公开(公告)号：US20170302189A1

公开(公告)日：2017-10-19

申请号：US15429818

申请日：2017-02-10

Applicant: GE Energy Power Conversion Technology Ltd

Inventor： Roland JAKOB ,  Martin GESKE ,  Kowalsky JENS ,  Josef LUTZ

IPC: H02M5/293 ,  H02M1/08 ,  H02J3/36 ,  H02J3/38

CPC classification number: H02M5/293 ,  H02H7/1213 ,  H02J3/36 ,  H02J3/386 ,  H02M1/08 ,  H02M1/088 ,  H02M1/32 ,  H02M2005/2932 ,  H03K17/06 ,  H03K17/127 ,  H03K2017/066

Abstract: A device (2) for the on-demand commutation of an electrical current from a first line branch (14, 3; 36) to another, second line branch (4; 41; 71) is created, which has a number of power semiconductor switching elements (7; 47; 53), which are arranged in series and/or parallel to one another in the second line branch (4; 41; 71), and a control unit (18; 51) for controlling the number of power semiconductor switching elements (7; 47; 53). The control unit (18; 51) is adapted to apply to each of the number of power semiconductor switching elements (7; 47; 53) an increased control voltage (VGE) whose level is above the maximum permissible control voltage specified for continuous operation, in order to switch on or maintain the conduction of the number of power semiconductor switching elements and to cause an increased current flow through it, whose current rating is at least double the nominal operating current. The control unit (18; 51) is further adapted to switch off the number of power semiconductor switching elements after a respectively provided short switch-on duration by switching off the control voltage (VGE) again while they conduct an increased current flow. The device (2) can thus be designed for a higher power in operation, or, at a given operating power, the semiconductor area and size of the device (2) can be reduced.

公开(公告)号：US20160261180A1

公开(公告)日：2016-09-08

申请号：US15060645

申请日：2016-03-04

Applicant: GE Energy Power Conversion Technology Ltd

Inventor： Thomas BRUECKNER ,  Roland JAKOB

IPC: H02M1/32 ,  H02M7/537

CPC classification number: H02M1/32 ,  H02M1/088 ,  H02M7/537 ,  H02M2001/325 ,  H03K17/08104 ,  H03K17/08116 ,  H03K17/08142 ,  H03K17/08148 ,  H03K17/0822 ,  H03K17/0828

Abstract: A switch module includes a collector connection, an emitter connection, and a gate connection. The switch module includes a plurality of parallel connected switching elements, e.g., insulated-gate bipolar transistors, each having a collector electrode electrically connected to the collector connection, an emitter electrode electrically connected to the emitter connection, and a gate electrode electrically connected to the gate connection. A fault protection device is operatively electrically connected between the gate connection and the switching elements and comprises passive electrical components which are selected such that in the event of a fault in at least one of the plurality of switching elements, a gate-emitter voltage is provided to the gate electrodes of non-faulty switching elements in a passive manner.

Abstract translation: 开关模块包括收集器连接，发射器连接和门连接。 开关模块包括多个并联的开关元件，例如绝缘栅双极晶体管，每个具有与集电极连接电连接的集电极，与发射极连接电连接的发射极，以及电连接到 门连接。 故障保护装置可操作地电连接在栅极连接和开关元件之间并且包括被动电气部件，其被选择为使得在多个开关元件中的至少一个开关元件中存在故障的情况下，提供栅极 - 发射极电压 以无源方式连接到非故障开关元件的栅电极。

公开(公告)号：US20160365787A1

公开(公告)日：2016-12-15

申请号：US15182746

申请日：2016-06-15

Applicant: GE Energy Power Conversion Technology Ltd

Inventor： Martin GESKE ,  Joerg JANNING ,  Thomas BRUECKNER ,  Roland JAKOB

IPC: H02M1/32 ,  H02H9/04 ,  H02H7/12 ,  H02M7/04 ,  H02M7/44

CPC classification number: H02M1/32 ,  H01T1/14 ,  H01T2/02 ,  H01T15/00 ,  H02H7/12 ,  H02H9/041 ,  H02M7/04 ,  H02M7/44 ,  H02M7/483 ,  H02M2001/325 ,  H02M2007/4835

Abstract: A short-circuit device and a protection method for a submodule for a power converter are disclosed. The submodule includes a bridge circuit having at least one power semiconductor branch extending between a first and a second DC voltage node and at least one controllable power semiconductor switch disposed therein to which a freewheeling diode is connected in anti-parallel, and a capacitor connected in parallel to the bridge circuit. The short-circuit device has at least one selected of the freewheeling diodes anti-parallel to the power semiconductor switches of the bridge circuit, wherein the at least one selected freewheeling diode is manufactured in press pack design and rated such that, when a fault occurs in the submodule, the at least one selected freewheeling diode breaks down due to the fault conditions and provides a durable, stable, low-impedance short circuit path between a first and a second AC voltage connection of the submodule.

Abstract translation: 公开了用于功率转换器的子模块的短路装置和保护方法。 子模块包括桥接电路，其具有在第一和第二直流电压节点之间延伸的至少一个功率半导体分支和设置在其中的至少一个可控功率半导体开关，续流二极管以反并联的方式连接， 平行于桥接电路。 所述短路装置具有与所述桥式电路的功率半导体开关反平行的至少一个选择的续流二极管，其中，所述至少一个选定的续流二极管按照印刷机组设计制造，并且被评定为当故障发生时 在子模块中，至少一个选择的续流二极管由于故障条件而分解，并且在子模块的第一和第二AC电压连接之间提供持久，稳定的低阻抗短路路径。