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1. 发明授权

US4689733A Method for reducing dynamic overvoltages in an alternating-current system to which a direct-current system is connected 失效
标题翻译：用于减少直流系统连接到的交流系统中的动态过电压的方法
公开(公告)号：US4689733A
公开(公告)日：1987-08-25
申请号：US878322
申请日：1986-06-25
申请人： Gerhard Guth , Walter Kuhn , Gerhard Linhofer , Kadry Sadek
发明人： Gerhard Guth , Walter Kuhn , Gerhard Linhofer , Kadry Sadek
IPC分类号： H02H7/122 , H02H7/26 , H02J1/00 , H02J3/36 , H02H7/00
CPC分类号： H02J3/36 , H02H7/268 , Y02E60/60
摘要： Where different 3-phase systems are connected to each other via two static converters having an intermediate direct-current circuit, the exchange of power via the intermediate direct-current circuit can be interrupted by a severe disturbance, for example by failure of a static-converter or by line or busbar faults causing a short-circuiting of one of the static converters. This interruption means a change in the balance of effective power and, associated with this, a shedding of reactive load for the other undisturbed 3-phase system. To reduce high dynamic overvoltages which can lead to plant components being endangered or to operational disturbances, the firing angle of the static converter remaining in operation is regulated with dependence on the alternating voltage of the alternating-current system connected to this static converter, in such a manner that the overvoltage is reduced. This is carried out by regulating the current. The firing angle can be adjusted simultaneously with the short circuiting of the intermediate direct-current circuit by means of a short circuit device.
摘要翻译：在通过具有中间直流电路的两个静态转换器将不同的三相系统彼此连接的情况下，经由中间直流电路的电力交换可能被严重的干扰中断，例如静态 - 转换器或线路或母线故障导致其中一个静态转换器短路。这种中断意味着有效功率的平衡发生变化，与此相反，其他未受干扰的三相系统的无功负载脱落。为了减少高动态过电压，可导致工厂部件受到危及或受到操作干扰，剩余运行中的静态转换器的触发角度依赖于连接到该静态转换器的交流系统的交流电压进行调节过电压降低的方式。这是通过调节电流进行的。可以通过短路装置与中间直流电路的短路同时调节触发角。

2. 发明授权

US4581573A Static converter transformer with harmonic filter 失效
标题翻译：具有谐波滤波器的静态转换变压器
公开(公告)号：US4581573A
公开(公告)日：1986-04-08
申请号：US589180
申请日：1984-03-13
申请人： Josip Dobsa , Gerhard Linhofer
发明人： Josip Dobsa , Gerhard Linhofer
IPC分类号： H01F27/38 , H01F27/42
CPC分类号： H01F27/38
摘要： A better filtering effect for disturbing harmonic currents in a high-tension direct current transmission installation is described. A balancing winding is provided between a primary winding as an outer winding and a secondary winding in a 3-winding transformer with a transformer core. The distances between the balancing winding and the primary winding and the secondary winding, respectively, are selected such that the equivalent reactance of this balancing winding is equal to or less than zero. A second balancing winding can be provided as the inner winding in a series with the first balancing winding. In the case of a 4-winding transformer, two winding arrangements are provided with two parallel-connected primary windings as the outer windings, with a separate secondary winding for each and a balancing winding for each between the primary and secondary windings, the two balancing windings being connected in series.
摘要翻译：描述了在高压直流传输装置中干扰谐波电流的更好的滤波效果。在作为外绕组的初级绕组和具有变压器芯的3绕组变压器中的次级绕组之间提供平衡绕组。选择平衡绕组与初级绕组和次级绕组之间的距离，使得该平衡绕组的等效电抗等于或小于零。可以将第二平衡绕组作为与第一平衡绕组串联的内部绕组提供。在4绕组变压器的情况下，两个绕组装置设有两个并联连接的初级绕组作为外绕组，每个绕组分别有一个次级绕组和一个平衡绕组，每个绕组在初级绕组和次级绕组之间，两个平衡绕组绕组串联连接。

3. 发明授权

US06333863B1 Method to compensate for unbalanced loads in polyphase systems 失效
标题翻译：补偿多相系统中不平衡载荷的方法
公开(公告)号：US06333863B1
公开(公告)日：2001-12-25
申请号：US09664092
申请日：2000-09-19
申请人： Claes Hillberg , Gerhard Linhofer
发明人： Claes Hillberg , Gerhard Linhofer
IPC分类号： H02M545
CPC分类号： H02J3/26 , Y02E40/50
摘要： The method according to the invention is for compensation currents to be produced which have arbitrary phases and/or arbitrary amplitudes. To this end, a compensation unit (5) is proposed which is connected to the polyphase system via a transformer unit (4). The compensation unit (5) in this case comprises at least a switching unit (6) and an energy storage unit (7), which is connected to the transformer unit (4) via the switching unit (6).
摘要翻译：根据本发明的方法是用于产生具有任意相位和/或任意幅度的补偿电流。为此，提出了经由变压器单元（4）连接到多相系统的补偿单元（5）。在这种情况下，补偿单元（5）至少包括通过切换单元（6）连接到变压器单元（4）的切换单元（6）和能量存储单元（7）。

4. 发明授权

US5999427A Invertor with suppression of interference currents 失效
标题翻译：具有抑制干扰电流的反相器
公开(公告)号：US5999427A
公开(公告)日：1999-12-07
申请号：US116936
申请日：1998-07-17
申请人： Peter Dahler , Osvin Gaupp , Gerhard Linhofer , Jean-Fran.cedilla.ois Ravot
发明人： Peter Dahler , Osvin Gaupp , Gerhard Linhofer , Jean-Fran.cedilla.ois Ravot
IPC分类号： H02M7/48 , H02M7/49 , H02M7/527 , H02M7/00
CPC分类号： H02M7/49
摘要： An invertor (15) includes a plurality of invertor bridges (B1, . . . ,B8), which are connected in parallel and whose output voltages are summed via a transformer (19). The transformer (19) has a number of primary windings (P1, . . . ,P8) and associated secondary windings (S1, . . . ,S8) which corresponds to the number of invertor bridges (B1, . . . ,B8). Each invertor bridge (B1, . . . ,B8) is connected on the output side to one of the primary windings (P1, . . . ,P8), and the secondary windings (S1, . . . ,S8) are connected in series to sum the output voltages. The transformer (19) has a center tap (23) which is grounded via a ground connection (24). Tertiary windings (T1, . . . ,T8) are assigned to the primary windings (P1, . . . ,P8) and to the secondary windings (S1, . . . ,S8). The tertiary windings (T1, . . . ,T8) are also connected to a common-mode filter (51). The common-mode filter (51) is tuned to common mode interference voltages associated with in-phase or common-mode interference currents flowing via the ground connection (24). Thus, a circuit is formed that attenuates or suppresses the in-phase or common-mode interference currents and the associated interference voltages.
摘要翻译：逆变器（15）包括并联连接的多个逆变桥（B1 ...，B8），其输出电压通过变压器（19）相加。变压器（19）具有多个对应于逆变桥（B1，...，B8）的数量的初级绕组（P1，...，P8）和相关联的次级绕组（S1，...，S8）。每个逆变桥（B1，...，B8）在输出侧连接到一个初级绕组（P1，...，P8），次级绕组（S1，...，S8）连接系列对输出电压求和。变压器（19）具有通过接地连接（24）接地的中心抽头（23）。三次绕组（T1，...，T8）分配给初级绕组（P1，...，P8）和次级绕组（S1，...，S8）。三级绕组（T1，...，T8）也连接到共模滤波器（51）。共模滤波器（51）被调谐到与通过接地连接（24）流动的同相或共模干扰电流相关联的共模干扰电压。因此，形成了衰减或抑制同相或共模干扰电流和相关联的干扰电压的电路。

5. 发明授权

US06169676A Invertor 失效
标题翻译：逆变器
公开(公告)号：US06169676A
公开(公告)日：2001-01-02
申请号：US09137539
申请日：1998-08-21
申请人： Peter D{umlaut over (a)}hler , Osvin Gaupp , Gerhard Linhofer , Jean-François Ravot
发明人： Peter D{umlaut over (a)}hler , Osvin Gaupp , Gerhard Linhofer , Jean-François Ravot
IPC分类号： H02M700
CPC分类号： H02M7/49
摘要： An invertor having a plurality of invertor bridges which operate in parallel and whose output voltages are summed. The invertor bridges are driven with pulse duration modulation according to an auxiliary control voltage. The auxiliary control voltages of the individual invertor bridges have a constant phase difference between one another. The output voltages of the bridges are summed by a center tap which is grounded by a ground connection. Effective suppression of the common-mode current distortion is achieved by having the switch arranged in the ground connection.
摘要翻译：具有多个并联运行并且其输出电压相加的逆变桥的逆变器。根据辅助控制电压，脉冲宽度调制驱动逆变器桥。各个逆变桥的辅助控制电压彼此之间具有恒定的相位差。桥的输出电压由接地连接的中心抽头相加。通过将开关布置在接地连接中来实现对共模电流失真的有效抑制。

6. 发明授权

US4661763A Phase shifter 失效
标题翻译：移相器
公开(公告)号：US4661763A
公开(公告)日：1987-04-28
申请号：US698845
申请日：1985-02-06
申请人： Niyazi Ari , Gerhard Linhofer
发明人： Niyazi Ari , Gerhard Linhofer
IPC分类号： G05F1/70 , G05F1/30 , H02J3/06 , H03H7/20 , H02J3/18
CPC分类号： G05F1/30 , H02J3/06 , H03H7/20
摘要： Phase shifters are used in meshed, multi-phase power supply systems for improving their transmission stability and for load-flow regulating purposes. In order to be able to use a less costly exciter transformer of lower rating or the tertiary or compensation winding of a system coupling transformer for generating intermediate-circuit voltages as a function of system input voltages, a resonant circuit is provided between the exciter transformer and an auxiliary transformer. In this resonant circuit consisting of series-connected capacitors and inductive resistances which are connected to taps between these capacitors and can be switched in and out by means of alternating-current switches, tap voltages are generated which are supplied to the primary windings of the auxiliary transformer. At the secondary windings, connected in series with phase conductors of the auxiliary transformer, auxiliary voltages occur which are superimposed on the system input voltages and effect the desired phase shifts. Instead of air chokes which can be switched off, chokes with a ferromagnetic core or the impedance of a transformer, the secondary winding of which can be short-circuited by means of an alternating-current switch, can also be used as variable inductive resistances in the resonant circuit. The inductive resistances can also be star-connected instead of delta-connected.
摘要翻译：移相器用于网状多相电源系统，以提高其传输稳定性和负载流调节目的。为了能够使用低成本的低成本的励磁变压器或用于产生作为系统输入电压的函数的中间电路电压的系统耦合变压器的三次或补偿绕组，在励磁变压器和辅助变压器。在由串联电容器和感性电阻组成的谐振电路中，连接到这些电容器之间的抽头，并且可以通过交流开关来切换和切换，产生提供给辅助的初级绕组的抽头电压变压器。在与辅助变压器的相导体串联连接的次级绕组中，产生叠加在系统输入电压上并产生所需相移的辅助电压。除了可以关闭的空气扼流圈之外，还可以使用铁磁芯扼流圈或变压器的阻抗，其次级绕组可以通过交流开关短路，也可以用作变压器谐振电路。感应电阻也可以是星形连接，而不是三角形连接。

7. 发明授权

US4710735A Absorption circuit 失效
标题翻译：吸收电路
公开(公告)号：US4710735A
公开(公告)日：1987-12-01
申请号：US809799
申请日：1985-12-17
申请人： Leopold Blahous , Gerhard Linhofer
发明人： Leopold Blahous , Gerhard Linhofer
IPC分类号： H02H7/16 , H02J3/01 , H03H7/01 , H03H7/06
CPC分类号： H02J3/01 , H02H7/16 , Y02E40/40
摘要： Absorption circuits (C.sub.f,L.sub.F) are used for filtering out unwanted harmonic currents in electric lines (R, S, T), particularly for rated power within the range of 1 MVar-1 GVar, for example in the case of high-voltage direct-current transmission systems. So that the absorption circuit holds the virtual capacitance of the filter capacitor circuit (C.sub.f) at its rated value at a tuned frequency even when one or more capacitors (C11, C21, C12, C22) fail, a compensating choke (L) is provided in the cross branch of an "H" circuit of the capacitors. The capacitance of each capacitor (C11 . . . C22) is equal to the total capacitance C of the filter capacitor circuit (C.sub.f). The inductance L of the compensating choke (L) is equal to 1/.omega..sup.2 C, where .omega.=angular frequency of the harmonic. The compensating choke (L) can be designed for 5%-10% of the power of the filter choke (L.sub.F). Instead of in the cross branch, the compensating choke can also be connected between two series-connected capacitors (C12, C 22) in series with these capacitors.
摘要翻译：吸收电路（Cf，LF）用于滤除电线（R，S，T）中的不需要的谐波电流，特别是在1 MVar-1 GVar范围内的额定功率，例如在高压直流当前传输系统。因此，即使当一个或多个电容器（C11，C21，C12，C22）失效时，吸收电路将滤波电容电路（Cf）的虚拟电容保持在调谐频率的额定值，则提供补偿扼流圈（L）在电容器的“H”电路的交叉分支中。每个电容器（C11。。C22）的电容等于滤波电容电路（Cf）的总电容C。补偿扼流圈（L）的电感L等于1 /ω2C，其中ω=谐波的角频率。补偿扼流圈（L）可设计为过滤器扼流圈（LF）功率的5％-10％。代替交叉分支，补偿扼流圈也可以连接在与这些电容器串联的两个串联电容器（C12，C22）之间。

8. 发明授权

US5999428A Invertor with reduced common mode voltage 失效
标题翻译：具有降低共模电压的变频器
公开(公告)号：US5999428A
公开(公告)日：1999-12-07
申请号：US137746
申请日：1998-08-21
申请人： Peter Dahler , Osvin Gaupp , Gerhard Linhofer , Jean-Fran.cedilla.ois Ravot
发明人： Peter Dahler , Osvin Gaupp , Gerhard Linhofer , Jean-Fran.cedilla.ois Ravot
IPC分类号： H02M7/48 , H02M7/49 , H02M7/00
CPC分类号： H02M7/49 , Y10T307/713
摘要： An inverter having a plurality of inverter bridges which operate in parallel and whose output voltage is summed by way of a transformer. The transformer has a number of primary windings and associated secondary windings which correspond to the number of inverter bridges. Each inverter bridge is connected on the output side to a primary winding. The secondary windings are connected in series to sum the output voltages. The transformer has a center tap which is grounded by a ground connection. The suppression of in-phase or common-mode interference currents flowing by the ground connection and the interference voltages associated therewith is achieved by dividing the secondary windings into a first and second identical partial secondary winding. The partial secondary windings are connected to one another in the center tap in such a way that the common-mode currents and voltages induced in the partial secondary windings mutually cancel.
摘要翻译：一种逆变器，具有并联运行的多个逆变桥，其输出电压通过变压器相加。变压器具有多个初级绕组和相应的次级绕组，其对应于逆变桥的数量。每个逆变桥在输出侧连接到初级绕组。次级绕组串联连接以求输出电压。变压器具有通过接地连接接地的中心抽头。通过将次级绕组分成第一和第二相同的部分次级绕组来实现由接地连接流过的同相或共模干扰电流的抑制和与之相关的干扰电压。部分次级绕组在中心抽头中彼此连接，使得部分次级绕组中感应的共模电流和电压相互抵消。

9. 发明授权

US4539432A Coolable electrical component 失效
标题翻译：可冷却电气元件
公开(公告)号：US4539432A
公开(公告)日：1985-09-03
申请号：US573520
申请日：1984-01-25
申请人： Georg Koppl , Gerhard Linhofer
发明人： Georg Koppl , Gerhard Linhofer
IPC分类号： H02G5/10 , H01B7/34
CPC分类号： H02G5/10
摘要： A coolable electrical component having a housing (1) filled with insulating gas, and a conductor (2) of hollow cylindrical construction causing a high voltage, arranged in this housing (1). Through the interior space (7) of the conductor a coolant is circulated. The electrical component occupies a smaller space and yet allows increased current load capacity. This is achieved by providing a high-pressure tank (19) extending in the longitudinal direction of the conductor (2) in the interior space (7) thereof. The tank is connected to a gas liquefaction installation by means of outlet orifices (18) perforated in its wall at regular intervals thereof.Such a componet may preferably be a tubular gas cable or a component of a gas-insulated, metal-encapsulated switchgear.
摘要翻译：一种具有填充有绝缘气体的壳体（1）和布置在该壳体（1）中的导致高电压的中空圆柱形结构的导体（2））的可冷却电气部件。通过导体的内部空间（7），冷却剂循环。电气部件占用更小的空间，并允许增加电流负载能力。这通过在其内部空间（7）中提供在导体（2）的纵向方向上延伸的高压罐（19）来实现。罐通过在其壁上以规则间隔穿孔的出口孔（18）连接到气体液化装置。这样的部件可以优选地是管状气体电缆或气体绝缘的，金属封装的开关设备的部件。

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