可切换以使该或每个相应的链式转换器（52）与该肢体部分（38,40）进出电路，从而切换或相应的链式转换器（52） ）与相应的直流端子（32,34）进入和断开，所述或每个链节转换器（52）可切换以控制每个对应的AC端子（42）处的AC电压的配置; 以及控制单元（54），其中所述控制单元（54）协调所述肢体部分（38,40）和所述链节转换器（52）的切换，以使所述AC和DC电气之间的有功功率传递 网络（48,46）。

公开(公告)号：EP0253432B1

公开(公告)日：1992-01-22

申请号：EP87201257.0

申请日：1987-07-02

申请人： HOLLANDSE SIGNAALAPPARATEN B.V.

发明人： Buikema, Wolter

IPC分类号： H02M3/315 ,  H02M7/515

CPC分类号： H02M3/3155 ,  H02M7/5152