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1. 发明授权

US4409542A Monitoring system for an LC filter circuit in an AC power network 失效
标题翻译：交流电源网络中LC滤波电路的监控系统
公开(公告)号：US4409542A
公开(公告)日：1983-10-11
申请号：US266279
申请日：1981-05-26
申请人： Michael Becker , Alfons Fendt , Dusan Povh , Klaus Renz , Gerhard Schuch , Hermann Waldmann
发明人： Michael Becker , Alfons Fendt , Dusan Povh , Klaus Renz , Gerhard Schuch , Hermann Waldmann
IPC分类号： G01R31/02 , H02H3/36 , H02H3/44 , H02H7/16 , H03H7/01 , G01R27/00
CPC分类号： H02H3/44 , H02H3/365 , H02H7/16
摘要： A monitoring system for measuring the phase currents of a filter circuit, the monitoring system having current measuring transformers coupled to respective filter sections for suppressing the harmonic content. Voltage measuring transformers are provided for measuring the network phase voltages, each such voltage measuring transformer being coupled to an electronic filter simulator and a filtering section for suppressing harmonic content. The fundamental frequency component of the measured phase currents and the simulated phase currents are conducted to transient comparator circuitry which is coupled to indicating and triggering circuitry having individual counter stages. Only rapid variations between the measured and simulated phase currents will result in fault indications, thereby preventing false indications resulting from variations in temperature.
摘要翻译：一种用于测量滤波器电路的相电流的监测系统，该监测系统具有耦合到相应滤波器部分的用于抑制谐波含量的电流测量变压器。提供电压测量变压器用于测量网络相电压，每个这样的电压测量变压器耦合到电子滤波器模拟器和用于抑制谐波含量的滤波部分。所测量的相电流和模拟相电流的基频分量被传送到瞬态比较器电路，该电路耦合到具有各个计数级的指示和触发电路。测量和模拟相电流之间的快速变化将导致故障指示，从而防止由温度变化引起的错误指示。

2. 发明授权

US4393345A Circuit for damping hunting by electric machines 失效
标题翻译：电机阻尼狩猎电路
公开(公告)号：US4393345A
公开(公告)日：1983-07-12
申请号：US199685
申请日：1980-10-22
申请人： Kurt Fork , Wolfgang Kaufhold , Wolfgang Meusel , Hermann Waldmann
发明人： Kurt Fork , Wolfgang Kaufhold , Wolfgang Meusel , Hermann Waldmann
IPC分类号： H02P9/14 , H02P9/10 , H02H7/06 , H02P9/00
CPC分类号： H02P9/10 , Y10S505/851
摘要： A circuit for damping hunting oscillations of controlled electric machines. The circuit is provided with a measuring circuit for determining the hunting oscillations and an identifier circuit for determining the angle components of such hunting oscillations. A phase shifter circuit is provided for receiving the angle components produced by the identifier circuit and forming a hunting oscillation correction signal which is shifted in phase from the hunting oscillations by a predetermined phase angle. The hunting oscillation correction signal is conducted to a control unit of the electric machine. The invention is particularly useful in damping hunting by the rotors of voltage controlled synchronous generators.
摘要翻译：用于阻尼受控电机摆动振荡的电路。该电路设置有用于确定捕获振荡的测量电路和用于确定这种振荡的角度分量的识别器电路。提供了一种移相器电路，用于接收由识别电路产生的角度分量，并形成一个摆动振荡校正信号，该振荡校正信号相对于摆动振荡相移预定的相位角。将振荡校正信号传送到电机的控制单元。本发明特别适用于由电压控制的同步发电机的转子阻尼摆动。

3. 发明授权

US4419621A Monitoring system for the capacitor batteries of a three-phase filter circuit 失效
标题翻译：三相滤波电路的电容电池监控系统
公开(公告)号：US4419621A
公开(公告)日：1983-12-06
申请号：US265459
申请日：1981-05-20
申请人： Michael Becker , Alfons Fendt , Dusan Povh , Klaus Renz , Gerhard Schuch , Hermann Waldmann
发明人： Michael Becker , Alfons Fendt , Dusan Povh , Klaus Renz , Gerhard Schuch , Hermann Waldmann
IPC分类号： G01R31/00 , H02H3/36 , H02H3/44 , H02H7/16 , G01R31/02
CPC分类号： H02H3/365 , H02H3/44 , H02H7/16
摘要： A system for monitoring the capacitor batteries of a three-phase filter circuit. Each capacitor battery is formed of a plurality of parallel legs each having a plurality of sectional capacitors which are connected in series with fuses. Adjacent ones of the sectional capacitors are coupled to one another. In a three-phase system, three capacitor batteries are coupled to one another in a Y-circuit configuration, the Y-circuit node being coupled to a reference potential, illustratively ground. The magnitude and phase of the fundamental frequency component of the current flowing from the Y-circuit node to the reference potential is monitored, variations therein being evaluated to identify defective sectional capacitors. Only variations in the Y-circuit node current which occur rapidly will trigger fault signals, thereby preventing false indications resulting from variations in temperature.
摘要翻译：一种用于监测三相滤波电路的电容器电池的系统。每个电容器电池由多个平行腿构成，每个平行腿具有与保险丝串联连接的多个截面电容器。相邻的分段电容器彼此耦合。在三相系统中，三个电容器电池以Y电路配置彼此耦合，Y电路节点耦合到参考电位，示例性地接地。监视从Y电路节点流向参考电位的电流的基频分量的幅度和相位，评估其中的变化以识别有缺陷的分段电容器。只有迅速发生的Y电路节点电流的变化将触发故障信号，从而防止温度变化引起的错误指示。

4. 发明授权

US4326230A Circuit for monitoring the voltage stress of a capacitor 失效
标题翻译：用于监测电容器电压应力的电路
公开(公告)号：US4326230A
公开(公告)日：1982-04-20
申请号：US165809
申请日：1980-07-03
申请人： Michael Becker , Klaus Renz , Manfred Weibelzahl , Alfons Fendt , Dusan Povh , Gerhard Schuch , Hermann Waldmann
发明人： Michael Becker , Klaus Renz , Manfred Weibelzahl , Alfons Fendt , Dusan Povh , Gerhard Schuch , Hermann Waldmann
IPC分类号： H02H3/50 , H02H7/16
CPC分类号： H02H3/50 , H02H7/16
摘要： A circuit for monitoring the voltage stress of a capacitor which produces an over-stress indicator signal responsive to the over-voltage history of the capacitor. If the measured voltage stress of the capacitor exceeds a predetermined over-voltage value, a characteristic-curve generator, having a predetermined transfer function, produces an output signal which is responsive to the measured voltage stress of the capacitor and the transfer function of the characteristic-curve generator. This signal is combined with a further signal which is responsive to a predetermined permissible continuous operation voltage value. The combined signals are conducted to an integrator having a predetermined integration time constant for producing an overload signal. The overload signal at the output of the integrator is a measure of the state of stress of the capacitor. Circuitry may be provided for disconnecting the capacitor from a transmission line in response to the output signal of the integrator. Also, plural capacitor voltage stress monitoring stages may be combined to monitor the capacitor voltage stress in a plurality of over-voltage ranges.
摘要翻译：用于监测电容器的电压应力的电路，其产生响应于电容器的过电压历史的过应力指示器信号。如果电容器的测量电压应力超过预定的过电压值，则具有预定传递函数的特性曲线发生器产生响应于测量的电容器的电压和特性的传递函数的输出信号曲线发生器。该信号与响应于预定允许的连续工作电压值的另一信号组合。组合的信号被传导到具有预定积分时间常数的积分器，以产生过载信号。积分器输出端的过载信号是电容器应力状态的测量。可以提供电路，用于响应于积分器的输出信号将电容器与传输线路断开。此外，可以组合多个电容器电压应力监测级以监测多个过电压范围内的电容器电压应力。

5. 发明授权

US3968422A Method and apparatus for the static compensation of reactive power 失效
标题翻译：无功功率静态补偿方法及装置
公开(公告)号：US3968422A
公开(公告)日：1976-07-06
申请号：US555540
申请日：1975-03-05
申请人： Hermann Waldmann
发明人： Hermann Waldmann
IPC分类号： G05F1/70 , H02J3/18
CPC分类号： H02J3/1864 , Y02E40/12
摘要： A method and apparatus for the static compensation of reactive power using controlled reactive power converters having control variables derived from the phase load currents in which the phase load currents are converted into a line frequency oscillation and two rotating current vectors derived from each of the line frequency components, with the current vector components then transformed into d-c quantities by addition to a system vector to form a co-rotating and counter-rotating vector, from the components of which control variables of the reactive power converter are formed.
摘要翻译：一种用于使用受控无功功率转换器进行静态补偿的方法和装置，所述控制无功功率转换器具有从相位负载电流转换为线路频率振荡的相位负载电流导出的控制变量，以及从每个线路频率导出的两个旋转电流矢量组件，其中当前矢量分量然后通过加到系统向量而被转换为直流量，以形成从其形成无功功率转换器的控制变量的分量的同向旋转和反向旋转矢量。

6. 发明授权

US3934184A Arrangement for regulating the speed of an asynchronous motor 失效
标题翻译：用于调节异步电动机转速的装置
公开(公告)号：US3934184A
公开(公告)日：1976-01-20
申请号：US382883
申请日：1973-07-26
申请人： Heinrich Bonig , Hermann Waldmann
发明人： Heinrich Bonig , Hermann Waldmann
IPC分类号： H02P25/06 , H02P27/02 , H02P5/40
CPC分类号： H02P27/026
摘要： An improved arrangement for regulating the speed of an asynchronous motor in which an real performance regulator is inserted between the speed regulator and the means controlling the input voltage and/or current to the motor. The subsidiary regulator inserted between the speed control and the motor control circuits receives as an input a value of the real power which is proportional to the torque or traction force thereby resulting in linear control of the motor based on its actual performance.
摘要翻译：一种用于调节异步电动机速度的改进装置，其中在速度调节器和控制输入电压和/或电流的装置之间插入实际性能调节器。插入在速度控制和电动机控制电路之间的辅助调节器作为输入端接收与转矩或牵引力成比例的有功功率的值，从而根据其实际性能进行马达的线性控制。

7. 发明授权

US5294857A Synchronous machine having control coils for compensating mechanical oscillations of the rotor 失效
标题翻译：具有用于补偿转子的机械振荡的控制线圈的同步机
公开(公告)号：US5294857A
公开(公告)日：1994-03-15
申请号：US859694
申请日：1992-06-10
申请人： Herbert Auinger , Hermann Waldmann
发明人： Herbert Auinger , Hermann Waldmann
IPC分类号： H02K3/20 , H02K19/26 , H02K1/24
CPC分类号： H02K19/26 , H02K3/20
摘要： In order to compensate for the effects of mechanical oscillations of the salient pole rotor in a synchronous machine in a simple manner, control coils are provided which generate a controllable quadrature-axis magnetic field. The control coils are arranged on the salient pole rotor in such a way that the quadrature-axis magnetic field generated by the control coils is superimposed in the air gap on the controllable direct-axis magnetic field generated by exciting coils enclosing each pole body of the salient pole rotor.
摘要翻译： PCT No.PCT / EP90 / 01987第 371日期：1992年6月10日 102（e）日期1992年6月10日PCT 1990年11月20日PCT PCT。公开号WO91 / 10278 日期1991年7月11日。为了以简单的方式补偿突极转子的机械振荡的影响，提供产生可控正交轴磁场的控制线圈。控制线圈以这样的方式设置在凸极转子上，使得由控制线圈产生的正交轴磁场叠加在气隙中的可控直轴磁场上，该励磁线圈由围绕凸极转子。

8. 发明授权

US4057714A Durability or service-life monitoring device for a turbogenerator shaft 失效
标题翻译：用于涡轮发电机轴的耐用性或使用寿命监测装置
公开(公告)号：US4057714A
公开(公告)日：1977-11-08
申请号：US727795
申请日：1976-09-29
申请人： Kurt Fork , Dietrich Lambrecht , Hermann Waldmann , Helmut Hofmann
发明人： Kurt Fork , Dietrich Lambrecht , Hermann Waldmann , Helmut Hofmann
IPC分类号： F01D21/00 , G06G7/63 , G06G7/64 , G07C3/00 , G01L3/00 , G01M15/00 , G06F15/20
CPC分类号： G07C3/00 , F01D21/00 , F01D21/003 , G06G7/63 , G06G7/64
摘要： Device for monitoring the service life of the shaft of a turbine-generator set includes an analog computer circuit having a pair of inputs and an output, means for feeding to the inputs of the analog computer circuit electrical quantities proportional to the voltage and the current of the generator, the analog computer circuit having means for converting the electrical quantities that are proportional to the generator voltage and current to an electrical quantity proportional to the electrical torque in the air gap of the generator, a simulation circuit having an input connected to the output of the analog computer circuit for receiving therefrom the electrical quantity proportional to the electrical torque in the air gap of the generator, the simulation circuit comprising means for determining the torques in individual sections of the shaft of the turbine-generator set and having a multiplicity of outputs corresponding to the number of individual sections of the shaft, an analog-to-digital converter having an output and having inputs connected to the outputs of the simulation circuit for receiving therefrom analog data corresponding to the torques in individual sections of the shaft and converting them to corresponding digital data, a digital computer having an input connected to the output of the analog-to-digital converter and connected therethrough to the simulation circuit, a trouble-monitoring device connected parallel to the analog-to-digital converter, and having means for restricting the analog-to-digital converter to feed the digital data through the output thereof to the input of the digital computer only if a torque of extreme value is present in a section of the shaft, the digital computer having means for converting the digital data into signals proportional to the service life of the shaft.
摘要翻译：用于监测涡轮发电机组的轴的使用寿命的装置包括具有一对输入和输出的模拟计算机电路，用于馈送模拟计算机电路的输入的装置与电压和电流成比例的电量发电机，模拟计算机电路具有将与发电机电压和电流成比例的电量转换成与发电机气隙中的电转矩成比例的电量的装置，具有连接到输出端的输入端的模拟电路模拟计算机电路用于从其接收与发电机气隙中的电力转矩成比例的电量，该模拟电路包括用于确定涡轮发电机组的轴的各个部分中的扭矩并具有多个对应于轴的各个部分的数量的输出，模拟到二进制具有输出并且具有连接到模拟电路的输出的输入，用于从其接收与轴的各个部分中的扭矩相对应的模拟数据并将其转换成相应的数字数据;数字计算机，其输入连接到所述模数转换器通过其连接到所述模拟电路，与所述模数转换器并联连接的故障监控装置，以及具有用于限制所述模数转换器以通过所述模拟数字转换器馈送所述数字数据的装置其输出到数字计算机的输入端，只要在轴的一部分中存在极值转矩，则数字计算机具有用于将数字数据转换成与轴的使用寿命成正比的信号的装置。

9. 发明授权

US4429338A Earth contact monitoring device for a polyphase three-phase filter circuit 失效
标题翻译：用于多相三相滤波电路的接地监测装置
公开(公告)号：US4429338A
公开(公告)日：1984-01-31
申请号：US395187
申请日：1982-07-06
申请人： Michael Becker , Alfons Fendt , Dusan Povh , Klaus Renz , Gerhard Schuch , Hermann Waldmann
发明人： Michael Becker , Alfons Fendt , Dusan Povh , Klaus Renz , Gerhard Schuch , Hermann Waldmann
IPC分类号： H02H3/16 , H02H7/00
CPC分类号： H02H3/165 , H02H7/00
摘要： A monitoring system for detecting earth contact of at least one phase of a polyphase network. Each of the phases in the network is connected by a capacitive-inductive filter to a neutral node which is connected to earth. In one embodiment of the invention, the current flowing from the neutral node to earth is detected by an induction current transformer which provides a signal responsive to said earth current. The output signal of the induction current transformer is conducted through at least one low pass filter for suppressing harmonics, and rectified to produce a direct current voltage signal, the amplitude of which is proportional to the amplitude of the fundamental frequency component of said signal. A fault indicating signal is produced when the direct voltage signal exceeds a predetermined value.
摘要翻译：一种用于检测多相网络的至少一相的接地接触的监测系统。网络中的每个相位通过电容感应滤波器连接到连接到地的中性点。在本发明的一个实施例中，从中性节点流向地的电流由感应电流互感器检测，感应电流互感器提供响应于所述接地电流的信号。感应电流互感器的输出信号通过至少一个用于抑制谐波的低通滤波器传导，并被整流以产生直流电压信号，该直流电压信号的幅度与所述信号的基频分量的振幅成比例。当直流电压信号超过预定值时，产生故障指示信号。

10. 发明授权

US4008428A Circuit arrangement with a number of frequency converters, particularly Y-connected direct frequency converters 失效
标题翻译：电路配置有多个变频器，尤其是Y型直接变频器
公开(公告)号：US4008428A
公开(公告)日：1977-02-15
申请号：US647110
申请日：1976-01-07
申请人： Hermann Waldmann , Manfred Weibelzahl
发明人： Hermann Waldmann , Manfred Weibelzahl
IPC分类号： H02M5/25 , H02M5/27 , H02P13/30
CPC分类号： H02M5/271
摘要： A circuit arrangement is disclosed having an odd number of Y-connected frequency converters. The control units of the frequency converters are associated with current regulators, all of which are addressed by an additional common reference value. In accord with the invention, the aforesaid reference value is derived by generating a difference voltage corresponding to the difference of the voltages at the neutral point of the frequency converter circuit and the neutral point of the load. This difference voltage is then passed through a delay member whose time constant corresponds to the time constant of the load to develop the reference value.
摘要翻译：公开了具有奇数个Y连接变频器的电路装置。变频器的控制单元与电流调节器相关联，所有这些都通过额外的公共参考值来解决。根据本发明，通过产生与变频器电路的中性点的电压差和负载的中性点相对应的差分电压来导出上述参考值。然后，该差值电压通过延迟部件，时间常数对应于负载的时间常数以产生参考值。

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