公开(公告)号：EP2590310A1

公开(公告)日：2013-05-08

申请号：EP12176840.2

申请日：2012-07-18

申请人： Alstom Technology Ltd

发明人： Soeiro, Thiago Batista ,  Kolar, Johann Walter ,  Ranstad, Per ,  Linner, Jörgen

IPC分类号： H02M7/217

CPC分类号： H02M7/2176 ,  H02M1/4225 ,  H02M7/2173 ,  H02M2001/4283 ,  Y02B70/126

摘要： A hybrid rectifier (14a) comprises a line-commutated diode rectifier (11) with a boost stage (L1, L2, D1, D2, S1) in series and a controlled rectifier (15, 16) working in parallel thereto connected to a 3-phase AC input (17) and a DC output (18).
The controlled rectifier is choosen as a unidirectional 2-level "delta-switch" rectifier (15) or a 2-level "T-type" rectifier (16) as illustrated in figures 4 and 5 .

摘要翻译： 混合整流器（14a）包括具有串联的升压级（L1，L2，D1，D2，S1）的线路整流二极管整流器（11），并且与其并联连接的可控整流器（15,16） 相交流输入（17）和直流输出（18）。 可控整流器选择为图4和图5所示的单向2电平“Δ开关”整流器（15）或2电平“T型”整流器（16）。

公开(公告)号：EP2590312A1

公开(公告)日：2013-05-08

申请号：EP11187801.3

申请日：2011-11-04

申请人： Alstom Technology Ltd

发明人： Soeiro, Thiago Batista ,  Kolar, Johann Walter ,  Ranstad, Per ,  Linner, Jörgen

IPC分类号： H02M7/487

CPC分类号： H02M7/537 ,  H02M7/487 ,  H02M2001/0054 ,  Y02B70/1491

摘要： A Voltage Source Converter (VSC) (10) with Neutral-Point-Clamped (NPC) topology with one or more phases, comprises:
- an intermediate DC circuit (11) having at least a first and a second capacitance (C1, C2) connected in series between a positive terminal (P) and a negative terminal (N), providing a central tap terminal (0) between both capacitances (C1, C2), and
- at least one sub-circuit (12) for generating one phase of an alternating voltage, each sub-circuit (12') comprising:
o an AC terminal (13) for supplying a pulsed voltage;
o a circuit arrangement (T1,..,T4; D 1 ,..,D 6 ) of the form of a conventional neutral-point-clamped converter (NPC), with a first series connection of at least two switches (T 1 , T 2 ) between said AC terminal (13) and said positive terminal (P), a second series connection of at least two switches (T 3 , T 4 ) between said AC terminal (13) said negative terminal (N), and switchable connections (D 5 , D 6 ) from said central tap terminal (0) to the centers of both two-switch series connections (T 1 , T 2 ; T 3 , T 4 ;); and
○ additional first and second auxiliary switches (T Ax1 , T Ax2 ) being
assigned to said two-switch series connections (T 1 , T 2 ; T 3 , T 4 ).


Such a configuration has not only a higher efficiency, but can also overcome loss distribution issues of the typical 3-level systems, so that a remarkable increase of the converter output power and/or system reliability can be accomplished.

摘要翻译： 具有一个或多个相位的具有中性点钳位（NPC）拓扑的电压源转换器（VSC）（10）包括： - 至少具有第一和第二电容（C1，C2）的中间DC电路（11） 串联连接在正极端子（P）和负极端子（N）之间，在两个电容（C1，C2）之间提供中心抽头端子（0），以及至少一个子电路（12），用于产生一相 每个子电路（12'）包括：用于提供脉冲电压的AC端子（13）; 传统的中性点钳位转换器（NPC）形式的电路布置（T1，...，T4; D1，...，D6），具有至少两个开关（T 1， 所述AC端子（13）和所述正极端子（P）之间的至少两个开关（T 3，T 4）的第二串联连接在所述AC端子（13），所述负极端子（N）之间， 连接（D 5，D 6）从所述中央抽头端子（0）到两个开关串联连接（T 1，T 2; T 3，T 4;）的中心; 和分配给所述双开关串联连接（T 1，T 2; T 3，T 4）的附加第一和第二辅助开关（T Ax1，T Ax2）。 这种配置不仅具有更高的效率，而且还可以克服典型3级系统的损耗分配问题，从而可以实现转换器输出功率和/或系统可靠性的显着提高。

公开(公告)号：EP2528222B1

公开(公告)日：2015-03-11

申请号：EP11167795.1

申请日：2011-05-27

申请人： ALSTOM Technology Ltd

发明人： Soeiro, Thiago Batista ,  Kolar, Johann W. ,  Ranstad, Per ,  Linner, Jörgen

IPC分类号： H02M7/487 ,  H02J3/18

CPC分类号： H02M7/487 ,  H02J3/1857 ,  Y02E40/26

公开(公告)号：EP2528222A1

公开(公告)日：2012-11-28

申请号：EP11167795.1

申请日：2011-05-27

申请人： Alstom Technology Ltd

发明人： Soeiro, Thiago Batista ,  Kolar, Johann W. ,  Ranstad, Per ,  Linner, Jörgen

IPC分类号： H02M7/487 ,  H02J3/18

CPC分类号： H02M7/487 ,  H02J3/1857 ,  Y02E40/26

摘要： Proposed is a method for the determination of a control scheme for a neutral point clamped (NPC) voltage source converter (VSC) with at least 3 levels, in particular as a shunt active power filter, with a topology of three bridge legs (21-23) between each of three phases (R,S,T) of a grid (11) and a neutral point (24), each leg (21-23) comprising at least four active switches (T1-T4), wherein there is provided a clamping carrier modulator (1) synchronized with the grid (1) for the control of no-switching intervals, said method comprising at least the following steps:
analyzing the waveform of the grid and/or a load voltage (ILR) and determination of windows (3) defining an allowed period for no switching of the corresponding bridge leg;
operating or simulating the operation of the voltage source converter with different clamping carrier modulator frequencies, and then analyzing the balance in the operating junction temperatures and/or power losses across the active switches and also analyzing the total losses of the voltage source converter; comparing the balance and the total losses of different clamping carrier modulator frequencies and selecting either the clamping carrier modulator frequency according to showing, as primary criterion, the better balance and, as secondary criterion, the lower total losses; operating or simulating the operation of the voltage source converter with the selected clamping carrier modulator frequency, while iteratively changing at least one of the following operating parameters of the voltage source converter: switching frequency, DC-link voltage reference, duty cycle of clamping carrier modulator, phase shift of the clamping carrier modulator relative to the grid, and optimizing the balance in the operating junction temperatures and/or power losses across the active switches and the total losses of the voltage source converter as a function of the adjustment of these operating parameters until reaching optimum operation parameters for the control scheme.

摘要翻译： 提出了一种用于对中性点的控制方案的测定方法钳位（NPC）电压源转换器（VSC）具有至少三个水平（特别是作为并联有源滤波器，具有三个桥臂的拓扑21- 23）每一个网格（11）和中性点（24）的三相（R，S，T）之间，每个腿（21-23），其包括至少四个有源开关（T1-T4），有worin 提供与电网同步的夹紧载波调制器（1）（1）对于没有切换间隔的控制，所述方法包括至少以下步骤：分析所述网格和/或负载电压（ILR）和判定的波形 窗口（3）定义允许用于没有桥相应支柱的切换周期; 操作或模拟运算与不同的夹紧载波调制器的频率的电压源转换器，然后分析在整个有源开关的工作结温度和/或功率损耗平衡等分析该电压源转换器的总损失; 比较平衡和不同的夹紧载波调制器的频率的总损耗和选择所述夹紧载波频率调制器gemäß到表示，作为主要准则，更好的平衡和作为次要标准中，较低的总损失; 操作或与所选择的夹紧载波调制器频率模拟操作的电压源转换器，同时反复地改变所述电压源转换器的以下操作参数中的至少一个：开关频率，直流母线电压参考，夹紧载波调制器的占空因数 ，夹紧支架相对于网格的调制器，以及优化在工作结温度和/或横跨有源开关功率损失和电压源转换器的总损失的合成操作参数的调整的功能的平衡的相位偏移 直到用于控制方案达到最佳操作参数。

公开(公告)号：EP2398139A1

公开(公告)日：2011-12-21

申请号：EP10166564.4

申请日：2010-06-18

申请人： Alstom Technology Ltd

发明人： Ranstad, Per ,  Linner, Jörgen ,  Biela, Jürgen ,  Soeiro, Thiago Batista

IPC分类号： H02M7/493

CPC分类号： H03K3/36 ,  H02M7/493

摘要： The disclosure relates to a method for the scheduling and/or the operation of a system of at least two power supplies (11) providing DC pulses to a consumer (5), typically an electrostatic precipitator, wherein the power supplies (11) are energised by a common feeding (1). According to the proposed method one power supply (11) is defined to be the reference power supply, and the initial pulses of each further power supply (11) are shifted by controlled delays (δ Pri) with respect to the pulses of the reference power supply so as to fill the gaps between the pulses of the reference power supply by the pulses of the further power supplies (11).

摘要翻译： 本公开涉及一种用于向消费者（5）（通常为静电除尘器）提供DC脉冲的至少两个电源（11）的系统的调度和/或操作的方法，其中电源（11）被通电 通过共同喂养（1）。 根据所提出的方法，一个电源（11）被定义为参考电源，并且每个另外的电源（11）的初始脉冲相对于参考功率的脉冲（“Pri”）移位 供应，以便通过另外的电源（11）的脉冲来填充参考电源的脉冲之间的间隙。

公开(公告)号：EP2398124A1

公开(公告)日：2011-12-21

申请号：EP10166572.7

申请日：2010-06-18

申请人： Alstom Technology Ltd

发明人： Kolar, Johann Walter ,  Soeiro, Thiago Batista ,  Biela, Jürgen ,  Ranstadt, Per ,  Linner, Jörgen

IPC分类号： H02J3/01 ,  H02M1/12

CPC分类号： H02M1/12 ,  H02J3/01 ,  Y02E40/40

摘要： Disclosed is a method for the improvement of the line quality in a system, in which a common feeding (1), via at least one distribution transformer (3), feeds at least two non-linear loads (11) drawing non-sinusoidal currents from the common feeding (1), wherein between the common feeding (1) and the distribution transformer (3) there is at least one primary side transformer line (2) and between the at least one distribution transformer (3) and the loads (11) there is at least one lower voltage secondary side transformer line (22), wherein at least one active filter (24) attached to at least one lower voltage secondary side transformer line (22) is used for the attenuation or elimination of higher order harmonics experienced by the common feeding (1). Furthermore a high power distribution system for use of such a method is disclosed, in particular for the operation of an electrostatic precipitator.

摘要翻译： 公开了一种用于改善系统中的线路质量的方法，其中通过至少一个配电变压器（3）的公共馈电（1）馈送至少两个非正弦电流的非线性负载（11） 从公共馈电（1）中，其中在公共馈电（1）和配电变压器（3）之间存在至少一个初级侧变压器线（2），并且在至少一个配电变压器（3）和负载（ 11）存在至少一个较低电压次级侧变压器线（22），其中附接至少一个较低电压次级侧变压器线（22）的至少一个有源滤波器（24）用于衰减或消除较高阶 共同喂养经历的谐波（1）。 此外，公开了一种用于这种方法的高功率分配系统，特别是用于静电除尘器的操作。