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1.发明授权Method and apparatus for symmetrically modulating a controlled series compensation system 失效用于对称调制受控串联补偿系统的方法和装置
公开(公告)号：US5291120A
公开(公告)日：1994-03-01
申请号：US063283
申请日：1993-05-18
CPC分类号： H02J3/1807 , Y02E40/30
摘要： A method and an apparatus for symmetrically modulating a controlled series compensation system (2) in electrical networks (6). Impedance manipulated variables determined from a current control for the series compensators (14) of the system (2) are limited by determining an upper or lower limiting value (Z.sub.OO,Z.sub.OU). The upper and lower limiting values are respectively determined by adding a positive or negative deviation (.DELTA.Z.sub.+,.DELTA.Z.sub.-) to and subtracting it from a reference manipulated variable (Z.sub.O) for impedance. The reference manipulated variable (Z.sub.O) for impedance is selected from the impedance manipulated variables (Z.sub.y1,Z.sub.y2,Z.sub.y3). Thus, small asymmetries can be corrected and, given network faults of generally only a brief duration, unnecessary control deviations can be avoided.
摘要翻译： 一种用于对称地调制电网（6）中的受控串联补偿系统（2）的方法和装置。 通过确定上限值或下限值（ZOO，ZOU）来限制系统（2）的串联补偿器（14）的当前控制确定的阻抗操纵变量。 上限值和下限值分别通过将正或负偏差（（Delta）Z +，（Delta）Z-）加上并从参考操作变量（ZO）中减去阻抗来确定。 阻抗的参考操作变量（ZO）从阻抗操作变量（Zy1，Zy2，Zy3）中选择。 因此，可以校正小的不对称性，并且由于网络故障通常只有短暂的持续时间，可以避免不必要的控制偏差。
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2.发明授权Circuit arrangement for the wireless transmission of control signals to the control paths of controlled semiconductor valves 失效用于将控制信号无线传输到受控半导体阀的控制路径的电路装置
公开(公告)号：US3946389A
公开(公告)日：1976-03-23
申请号：US529723
申请日：1974-12-05
申请人： Adolf Habock , Oskar Beckmann , Stefan Frese , Herbert Radda , Franz Mayerhofer , Karl-Friedrich Leowald
发明人： Adolf Habock , Oskar Beckmann , Stefan Frese , Herbert Radda , Franz Mayerhofer , Karl-Friedrich Leowald
CPC分类号： H02M1/088
摘要： The invention concerns a circuit arrangement for the wireless transmission of control signals to the control paths of controlled semiconductor valves, particularly of thyristors, which are preferably usable in a rectifier for high voltage. The control signals are provided for the modulation of a high-frequency transmitter which is disposed at some distance from high frequency receivers each containing a demodulator, whose output signal is delivered to the control path of a semiconductor valve. In order to ensure reliable and interference-proof firing of the semiconductor valves, if the distance between the high-frequency transmitter and the high-frequency receiver is large, there is provided, a frequency-modulated high-frequency transmitter as the high-frequency transmitter. The carrier frequency of the frequency modulated transmitter is in the range of 10 MHz to 50 GHz and has a transmitting antenna provided with a reflector which is directed toward receiving antennas with which the individual high-frequency receivers are equipped. The demodulator contained in each high-frequency receiver comprises a filter which is tuned to the modulation frequency associated with the control signal (p2, p5) which substantially blocks the passage of other frequencies.
摘要翻译： 本发明涉及用于将控制信号无线传输到受控半导体阀，特别是可控硅的控制半导体阀的控制路径的电路装置，其优选地可用于用于高电压的整流器中。 控制信号被提供用于高频发射器的调制，高频发射器设置在距离每个包含解调器的高频接收机一定距离处，该解调器的输出信号被传送到半导体阀的控制路径。 为了确保半导体阀的可靠和抗干扰的点火，如果高频发射机和高频接收机之间的距离大，则提供调频高频发射机作为高频 发射机。 频率调制发射机的载波频率在10MHz至50GHz的范围内，并且具有设置有反射器的发射天线，该反射器指向各个高频接收机配备的接收天线。 包含在每个高频接收机中的解调器包括被调谐到与基本上阻止其它频率通过的控制信号（p2，p5）相关联的调制频率的滤波器。
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3.发明授权Method and apparatus for generating a synchronizing signal for a controlled series compensator 失效用于产生受控串联补偿器的同步信号的方法和装置
公开(公告)号：US5489838A
公开(公告)日：1996-02-06
申请号：US61972
申请日：1993-05-17
CPC分类号： H02J3/1807 , Y02E40/30
摘要： A method and apparatus is described for generating a synchronizing signal for a firing-circuit subassembly to trigger a power converter valve of a controlled series compensator. According to the invention, a sinusoidal substitute variable is provided, which can be either a measured line current or the sum of a capacitor current and a valve current, such that the zero crossings of said substitute variable do not vary. This substitute variable is modified in terms of its phase position so that a synchronizing signal that corresponds to the phase position of the capacitor voltage of the series capacitor of the controlled series compensator is made available to the firing-circuit subassembly. The result, even in the bypassed state, is a sinusoidal synchronizing signal whose zero crossings do not vary, so that operating stability problems no longer occur in the transient state during operation close to resonance.
摘要翻译： 描述了一种用于产生用于触发电路子组件以触发受控串联补偿器的功率转换阀的同步信号的方法和装置。 根据本发明，提供了正弦替代变量，其可以是测量的线电流或电容器电流和阀电流的总和，使得所述替代变量的过零点不变。 该替代变量根据其相位位置被修改，使得对应于受控串联补偿器的串联电容器的电容器电压的相位位置的同步信号可用于点火电路子组件。 即使处于旁路状态，结果也是正交的同步信号，其过零点不变化，从而在接近共振的操作过程中不再发生操作稳定性问题。
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公开(公告)号：US3938026A
公开(公告)日：1976-02-10
申请号：US520849
申请日：1974-11-04
CPC分类号： H02M1/088
摘要： The invention relates to a circuit arrangement for the simultaneous ignition of a plurality of thyristors. Control paths of the thyristors are each connected to a secondary winding of a pulse transformer by way of a separate full-wave rectifier, an alternating current of higher frequency being supplied to the primary winding of the pulse transformer by a control current amplifier. In order to obtain a continuous flow of control current when a control signal is given, it is provided, according to the invention, that there is connected to the control path of each thyristor the series arrangement of a storage reactance coil and an uncontrolled diode poled in the direction of the gate current, and that the output of the full-wave rectifier is connected to this uncontrolled diode.
摘要翻译： 本发明涉及用于同时点燃多个晶闸管的电路装置。 晶闸管的控制路径分别通过单独的全波整流器连接到脉冲变压器的次级绕组，通过控制电流放大器将较高频率的交流电流提供给脉冲变压器的初级绕组。 为了在给出控制信号时获得控制电流的连续流动，根据本发明，根据本发明，连接到每个晶闸管的控制路径，存储电抗线圈和不受控制的二极管的串联布置 在栅极电流的方向上，并且全波整流器的输出端连接到该不受控制的二极管。
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5.发明授权
公开(公告)号：US5053691A
公开(公告)日：1991-10-01
申请号：US482257
申请日：1990-02-20
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。
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公开(公告)号：US4084206A
公开(公告)日：1978-04-11
申请号：US747320
申请日：1976-12-02
IPC分类号： H02H7/12 , H03K17/082 , H02H7/10
CPC分类号： H03K17/0824 , H02H7/12
摘要： A protection circuit for protecting the thyristors of a series circuit of several thyristors, each of which has a corresponding firing circuit to which its anode-cathode voltage is applied. The protection circuit comprises: a plurality of first monitoring means, each of which first monitoring means is associated with and at the potential of a different one of said thyristors, and each of which monitoring means generates a first switching signal when either the current carried by its associated thyristor becomes zero or the voltage across its respective thyristor falls below a predetermined negative value; a plurality of first potential-separating transmission means, each of which first transmission means transmits a different one of said first switching signals; an evaluating means; a plurality of second, potential separating transmission means; a plurality of second monitoring means, each of which second monitoring means is associated with and at the potential of a different one of said thyristors, and each of which second monitoring means generates a second switching signal when the voltage across its associated thyristor exceeds a predetermined positive value; and a plurality of logic circuit means each of which is adapted to feed a signal to the firing circuit associated with a different one of said thyristors when the second switching signal generated by the second monitoring means associated with that one thyristor appears during the timing signal transmitted by the second transmission means associated with that one thyristor.
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公开(公告)号：US3961204A
公开(公告)日：1976-06-01
申请号：US528486
申请日：1974-11-29
CPC分类号： H02M1/096
摘要： The invention concerns a circuit arrangement for firing an electric valve, particularly a thyristor, with a pulse capacitor which can be charged from the a-c voltage at the anode-cathode path of the electric valve by means of an external resistor and can be discharged by means of a contactless switching device for firing the electric valve by way of its control path. To increase the firing performance, there is provided in parallel to the anode-cathode path of the electric valve a series circuit comprising an external resistor and the primary winding of a transformer the secondary winding of which is connected to the pulse capacitor by way of a rectifier.
摘要翻译： 本发明涉及一种用于点燃电动阀，特别是晶闸管的电路装置，其具有脉冲电容器，该脉冲电容器可以通过外部电阻器从电动阀的阳极 - 阴极路径处的交流电压充电，并且可以通过装置 用于通过其控制路径对电动阀进行点火的非接触式开关装置。 为了提高点火性能，与电动阀的阳极 - 阴极路径并联设置串联电路，串联电路包括外部电阻器和变压器的初级绕组，其次级绕组通过一个连接到脉冲电容器 整流器
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8.发明授权Method and apparatus for recognizing defects in a triggering system of a controlled series compensator 失效用于识别受控串联补偿器的触发系统中的缺陷的方法和装置
公开(公告)号：US5384528A
公开(公告)日：1995-01-24
申请号：US63385
申请日：1993-05-18
CPC分类号： H02J3/1807 , H02H7/16 , Y02E40/30
摘要： A method and a device for recognizing defects in a triggering system of a controlled series compensator. An intervention is made in the closed-loop control of the controlled series compensator on the basis of an impedance differential (.DELTA.Z) determined from a setpoint impedance (Z.sub.S1, Z.sub.S2) and from an effective impedance (Z.sub.i) calculated from system variables (i.sub.L,u.sub.C), and in dependence upon the voltage level of a measured conduction current (i.sub.L). When the conduction currents (i.sub.L) are smaller than a limiting value (i.sub.LG), the firing is blocked in the branches, and when the conduction currents (i.sub.L) are greater than a limiting value (i.sub.LG), a firing-angle signal (S.sub..alpha.S) is generated, through which means the valve (Th1, Th2) can be protectively fired. Thus, one is able to recognize defects in the triggering system of the controlled series compensator by applying system variables (i.sub.L,u.sub.c), and this series compensator is able to be brought into such a state that disadvantages are avoided for the network operation, through which means the availability of the system and the quality of the compensation are increased.
摘要翻译： 一种用于识别受控串联补偿器的触发系统中的缺陷的方法和装置。 基于从设定点阻抗（ZS1，ZS2）确定的阻抗差（DELTA Z）和从系统变量（iL）计算出的有效阻抗（Zi），在受控串联补偿器的闭环控制中进行干预 ，uC），并且根据测量的导通电流（iL）的电压电平。 当导通电流（iL）小于限制值（iLG）时，在分支中阻塞点火，并且当导通电流（iL）大于极限值（iLG）时，触发角信号（S αS），通过这种方式，可以保护性地点燃阀门（Th1，Th2）。 因此，通过应用系统变量（iL，uc）能够识别受控串联补偿器的触发系统中的缺陷，并且该串联补偿器能够进入网络操作的缺点，通过 这意味着系统的可用性和补偿的质量有所增加。
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9.发明授权
公开(公告)号：US4063145A
公开(公告)日：1977-12-13
申请号：US683688
申请日：1976-05-06
CPC分类号： H02M1/088
摘要： Apparatus for firing the thyristors or valves in parallel connected first and second valve branches. More particularly, a firing device is provided for providing firing pulses to at least a first valve in the first valve branch. A refiring device is provided which includes a transformer for determining the difference in the current carried by the first valve and a second valve adjacent thereto in the second valve branch. The latter refiring device also comprises a threshold member which, when the current difference determined by the transformer exceeds a predetermined value, causes the one of the first and second valves carrying the lesser current to receive firing pulses.
摘要翻译： 用于并联连接第一和第二阀分支的晶闸管或阀的装置。 更具体地，提供了一种用于向第一阀分支中的至少第一阀提供点火脉冲的点火装置。 提供了一种重新装置，其包括用于确定在第二阀分支中由第一阀承载的电流与其相邻的第二阀的差异的变压器。 后者的再充电装置还包括阈值构件，当由变压器确定的电流差异超过预定值时，导致第一和第二阀中的一个承载较小的电流接收点火脉冲。
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10.发明授权Circuit arrangement for firing a controlled semiconductor valve, particularly a thyristor 失效用于点燃受控半导体阀，特别是晶闸管的电路布置
公开(公告)号：US3987314A
公开(公告)日：1976-10-19
申请号：US528493
申请日：1974-11-29
摘要： The invention concerns a circuit arrangement for firing a controlled semiconductor valve, particularly a thyristor, the control path of which is connected to a d-c voltage source by way of the collector-emitter path of a transistor. In order to obtain a control electrode current at the semiconductor valve, which is independent of the d-c voltage of the d-c voltage source and the control electrode characteristic of the semiconductor valve, provision is made, according to the invention, that a resistor is arranged in series with the collector-emitter path of the transistor, and that a Zener diode is connected between the base of the transistor and that terminal of the resistor which is facing away from the transistor.
摘要翻译： 本发明涉及一种用于点燃受控半导体阀，特别是晶闸管的电路装置，该晶闸管的控制路径通过晶体管的集电极 - 发射极路径与d-c电压源连接。 为了获得与直流电压源的直流电压和半导体阀的控制电极特性无关的半导体阀的控制电极电流，根据本发明，设置电阻器 与晶体管的集电极 - 发射极路径串联，并且齐纳二极管连接在晶体管的基极和电阻器的背离晶体管的端子之间。
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