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公开(公告)号：EP3063860A1
公开(公告)日：2016-09-07
申请号：EP14790564.0
申请日：2014-10-23
CPC分类号： H02M7/483 , H02J3/36 , H02J2003/365 , H02M1/12 , H02M1/15 , H02M2007/4835 , Y02E60/60
摘要： A voltage source converter 10 comprises first and second DC terminals 12,14 for connection to a DC electrical network 42 and at least one limb 16 connected between the first and second terminals. The limb includes a phase element 18 having a plurality of switching elements 54 and at least one AC terminal for connection to an AC electrical network 30.The switching elements are controllable to facilitate power conversion between the AC and DC electrical networks. The voltage source converter also includes a tertiary sub-converter 32, connected in series with the phase element in an electrical block, and controllable to act as a waveform synthesizer to modify a first DC voltage presented to a DC side of the phase element. A quaternary sub-converter 36 is connected in series with the tertiary sub-converter, and is controllable to act as a waveform synthesizer to modify a second DC voltage presented to the DC electrical network. An auxiliary sub-converter 38 is connected in parallel with the electrical block and connected to a common connection point between the tertiary and quaternary sub-converters to form a "T" arrangement. The auxiliary sub-converter is controllable to act as a waveform synthesizer to modify the first and second DC voltages.
摘要翻译： 一种电压源转换器（10），包括用于连接到DC电网（42）的第一和第二DC端子（12,14）以及连接在第一和第二端子（12,14）之间的至少一个支路（16）。 所述支路（16）包括具有多个开关元件（54）和用于连接到AC电网（30）的至少一个AC端子的相元件（18），所述多个开关元件（54）被配置为 可控制以促进AC和DC电网（30,42）之间的功率转换。 电压源转换器（10）还包括在电气块中与相元件（18）串联连接的第三级子转换器（32）。 三级子变换器（32）被配置为可控制的，以充当波形合成器以修改呈现给相位元件（18）的DC侧的第一DC电压。 四分之一子变换器（36）与三级子变换器（32）串联连接，四分之一子变换器（36）被配置为可控的以充当波形合成器以修改呈现给 DC电网（42）。 辅助变流器（38）与电气块并联连接并且连接到三级和四元子变流器（32,36）之间的公共连接点以形成“T”排列。 辅助子变换器（38）被配置为可控制的以充当波形合成器以修改第一和第二DC电压。
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公开(公告)号：EP2777127A1
公开(公告)日：2014-09-17
申请号：EP11779658.1
申请日：2011-11-07
IPC分类号： H02J3/36
摘要： There is a control circuit (30) comprising first and second DC terminals (32a, 32b) for connection to a DC network, the first and second DC terminals (32a, 32b) having a plurality of modules (34) and at least one energy conversion element (36) connected in series therebetween to define a current transmission path, the plurality of modules (34) defining a chain- link converter (44), each module (34) including at least one energy storage device (40), the or each energy storage device (40) being selectively removable from the current transmission path to cause a current waveform to flow from the DC network through the current transmission path and the or each energy conversion element (36) and thereby remove energy from the DC network, the or each energy storage device (36) being selectively removable from the current transmission path to modulate the current waveform to maintain a zero net change in energy level of the chain-link converter (44).
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公开(公告)号：EP2700101B1
公开(公告)日：2015-06-10
申请号：EP11716526.6
申请日：2011-04-21
CPC分类号： H01L25/117 , H01L23/40 , H01L23/62 , H01L2924/0002 , H01L2924/00
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公开(公告)号：EP2781013A1
公开(公告)日：2014-09-24
申请号：EP11784640.2
申请日：2011-11-15
IPC分类号： H02M7/49
CPC分类号： H02M7/72 , H02M7/49 , H02M2001/325 , H02M2007/4835
摘要： In the field of voltage source converters which provide high voltage direct current (HVDC) power transmission and reactive power compensation there is a need for an improved power electronic module which exhibits high efficiency, provides a safe failure mode, and is tolerant of faults. A power electronic module (30; 70), for use in a chain-link converter of a voltage source converter providing high voltage direct current power transmission and reactive power compensation, comprises a first set (32) of series-connected switching elements connected in parallel with an energy storage device (34). The first set (32) of series-connected switching elements includes a first latching switching element (38) and a first non-latching switching element (40).
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公开(公告)号：EP2740205A1
公开(公告)日：2014-06-11
申请号：EP11758423.5
申请日：2011-08-24
CPC分类号： H02M3/335 , H02M2007/4835
摘要： In the field of high voltage DC power transmission there is a need for a small, lightweight, inexpensive, and reliable means of connecting first and second high voltage DC power transmission networks. A DC to DC converter assembly (30; 130; 140; 150; 160; 170), for connecting first and second high voltage DC power transmission networks, comprises an inverter (32; 152; 172) which has first and second terminals (34, 36) which are connectable in use to a first high voltage DC power transmission network (16). The inverter (32; 152; 172) is defined by a modular multilevel converter (38) which includes a first inverter limb (40) that extends between the first and second terminals (34, 36) and has first and second inverter limb portions (50, 52) that are separated by a third terminal (54). Each inverter limb portion (50, 52) includes at least one rationalised module (68) which has first and second sets (70, 72) of series-connected current flow control elements (74) that are connected in parallel with at least one energy storage device (76). Each set of current flow control elements (74) includes an active switching element (90) to selectively direct current through the energy storage device (76) and a passive current check element (82) to limit current flow through the rationalised module (68) to a single direction. The current flow control elements (74) and the or each energy storage device (76) combine to selectively provide a voltage source to synthesise an AC voltage (V
AC ) at the third terminal (54). The DC to DC converter assembly (30; 130; 140; 150; 160; 170) also includes a rectifier (92; 142) that is electrically connected to the third terminal (54) of the inverter (32; 152) by a first link (98) and is connectable in use to a second high voltage DC power transmission network (18). The rectifier (92; 142) is configured to convert the AC voltage (V
AC ) conveyed by the first link (98) into a second DC voltage (V
2 ) for supply to the second high voltage DC power transmission network (18).-
公开(公告)号：EP2777127B1
公开(公告)日：2016-03-09
申请号：EP11779658.1
申请日：2011-11-07
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公开(公告)号：EP2781013B1
公开(公告)日：2016-01-13
申请号：EP11784640.2
申请日：2011-11-15
CPC分类号： H02M7/72 , H02M7/49 , H02M2001/325 , H02M2007/4835
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8.发明公开
公开(公告)号：EP2700101A1
公开(公告)日：2014-02-26
申请号：EP11716526.6
申请日：2011-04-21
IPC分类号： H01L25/11 , H01L23/62 , H01L23/40 , G08B13/186
CPC分类号： H01L25/117 , H01L23/40 , H01L23/62 , H01L2924/0002 , H01L2924/00
摘要： A clamping failure detector assembly (30; 50; 70) comprises a frangible electromagnetic radiation conduit (32) that extends between first and second portions (34, 36) of at least one thyristor clamped assembly (10). The detector assembly (30; 50; 70) also includes a an electromagnetic radiation source (31) that is arranged in communication with a first end of the frangible conduit (32) and an electromagnetic radiation detector (33) that is arranged in communication with a second end of the frangible conduit (32). The frangible conduit (32) ruptures on movement of the first and second portions (34, 36) of the or each thyristor clamped assembly (10) away from one another to interrupt the transmission of electromagnetic radiation from the electromagnetic radiation source (31) to the electromagnetic radiation detector. The electromagnetic radiation detector (33) indicates a clamping failure when the electromagnetic radiation transmitted from the electromagnetic radiation source (31) is interrupted.
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