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公开(公告)号：US10243357B2
公开(公告)日：2019-03-26
申请号：US15105746
申请日：2013-12-20
发明人： Hans-Guenter Eckel , Dominik Ergin , Herbert Gambach , Hans-Joachim Knaak , Andreas Philipp , Hubert Schierling
摘要： An apparatus switches a direct current in a high-voltage line. The apparatus contains a multiplicity of switching units, which are arranged so as to form a series circuit in the high-voltage line. Each switching unit in this case contains a switching element and a surge arrester arranged in a parallel circuit with the switching element, the threshold voltage of the surge arrester being higher than a rated voltage of the switching element. A sum of the rated voltages of the switching elements corresponds at least to an operating voltage of the high-voltage line. The switching elements are mechanical switches, and each mechanical switch contains a contact arrangement having two disconnectable contact pieces and is configured to build up an arcing voltage on disconnection of the contact pieces with a magnitude which is higher than the rated voltage of the mechanical switch.
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公开(公告)号：US09787173B2
公开(公告)日：2017-10-10
申请号：US15025309
申请日：2014-09-08
发明人： Hans-Guenter Eckel
CPC分类号： H02M1/32 , H02M7/483 , H02M7/797 , H02M2007/4835
摘要： A multilevel converter has a plurality of series-connected sub modules, which each have at least one first switch, one second switch and one capacitor. Current is output by way of the capacitor during discharging phases and current is received or charging the capacitor during charging phases. At least one of the sub modules has two part-modules that are galvanically connected to each other or are formed by two part-modules that are galvanically connected to each other. Each has a first switch, a second switch and a capacitor, and a first and a second part-module terminal. The galvanic connection between the two part-modules includes at least one inductive element.
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公开(公告)号：US10903757B2
公开(公告)日：2021-01-26
申请号：US16637838
申请日：2017-08-09
摘要： A power module for a converter, in particular for a multilevel converter. The power module includes a link circuit capacitor, two connection terminals, at least one half-bridge connected in parallel with the link circuit capacitor and having two semiconductor switches, and, for each half-bridge, a bypass diode connected in parallel with a first semiconductor switch of the half-bridge and a load-relief circuit group connected in parallel with the first semiconductor switch. The load-relief circuit group has a load-relief thyristor and a load-relief diode connected in series with the load-relief thyristor.
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4.发明申请MODULAR MULTIPLE CONVERTER COMPRISING REVERSE CONDUCTIVE POWER SEMICONDUCTOR SWITCHES 审中-公开包含反向传导功率半导体开关的模块化多变换器公开(公告)号：US20140362628A1
公开(公告)日：2014-12-11
申请号：US14008068
申请日：2012-03-14
发明人： Hans-Guenter Eckel
CPC分类号： H02M1/00 , H01L25/00 , H01L2924/0002 , H02M7/483 , H02M2007/4835 , H01L2924/00
摘要： A submodule for a modular multilevel converter has at least one unipolar energy storage device, first and second connection terminals and a power semiconductor circuit with power semiconductor switches that are driven with a control signal and freewheeling diodes connected in parallel with an assigned power semiconductor switch in the opposite sense. Depending on the driving of the power semiconductor switches, the voltage across the energy storage device(s) or else a zero voltage can be generated between the first and second connection terminals. The power semiconductor circuit forms a bridging branch between the potential points of the first and second connection terminals. Only the power semiconductor switches in the bridging branch are reverse conductive power semiconductor switches. The submodule has low on-state losses during normal operation and is also cost-effective.
摘要翻译： 用于模块化多电平转换器的子模块具有至少一个单极能量存储装置，第一和第二连接端子以及具有功率半导体开关的功率半导体电路，所述功率半导体开关由控制信号驱动并且与所分配的功率半导体开关并联连接的续流二极管 相反的意思。 根据功率半导体开关的驱动，可以在第一和第二连接端子之间产生能量存储装置两端的电压或零电压。 功率半导体电路在第一和第二连接端子的电位点之间形成桥接支路。 只有桥接支路中的功率半导体开关是反向导通功率半导体开关。 子模块在正常运行期间具有低导通状态损耗，并且性价比高。
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