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1. 发明申请

WO2016120479A1 VOLTAGE SOURCE CONVERTER 审中-公开
标题翻译：电压源转换器
公开(公告)号：WO2016120479A1
公开(公告)日：2016-08-04
申请号：PCT/EP2016/051998
申请日：2016-01-29
申请人： GENERAL ELECTRIC TECHNOLOGY GMBH
发明人： OATES, Colin, Donald, Murray , TRAINER, David, Reginald , JASIM, Omar, Fadhel , CHIVITE-ZABALZA, Francisco, Javier , DYKE, Kevin, James , MURENO MUÑOZ, Francisco, Jose , WHITEHOUSE, Robert, Stephen
IPC分类号： H02M7/217 , H02M7/487
CPC分类号： H02M7/217 , H02M7/487 , H02M2007/4835
摘要： A voltage source converter (30) comprises: first and second DC terminals (32,34) for connection to a DC network (40); a third terminal (36) for connection to ground or a voltage; and a plurality of AC terminals (38), each AC terminal (38) for connection to a respective phase of a multi-phase AC network (42). The voltage source converter (30) includes: a plurality of multi-level switching cells (44), each multi-level switching cell (44) including an AC connecting point and first, second and third further connecting points, the third terminal (36) connected to each third further connecting point of each multi-level switching cell (44), the AC connecting point of each multi-level switching cell (44) being connected to a respective one of the plurality of AC terminals (38), each multi-level switching cell (44) being arranged to permit selectively switching of the corresponding AC terminal (38) into circuit with each of the corresponding further connecting points separately; a switching controller (46) programmed to control the switching of each multi-level switching cell (44) to selectively switch the corresponding AC terminal (38) into circuit with each of the corresponding further connecting points separately; first and second waveform synthesizers (48,50), the first waveform synthesizer (48) connected between the first DC terminal (32) and each first further connecting point of each multi-level switching cell (44), the second waveform synthesizer (50) connected between the second DC terminal (34) and each second further connecting point of each multi-level switching cell (44); and a synthesizer controller (64) programmed to selectively operate each waveform synthesizer (48,50) to synthesize a voltage waveform to control the configuration of the AC voltage at the AC terminal (38) that is switched into circuit with the corresponding further connecting point.
摘要翻译：电压源转换器（30）包括：用于连接到DC网络（40）的第一和第二DC端子（32,34）。用于连接到地或电压的第三端子（36）; 以及多个AC端子（38），用于连接到多相AC网络（42）的相位的每个AC端子（38）。电压源转换器（30）包括：多个多电平开关单元（44），每个多电平开关单元（44）包括AC连接点和第一，第二和第三另外的连接点，第三端子（36））连接到每个多电平开关单元（44）的每个第三另外的连接点，每个多电平开关单元（44）的AC连接点连接到多个AC端子（38）中的相应一个，每个多级开关单元（44）被布置成允许相应的AC端子（38）选择性地分别转换成与每个相应的另外的连接点分开的电路; 切换控制器（46），其被编程为控制每个多电平开关单元（44）的切换，以分别将每个相应的另外的连接点选择性地将对应的AC端子（38）切换到电路中; 第一和第二波形合成器（48,50），连接在第一DC端子（32）和每个多电平开关单元（44）的每个第一另外的连接点之间的第一波形合成器（48），第二波形合成器）连接在所述第二DC端子（34）和每个多电平开关单元（44）的每个第二另外的连接点之间; 以及合成器控制器（64），其被编程为选择性地操作每个波形合成器（48,50）以合成电压波形，以控制交流端子（38）处的交流电压的配置，该交流端子（38）被切换成具有相应的另外的连接点。

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