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1. 发明授权

US4047097A Apparatus and method for transient free energization and deenergization of static VAR generators 失效
标题翻译：用于静态VAR发生器的瞬态自由通电和断电的装置和方法
公开(公告)号：US4047097A
公开(公告)日：1977-09-06
申请号：US677202
申请日：1976-04-15
申请人： Laszlo Gyugyi , Eric J. Stacey , Michael B. Brennen
发明人： Laszlo Gyugyi , Eric J. Stacey , Michael B. Brennen
IPC分类号： G05F1/70 , H02J3/18
CPC分类号： H02J3/1864 , Y02E40/12
摘要： A static VAR generator is taught for use with a source of electrical power and a rapidly varying load. The static VAR generator comprises thyristor switched inductors connected across a capacitor. The gate of the thyristor switch is fired each half cycle in accordance with a predetermined firing angle to provide sufficient inductive current to cancel a portion of the capacitive current to thus provide a net reactive current for the system served. This is done on a half cycle by half cycle basis. A main disconnect switch is connected in parallel with the series combination of a secondary disconnect switch, a diode and a large resistor. The latter combination is connected in series with the parallel combination of the compensating inductor and the compensating capacitor. The secondary disconnect switch is utilized to charge the capacitor to the peak voltage between lines of the electrical system prior to connecting the static VAR generator to the system or prior to disconnecting the static VAR generator from the system. Prior to a disconnecting or connecting operation an oscillating current is introduced between the compensating capacitor and the compensating inductor. This current is found to have the same frequency phase, wave shape and amplitude as the voltage between the lines to which the static VAR generator is connected. The gate control for the thyristor is utilized to fix the phase difference between the oscillating current and the alternating voltage of the system at or near zero. The oscillating voltage caused by the oscillating current is thus equal in phase, frequency, wave shape and magnitude to the alternating voltage of the system. Consequently the main disconnect switch can be opened or closed as desired with zero electrical potential thereacross.
摘要翻译：教导静态VAR发生器用于电源和快速变化的负载。静态VAR发生器包括连接在电容器上的晶闸管开关电感器。晶闸管开关的栅极根据预定的触发角度每半个周期被烧，以提供足够的感应电流来消除电容电流的一部分，从而为所服务的系统提供净无功电流。这是以半个周期为基础进行的。主断路开关与二次断路开关，二极管和大电阻的串联组合并联。后者的组合与补偿电感器和补偿电容器的并联组合串联连接。在将静态VAR发生器连接到系统之前或者在将静态VAR发生器从系统断开之前，二次断开开关用于将电容器充电到电气系统的线路之间的峰值电压。在断开或连接操作之前，在补偿电容器和补偿电感器之间引入振荡电流。发现该电流具有与静态VAR发生器连接的线路之间的电压相同的频率相位，波形和振幅。晶闸管的栅极控制用于将系统的振荡电流和交流电压之间的相位差固定在零或接近零。振荡电流产生的振荡电压在相位，频率，波形和幅度方面与系统的交流电压相等。因此，主切断开关可根据需要打开或关闭，其中电位为零。

2. 发明授权

US4398141A Static VAR generators 失效
标题翻译：静态VAR发电机
公开(公告)号：US4398141A
公开(公告)日：1983-08-09
申请号：US303299
申请日：1981-09-15
申请人： Michael B. Brennen , Laszlo Gyugyi , Eric J. Stacey
发明人： Michael B. Brennen , Laszlo Gyugyi , Eric J. Stacey
IPC分类号： H02H7/00 , H02J3/18
CPC分类号： H02J3/1864 , Y02E40/12
摘要： There is provided by this invention a static VAR generator having an auxiliary shutdown firing pulse generator that initiates a thyristor controlled inductive current to cancel only capacitive current supplied by the static VAR generator in the event of failure of the VAR generator's control means monitoring the capacitive current requirements.
摘要翻译：本发明提供一种具有辅助关断点火脉冲发生器的静态VAR发生器，其启动晶闸管控制的感应电流，以在VAR发生器的控制装置监测电容电流的故障的情况下仅抵消由静态VAR发生器提供的电容电流要求。

3. 发明授权

US4394614A Static VAR generators 失效
标题翻译：静态VAR发电机
公开(公告)号：US4394614A
公开(公告)日：1983-07-19
申请号：US302349
申请日：1981-09-15
申请人： Michael B. Brennen , Laszlo Gyugyi , Eric J. Stacey
发明人： Michael B. Brennen , Laszlo Gyugyi , Eric J. Stacey
IPC分类号： H02H7/00 , H02J3/18
CPC分类号： H02J3/1864 , Y02E40/12
摘要： There is provided by this invention a static VAR generator having an auxiliary shutdown firing pulse generator that initiates a thyristor controlled inductive current to cancel any capacitive current supplied by the static VAR generator in the event of failure of the VAR generator's control means monitoring the capacitive current requirements.
摘要翻译：本发明提供了一种静态VAR发生器，其具有辅助关断点火脉冲发生器，其启动晶闸管控制的感应电流以消除在VAR发生器的控制装置监测电容电流的故障的情况下由静态VAR发生器提供的任何电容电流要求。

4. 发明授权

US4001671A Apparatus for providing feedback to eliminate a DC component in the output of a static VAR generator 失效
标题翻译：提供反馈消除静态发电机输出中直流分量的装置
公开(公告)号：US4001671A
公开(公告)日：1977-01-04
申请号：US535919
申请日：1974-12-23
申请人： Laszlo Gyugyi , Michael B. Brennen , Eric J. Stacey
发明人： Laszlo Gyugyi , Michael B. Brennen , Eric J. Stacey
IPC分类号： G05F1/70 , H02J3/18
CPC分类号： H02J3/1864 , G05B2219/35012 , G05B2219/35013 , G05B2219/45228 , Y02E40/12 , Y02P90/265
摘要： Apparatus provided for utilization with the control circuit of a static VAR generator to determine the presence of a DC component in the output of the VAR generator which component is not desirable because it may effect certain AC power components such as transformers. There is provided apparatus for determining the presence of the DC component in the VAR generator which utilizes a feedback loop which includes the VAR generator control system as part thereof to insure that the positive and negative half cycles of the VAR generator output current generally remain equal.

5. 发明授权

US4188573A Static VAR generator with time-related-error minimizer 失效
标题翻译：具有时间相关误差最小值的静态VAR发生器
公开(公告)号：US4188573A
公开(公告)日：1980-02-12
申请号：US892804
申请日：1978-04-03
申请人： Laszlo Gyugyi , Michael B. Brennen
发明人： Laszlo Gyugyi , Michael B. Brennen
IPC分类号： G05F1/70 , H02J3/18
CPC分类号： H02J3/1864 , Y02E40/12
摘要： A control circuit for a static VAR generator measures appropriate circuit variables during consecutive half cycles of line voltage. This information is utilized to determine the firing angles of the VAR generator thyristors for providing compensating current to the line for keeping the source current in phase with the source voltage, for balancing source current in three-phase electrical systems and for reducing the line voltage fluctuation. A time-related-error minimizer is provided in the control system of the VAR generator to reduce the deviation between the amount of compensating current which is predicted for proper compensation during a given half cycle and the actual amount of compensating current needed at the time of application. The error is related to the differential between the time of the calculation of the value of current needed and the time it is actually applied. In one case, an open loop-type computational technique is utilized to determine the required inductor current. In a second case, a feedback control for reducing error utilizes the desired or predicted current and the actual inductor current; and in a third case, the compensating error signal is indirectly determined by utilizing the difference between the instantaneous AC terminal voltage and its steady state average value. The error signal associated with the latter case is combined with the computed desired inductor current to reduce time related terminal voltage variations.
摘要翻译：用于静态VAR发生器的控制电路在线电压的连续半周期期间测量适当的电路变量。该信息用于确定VAR发生器晶闸管的触发角，用于向线路提供补偿电流，以保持源电流与源极电压同相，用于平衡三相电气系统中的电流源并减少线路电压波动。在VAR发生器的控制系统中提供时间相关误差最小化器，以减少在给定半周期期间为正确补偿预测的补偿电流量与在给定半周期期间所需的实际补偿电流量之间的偏差应用。误差与计算所需电流值与实际应用时间的差值有关。在一种情况下，采用开环型计算技术来确定所需的电感电流。在第二种情况下，用于减小误差的反馈控制利用期望的或预测的电流和实际的电感器电流; 在第三种情况下，通过利用瞬时AC端子电压与其稳态平均值之间的差异来间接地确定补偿误差信号。与后一种情况相关的误差信号与计算出的所需电感器电流组合以减少与时间相关的端子电压变化。

6. 发明授权

US4172234A Static VAR generator compensating control circuit and method for using same 失效
标题翻译：静态VAR发电机补偿控制电路及其使用方法
公开(公告)号：US4172234A
公开(公告)日：1979-10-23
申请号：US880270
申请日：1978-02-23
申请人： Laszlo Gyugyi , Michael B. Brennen , Thomas H. Putman
发明人： Laszlo Gyugyi , Michael B. Brennen , Thomas H. Putman
IPC分类号： G05F1/70 , H02J3/18
CPC分类号： H02J3/1864 , Y02E40/12
摘要： A control circuit for a static VAR generator measures load power during consecutive half cycles of the source voltage. This information, together with load voltage and load current information is used to determine the firing angles of the VAR generator thyristors for providing compensating current for keeping the source current in phase with the source voltage and for balancing the source currents in a three-phase electrical system. The total computation time for determining the firing angles extends into the half cycle in which correction is to be applied beyond a fixed minimum firing angle.
摘要翻译：用于静态VAR发生器的控制电路在源电压的连续半周期期间测量负载功率。该信息与负载电压和负载电流信息一起用于确定用于提供补偿电流的VAR发生器晶闸管的触发角，以保持源电流与源电压同相并且用于平衡三相电气中的源电流系统。用于确定触发角的总计算时间延伸到半周期，其中校正将被施加超过固定的最小触发角。

7. 发明授权

US4234842A Voltage regulator and flicker compensator 失效
标题翻译：电压调节器和闪烁补偿器
公开(公告)号：US4234842A
公开(公告)日：1980-11-18
申请号：US892556
申请日：1978-04-03
申请人： Michael B. Brennen , Laszlo Gyugyi
发明人： Michael B. Brennen , Laszlo Gyugyi
IPC分类号： G05F1/66 , G05F1/70 , H02J3/16 , H02J3/18
CPC分类号： H02J3/18 , Y02E40/30
摘要： A voltage regulator and flicker compensator is taught which utilizes a simulated light bulb in the feedback control. The simulated light bulb utilizes an analog voltage squaring module the output of which is filtered to reduce the second harmonic of the input signal. An error generator is provided as part of the control loop. The error generator utilizes an adaptive voltage reference which tends to conserve VAR generator capacity. A voltage preconditioner is also utilized which reduces spurious non-flicker transients and the like in the feedback signal.
摘要翻译：教授了一种电压调节器和闪烁补偿器，它在反馈控制中使用了一个模拟的灯泡。模拟灯泡使用模拟电压平方模块，其输出被滤波以减少输入信号的二次谐波。作为控制回路的一部分提供错误发生器。误差发生器利用自适应电压参考，其倾向于节省VAR发电机容量。还利用电压预调节器，其减少反馈信号中的伪非闪烁瞬变等。

8. 发明授权

US5351181A Low cost active power line conditioner 失效
标题翻译：低成本有功电力线路调节器
公开(公告)号：US5351181A
公开(公告)日：1994-09-27
申请号：US30783
申请日：1993-03-12
申请人： Michael B. Brennen , Steven A. Moran , Laszlo Gyugyi
发明人： Michael B. Brennen , Steven A. Moran , Laszlo Gyugyi
IPC分类号： H02H3/52 , G05F1/70 , H02J3/01 , H02J3/18 , H02M1/12
CPC分类号： H02J3/1842 , Y02E40/22
摘要： A novel active power line conditioner is disclosed. The apparatus includes a parallel inverter, with a dc-link, coupled to an output line. The parallel inverter is controlled by a parallel inverter controller which forces the parallel inverter to act as a variable capacitor or inductor. The parallel inverter controller identifies and feeds-forward a desired phase shift value between an active power line conditioner voltage output signal and an active power line conditioner voltage input signal. Utilization of the desired phase shift value results in voltage control of the dc-link of the parallel inverter. The parallel inverter controller also produces a tuning capacitance current reference signal which reduces voltage magnitude errors of the output voltage.
摘要翻译：公开了一种新颖的有源电力线调节器。该装置包括并联逆变器，具有耦合到输出线的直流链路。并联逆变器由并联逆变器控制器控制，该并联逆变器控制器迫使并联逆变器充当可变电容器或电感器。并联逆变器控制器识别并馈送有源电力线调节器电压输出信号和有源电力线调节器电压输入信号之间的期望相移值。利用所需的相移值导致并联逆变器的直流链路的电压控制。并联逆变器控制器还产生调谐电容电流参考信号，其降低输出电压的电压幅度误差。

9. 发明授权

US4743832A Protection system for thyristor-controlled reactors 失效
标题翻译：晶闸管控制反应堆保护系统
公开(公告)号：US4743832A
公开(公告)日：1988-05-10
申请号：US8976
申请日：1987-01-30
申请人： Michael B. Brennen , Laszlo Gyugyi
发明人： Michael B. Brennen , Laszlo Gyugyi
IPC分类号： H02J3/18 , G05F1/70
CPC分类号： H02J3/1864 , Y02E40/12
摘要： To a static VAR generator of the split reactor type, a scaled down model is associated to be controlled concurrently with the static switches of the split reactor and to generate under proportional line voltage a simulated reactive current which is matched with the actual reactive current to detect a flashover across one of the two halves of the split reactor.
摘要翻译：对于分裂电抗器类型的静态VAR发生器，缩小模型与分裂电抗器的静态开关同时控制并且在比例线路电压下产生与实际无功电流匹配的模拟无功电流以检测在分裂反应堆的两个半部之一上闪电。

10. 发明授权

US3999117A Method and control apparatus for static VAR generator and compensator 失效
标题翻译：静态VAR发生器和补偿器的方法和控制装置
公开(公告)号：US3999117A
公开(公告)日：1976-12-21
申请号：US535629
申请日：1974-12-23
申请人： Laszlo Gyugyi , Michael B. Brennen
发明人： Laszlo Gyugyi , Michael B. Brennen
IPC分类号： G05F1/70 , H02J3/18
CPC分类号： H02J3/1864 , Y02E40/12
摘要： A static VAR generator circuit having a control system adapted to utilize the values of three phase load currents to generate time delayed firing angles for thyristor controlled inductors which are utilized with parallel capacitors to provide unity power factor and balanced electrical currents to the AC source. The time delayed firing angles are calculated from integrating furnace load currents over prescribed intervals during real time to thus maintain balanced load current at specified phase angles, usually zero, in the three phase system.
摘要翻译：一种具有控制系统的静态VAR发生器电路，其适于利用三相负载电流的值来产生用于可控硅控制的电感器的时间延迟的触发角，其与并联电容器一起使用以向AC源提供单位功率因数和平衡电流。时间延迟触发角是通过在实时的规定间隔内对炉载荷电流进行积分来计算的，从而在三相系统中以规定的相位角（通常为零）保持平衡负载电流。

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