公开(公告)号：US4685044A

公开(公告)日：1987-08-04

申请号：US763466

申请日：1985-08-07

申请人： Manfred Weibelzahl ,  Georg Wild ,  Kadry Sadek

发明人： Manfred Weibelzahl ,  Georg Wild ,  Kadry Sadek

IPC分类号： H02M1/12 ,  H02M7/757 ,  H02H7/00

CPC分类号： H02M7/7575 ,  H02M1/12 ,  Y02E60/60

摘要： If in a high-voltage d-c transmission system (HVDCTS), a resonance frequency of an a-c voltage network (NB) connected to the inverter (1B) is located in the vicinity of a voltage component contained in the a-c voltage network, a resonance frequency which often cannot be compensated by a current regulator controlling the rectifier stage (1A) is coupled into the d-c circuit of the HVDCTS via the inverter. Therefore, resonance phenomena which requires an emergency shutdown of the HVDCTS are generated. Therefore, a pilot quantity (U'.sub.d) is formed with a defined phase shift relative to the resonance oscillation of the HVDCTS voltage and added to the output of the current regulator. Thereby, a constant HVDCTS current can be generated for a given operating point and the resonance in the a-c voltage network (NB) can be damped. If the resonance oscillation is determined by two quantities (U'.sub.d, i'.sub.d) of, respectively, the HVDCTS voltage as well as of the HVDCTS current, stable damping of the resonance phenomena can be achieved by the pilot control described with the two quantities even for deviating operating points.

摘要翻译： 如果在高压直流输电系统（HVDCTS）中，连接到逆变器（1B）的交流电压网络（NB）的谐振频率位于交流电压网络中包含的电压分量附近，则共振频率 其通常不能通过控制整流器级（1A）的电流调节器经由逆变器耦合到HVDCTS的直流电路来补偿。 因此，产生需要紧急关闭HVDCTS的共振现象。 因此，导频量（U'd）相对于HVDCTS电压的谐振振荡形成具有规定的相移并被加到电流调节器的输出端。 因此，对于给定的工作点可以产生恒定的HVDCTS电流，并且a-c电压网络（NB）中的谐振可被衰减。 如果共振振荡分别由HVDCTS电压和HVDCTS电流的两个量（U'd，i）确定，那么谐振现象的稳定阻尼可以通过两个描述的导频控制来实现 数量甚至偏离工作点。

公开(公告)号：US4888674A

公开(公告)日：1989-12-19

申请号：US288282

申请日：1988-12-21

申请人： Manfred Weibelzahl ,  Georg Wild

发明人： Manfred Weibelzahl ,  Georg Wild

IPC分类号： H02J1/00 ,  H02J3/36

CPC分类号： H02J3/36 ,  Y02E60/60

摘要： A high-voltage d-c transmission system in which one of the converters is operated as a rectifier and the other as an inverter. A first cascade control which sets the rectifier control angle includes a superimposed active power controller and a subordinated d-c controller. A second cascade control which sets the inverter control angle includes a superimposed voltage/active power controller, a superimposed quenching angle control and a subordinated quenching angle controller. The setting signal of each of the two superimposed controllers are controlled in dependence on the control deviation of the other one of the superimposed controllers via a first or second pilot control for decoupling the cascade controls. The gain factors of the pilot control quantities depend on the operating point in such a manner that a small engagement of the pilot control variable exists for small control angles and a large engagement exists for large control angles.

摘要翻译： 一种高压d-c传输系统，其中一个转换器作为整流器工作，另一个作为逆变器。 设置整流器控制角的第一级联控制包括叠加的有功功率控制器和从属d-c控制器。 设置逆变器控制角的第二级联控制包括叠加的电压/有功功率控制器，叠加的淬火角控制和从属淬火角控制器。 通过用于解耦级联控制的第一或第二导频控制，依赖于另一个叠加的控制器的控制偏差来控制两个叠加的控制器中的每一个的设置信号。 导频控制量的增益因子取决于操作点，使得对于小的控制角存在导频控制变量的小的接合，并且对于大的控制角度存在大的接合。

公开(公告)号：US4837671A

公开(公告)日：1989-06-06

申请号：US193511

申请日：1988-05-12

申请人： Georg Wild ,  Rembert Kohler ,  Manfred Weibelzahl ,  Martin Haushofer ,  Johann Messner

发明人： Georg Wild ,  Rembert Kohler ,  Manfred Weibelzahl ,  Martin Haushofer ,  Johann Messner

IPC分类号： H02H7/26 ,  H02J3/36 ,  H02M7/757

CPC分类号： H02J3/36 ,  H02H7/268 ,  H02M7/7575 ,  Y02E60/60

摘要： A state signal is formed to indicate a transition to a bypass mode of operation. In forming the signal of each winding system of a corresponding converter transformer on a side of the converter transformer are determined, weighted with weighting factors and summed up. The summation current formed in this manner does not have any null zones in the normal operation of the converter. All weighting factors are different if the phase currents between the converter and the converter transformer are used to produce the summation current. In the case of a converter transformer which is connected to the converter via a delta-connected winding system and in which the winding currents are used, certain differences formed by the weighting factors are not to be the same. A DC Hall converter with an insertion hole is particularly well suited for weighting and combining the currents of each individual winding system.

摘要翻译： 形成状态信号以指示向旁路操作模式的转换。 在转换变压器一侧形成相应变流器变压器的每个绕组系统的信号被确定，用加权因子加权并加总。 以这种方式形成的求和电流在转换器的正常工作中没有任何空区。 如果转换器和转换器变压器之间的相电流用于产生求和电流，所有加权因子都是不同的。 在通过三角形连接的绕组系统连接到转换器并且使用绕组电流的转换器变压器的情况下，由加权因子形成的某些差异将不相同。 具有插入孔的DC霍尔转换器特别适用于加权和组合每个单独绕组系统的电流。

公开(公告)号：US4727467A

公开(公告)日：1988-02-23

申请号：US842511

申请日：1986-03-21

申请人： Franz-Wolfgang Bendl ,  Wolfgang Kaufhold ,  Georg Wild

发明人： Franz-Wolfgang Bendl ,  Wolfgang Kaufhold ,  Georg Wild

IPC分类号： H02H7/26 ,  H02J3/36 ,  H02M7/757 ,  H02H7/10

CPC分类号： H02H7/268 ,  H02J3/36 ,  H02M7/7575 ,  Y02E60/60

摘要： Upon the occurrence of a change of an a.c. voltage amplitude of an a.c. power network line in one station A, a computing element generates a first pilot control variable by means of which the control angle of the respective static converter is shifted in terms of a reduction of its d.c. output voltage. In the other station a voltage correction regulator generates a correction variable by compensating the voltage drop in the HVDC transmission line, by means of which the control voltage of the respective static converter is corrected, which, for example, is generated by a pilot control voltage and the output signal of a marginal current or extinction angle regulator. Thus, even in case of an a.c. power network fault-induced voltage dip of the HVDC voltage, a preset value can be maintained for the HVDC current and the voltage dip in the power transmission be reduced. This procedure is independent of which station is operated as rectifier and which as inverter.

摘要翻译： 发生变化的a.c. 电压幅度a.c. 在一个站A中的电力网络线路中，计算单元生成第一导频控制变量，通过该第一导频控制变量，相应的静态转换器的控制角度以减小其直流电流的方式移动。 输出电压。 在另一站中，电压校正调节器通过补偿HVDC传输线中的电压降来产生校正变量，通过该校正可以校正各个静态转换器的控制电压，例如由导频控制电压 和边缘电流或消光角调节器的输出信号。 因此，即使在a.c.的情况下也是如此。 电网故障引起的HVDC电压下降，可以保持HVDC电流的预设值，并降低电力传输中的电压下降。 该程序独立于哪个站作为整流器运行，哪个作为逆变器运行。

公开(公告)号：US4638416A

公开(公告)日：1987-01-20

申请号：US706755

申请日：1985-02-28

申请人： Helmut Neupauer ,  Wolfgang Kaufhold ,  Georg Wild

发明人： Helmut Neupauer ,  Wolfgang Kaufhold ,  Georg Wild

IPC分类号： H02J3/36 ,  H02M7/757

CPC分类号： H02J3/36 ,  H02M7/7575 ,  Y02E60/60

摘要： A method and apparatus are described for operating a high voltage d.c. (HVDC) transmission line system connecting two a.c. transmission line systems during normal operation and during malfunction in either the rectifier station or the inverter station of the HVDC system.When a malfunction exists in one station of a HVDC transmission line, such as a rectifier station, then the regular thyristor firings are disabled and a bypass circuit, preferrably one or several bridge paths of a converter, are fired. As soon as a corresponding change in the current or voltage occurs at the d.c. voltage connections of the other station, this station assumes rectifier operation during which the HVDC transmission line is utilized as a reactive load to stabilize the other system. Once the malfunction has ceased to exist, operation is first resumed in the first station by extinguishing the bypass thyristors and subsequently resumed also in the other station. This procedure permits stable normal operation in both stations, or bypass operation without using remote control signals during which the HVDC transmission line can be rapidly controlled to stabilize the systems.

摘要翻译： 描述了用于操作高电压直流的方法和装置 （HVDC）传输线系统连接两个直流 在直流输电系统的整流站或逆变器站的正常运行和故障期间的传输线系统。 当高压直流输电线路（如整流站）的一个站内存在故障时，常规晶闸管启动被禁用，旁路电路，优选地是转换器的一个或多个桥接路径被点火。 一旦电流或电压的相应变化发生在直流电压。 另一站的电压连接，本站采取整流运行，在此期间，HVDC传输线用作无功负载以稳定其他系统。 一旦故障已经不复存在，首先通过熄灭旁路晶闸管来恢复运行，然后在另一个站中恢复运行。 该过程允许两个站中的稳定正常操作或旁路操作，而不使用遥控信号，在此期间可以快速控制HVDC传输线以稳定系统。

公开(公告)号：US4601180A

公开(公告)日：1986-07-22

申请号：US807763

申请日：1985-12-09

申请人： Harald Mayer ,  Georg Wild

发明人： Harald Mayer ,  Georg Wild

IPC分类号： D04B15/06 ,  D04B35/04

CPC分类号： D04B35/04

摘要： To enable the latch (5) of a latch needle to be capable of absorbing greattresses without danger of damage to the needle latch, or to the needle itself, the latch has at least one through-aperture (11, 19) or opening in the region between its pivot bore (8) and the latch spoon (9).

摘要翻译： 为了使闩锁针的闩锁（5）能够吸收大的应力而不会损坏针闩或针本身，闩锁具有至少一个通孔（11,19）或开口 其枢轴孔（8）和闩锁勺（9）之间的区域。

公开(公告)号：US5053691A

公开(公告)日：1991-10-01

申请号：US482257

申请日：1990-02-20

申请人： Georg Wild ,  Karl-Friedrich Leowald ,  Vladimir E. Henner

发明人： Georg Wild ,  Karl-Friedrich Leowald ,  Vladimir E. Henner

IPC分类号： H02J3/24

CPC分类号： H02J3/24

摘要： When there are variations in the short-circuit power of a system, the operating conditions can change, particularly in a controller of a compensating device. To automatically adapt the controller and to avoid or suppress oscillations or voltage variations in the system, a method is provided according to a first solution, where the circuit state of a compensating element is modified for testing purposes. The reaction of the system is detected in a device and, then a parameter which determines the damping of the controller is modified by means of a computing device. According to a second solution, an oscillation of the controller is established by detecting a signal which is dependent on the system voltage and by comparing specific variations. To suppress the oscillations, the hysteresis of the controller is damped by means of the computing device.

摘要翻译： 当系统的短路功率发生变化时，特别是在补偿装置的控制器中，操作条件可能改变。 为了自动调整控制器并避免或抑制系统中的振荡或电压变化，根据第一解决方案提供了一种补偿元件的电路状态以进行测试的方法。 在装置中检测到系统的反应，然后通过计算装置修改确定控制器的阻尼的参数。 根据第二个解决方案，通过检测取决于系统电压的信号并通过比较特定变化来建立控制器的振荡。 为了抑制振荡，通过计算装置阻尼控制器的滞后。