公开(公告)号：US20150333677A1

公开(公告)日：2015-11-19

申请号：US14713911

申请日：2015-05-15

Applicant: Senvion SE

Inventor： Heinz-Hermann LETAS ,  Steffen PINGEL

IPC: H02P9/02 ,  F03D9/00

CPC classification number: H02P9/02 ,  F03D9/255 ,  F03D9/257 ,  H02H7/1216 ,  H02J3/12 ,  H02J3/1885 ,  H02J3/386 ,  H02M1/32 ,  H02M1/42 ,  H02M5/458 ,  H02M2001/0064 ,  H02M2001/325 ,  Y02B70/12 ,  Y02E10/72 ,  Y02E10/76 ,  Y02E10/763 ,  Y02E40/32

Abstract: A wind turbine comprises a wind rotor, a generator driven by the wind rotor, a converter, wherein the generator and the converter generate electrical energy output via a connecting line with an inductively acting line reactor to a grid, and an overvoltage protection device comprising a plurality of different active modules, which are designed in such a way that they each effect, in different ways, a reduction in the voltage at the output of the converter, a switching matrix, which connects and disconnects the different active modules, and a selector comprising an overvoltage classifier, which is designed to select a predetermined stage depending on the overvoltage and to actuate the switching matrix in such a way that successive ones of the active modules are disconnected, wherein the overvoltage classifier defines a plurality of overvoltage ranges by virtue of in each case the selector setting different switching groups.

Abstract translation: 风力涡轮机包括风力转子，由风力转子驱动的发电机，转换器，其中发电机和转换器通过与电感作用线路电抗器连接到电网的连接线路产生电能输出;以及过电压保护装置， 多个不同的有源模块被设计成使得它们各自以不同的方式影响转换器的输出处的电压的降低，连接和断开不同的有源模块的开关矩阵以及选择器 包括过电压分级器，其被设计为根据过电压选择预定级，并以使连续的有源模块断开的方式致动开关矩阵，其中过电压分级器由于以下原因定义了多个过电压范围 在每种情况下，选择器设置不同的开关组。