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    • 1. 发明授权
    • Excitation control system and method employing de-excitation trip logic
    • 励磁控制系统和采用去激励跳闸逻辑的方法
    • US06704214B1
    • 2004-03-09
    • US10370212
    • 2003-02-19
    • Irving A. GibbsCharles R. Mummert
    • Irving A. GibbsCharles R. Mummert
    • H02H7125
    • H02P9/14
    • An excitation control system includes a circuit breaker, a bridge and a controller. The bridge converts AC phases from the breaker to an excitation voltage. The controller includes an output to open the breaker, a first sub-system inputting voltages corresponding to the AC phases and outputting a sensed voltage, and a second sub-system inputting the excitation voltage and outputting a sensed excitation voltage. A first function detects a trip signal and responsively outputs firing signals to the bridge to provide a negative excitation voltage. A second function determines if a threshold is greater than the sensed voltage and if the trip signal is asserted, and responsively asserts the output to open the breaker. A third function determines if the trip signal is asserted and responsively delays for a predetermined time, unless a negative threshold is greater than the sensed excitation voltage, and after the predetermined time responsively asserts the output.
    • 励磁控制系统包括断路器,桥和控制器。 桥将交流相从断路器转换为励磁电压。 控制器包括用于打开断路器的输出,第一子系统输入对应于AC相的电压并输出感测电压,以及第二子系统输入激励电压并输出感测的激励电压。 第一功能检测跳闸信号并且响应地将触发信号输出到桥以提供负激励电压。 第二功能确定阈值是否大于检测到的电压,并且如果跳闸信号被断言,并且响应地断言输出以断开断路器。 第三功能确定跳闸信号是否被断言并且响应地延迟预定时间,除非负阈值大于感测到的激励电压,并且在预定时间响应地确定输出之后。
    • 2. 发明授权
    • Excitation control system
    • 励磁控制系统
    • US06232751B1
    • 2001-05-15
    • US09458525
    • 1999-12-13
    • Lawrence B. FarrIrving A. GibbsCharles A. MorseCharles R. Mummert
    • Lawrence B. FarrIrving A. GibbsCharles A. MorseCharles R. Mummert
    • H02P910
    • H02P9/10H02H1/04H02H7/06
    • An excitation control system for a generator includes an SCR bridge for providing an excitation voltage to the input of the generator; a regulator for regulating the excitation voltage; and a sensing sub-system for providing an electrical signal, such a generator current or generator watts, which is related to the output of the generator. The generator includes a circuit breaker for the one or more alternating current phases output by the generator. An output of the circuit breaker has a signal with a true state when the circuit breaker is closed and the generator is on-line and with a false state when the circuit breaker is open and the generator is off-line. A comparator provides a validation signal when the generator electrical signal is greater than a predetermined signal, such as minimum generator current or minimum generator watts, respectively. An OR gate qualifies the signal of the output of the circuit breaker with the validation signal and provides a qualified signal therefrom. Trip and protection logic employs the qualified signal for protecting or tripping the generator.
    • 用于发电机的励磁控制系统包括用于向发电机的输入提供激励电压的SCR桥; 用于调节励磁电压的调节器; 以及用于提供与发生器的输出相关的电信号(例如发电机电流或发电机瓦特)的感测子系统。 发电机包括用于由发电机输出的一个或多个交流相的断路器。 当断路器闭合并且发电机在线并且当断路器断开并且发电机离线时,断路器的输出具有具有真实状态的信号。 当发电机电信号分别大于预定信号(例如最小发电机电流或最小发电机瓦特)时,比较器提供验证信号。 “或”门将断路器的输出信号与验证信号相符合,并提供合格的信号。 跳闸和保护逻辑使用合格的信号来保护或跳闸发电机。
    • 3. 发明授权
    • Excitation system having inner loop voltage regulator with by-pass capability
    • 励磁系统具有内循环电压调节器,具有旁通功能
    • US07365519B2
    • 2008-04-29
    • US11100368
    • 2005-04-06
    • Irving A. GibbsCharles R. Mummert
    • Irving A. GibbsCharles R. Mummert
    • H02P9/10
    • H02P9/30H02P9/10
    • An excitation system that includes an exciter for generating a field voltage for a rotor, a first automatic voltage regulator and a second automatic voltage regulator. The first regulator receives an output voltage of the power generation system as an input, and the second regulator receives the field voltage as an input. An output of the first regulator is provided as a second input to the second regulator. The first regulator is in selective electrical communication with the exciter through a first line conductor having first separable contacts such that an output of the first regulator may be selectively provided as an input to the exciter. The second regulator is in selective electrical communication with the exciter through a second line conductor having second separable contacts such that an output of the second regulator may be selectively provided as an input to the exciter.
    • 励磁系统,其包括用于产生用于转子的励磁电压的激励器,第一自动电压调节器和第二自动电压调节器。 第一调节器接收作为输入的发电系统的输出电压,第二调节器接收场电压作为输入。 提供第一调节器的输出作为第二调节器的第二输入。 第一调节器通过具有第一可分离触点的第一线路导体与激励器选择性地电连通,使得可以选择性地将第一调节器的输出作为输入提供给励磁机。 第二调节器通过具有第二可分离触点的第二线路导体与激励器选择性地电连通,使得可以选择性地将第二调节器的输出作为输入提供给励磁机。
    • 4. 发明授权
    • Power system stabilizer providing excitation limiter functions
    • 电力系统稳定器提供励磁限制器功能
    • US07345456B2
    • 2008-03-18
    • US11041595
    • 2005-01-24
    • Irving A. GibbsCharles R. Mummert
    • Irving A. GibbsCharles R. Mummert
    • H02P9/10
    • H02P9/105H02H7/065
    • A stabilizer and synchronous electric power generator system using same that provides both power system damping and excitation limiter functionality. The stabilizer includes a processing unit and a memory storing routines executable by the processing unit. The routines are adapted to receive a voltage signal indicative of a voltage and a current signal indicative of a current output by the generator system, generate, utilizing the voltage and current signals, a power system stabilizer signal for damping oscillations and one or more excitation limiter function signals for controlling excitation level. The routines are also adapted to generate a feedback signal for the generator system by combining the power system stabilizer signal and one or more of the one or more excitation limiter function signals.
    • 一种使用其的稳定器和同步发电机系统,其提供电力系统阻尼和励磁限制器功能。 稳定器包括处理单元和可由处理单元执行的存储器存储例程。 该程序适于接收指示电压的电压信号和指示发电机系统的电流输出的电流信号,利用电压和电流信号产生用于阻尼振荡的电力系统稳定器信号和一个或多个励磁限制器 用于控制激励电平的功能信号。 这些例程还适于通过组合电力系统稳定器信号和一个或多个激励限制器功能信号中的一个或多个来产生用于发电机系统的反馈信号。
    • 5. 发明授权
    • Controlled rectifier bridge and system
    • 可控整流桥和系统
    • US06046917A
    • 2000-04-04
    • US304480
    • 1999-05-03
    • Irving A. GibbsBruce R. Quayle
    • Irving A. GibbsBruce R. Quayle
    • H02M1/00H02M1/32H02M7/155H02M5/458
    • H02M1/32H02M7/1555
    • A controlled rectifier or SCR bridge converts a plurality of alternating current voltages from a plurality of alternating current phases to a rectified voltage. The bridge includes an input interconnected with the alternating current phases and an output having the rectified voltage. The bridge has a segment for each of the positive and negative polarities of the alternating current phases. Each of the segments has an SCR responsive to a control signal in order to control current conduction within the segment between the input and the output of the bridge. A phase control circuit outputs some of the control signals to some of the segments in order to control current conduction within the segments. A phase lock loop or startup circuit detects an abnormal condition of the AC voltages of the alternating current phases. A force firing circuit repetitively and simultaneously outputs all of the control signals to the segments in response to the abnormal AC phase conditions in order that the SCR bridge emulates a diode bridge.
    • 可控整流器或SCR桥将多个交流电压从多个交流相转换成整流电压。 该桥包括与交流电相互连接的输入和具有整流电压的输出。 该桥具有用于交流电相的正负极性中的每一个的段。 每个段具有响应于控制信号的SCR,以便控制在桥的输入和输出之间的段内的电流传导。 相位控制电路将一些控制信号输出到一些段以便控制段内的电流传导。 锁相环或启动电路检测交流电相的交流电压的异常情况。 强制启动电路响应于异常AC相位条件重复并同时将所有控制信号输出到段,以便SCR桥仿真二极管桥。
    • 8. 发明授权
    • Voltage source inverter and medium voltage pre-charge circuit therefor
    • 电压源逆变器和中压预充电电路
    • US07965529B2
    • 2011-06-21
    • US12119952
    • 2008-05-13
    • Irving A. GibbsAndrew C. Stevenson
    • Irving A. GibbsAndrew C. Stevenson
    • H02M7/537H02J3/36G05F1/13
    • H02M7/062
    • A medium voltage adjustable frequency drive includes an input isolation transformer having a three-phase input and a three-phase output, a converter having a three-phase input electrically connected to the three-phase output of the input isolation transformer and an output providing a direct current bus, an inverter having an input electrically connected to the output of the converter and a three-phase output, and a pre-charge circuit. The pre-charge circuit includes a ferro-resonant transformer circuit having a primary winding structured to input a low voltage and a secondary winding structured to output a medium voltage and provide a constant current source. The pre-charge circuit also includes a medium voltage diode bridge having an input receiving the medium voltage from the secondary winding of the ferro-resonant transformer circuit and an output structured to provide the constant current source to the direct current bus.
    • 中压可变频驱动器包括具有三相输入和三相输出的输入隔离变压器,具有电连接到输入隔离变压器的三相输出的三相输入的转换器和提供一个 直流母线,具有与转换器的输出电连接的输入和三相输出的逆变器以及预充电电路。 预充电电路包括具有构造成输入低电压的初级绕组和构造成输出中等电压并提供恒定电流源的次级绕组的铁谐振变压器电路。 预充电电路还包括中压二极管电桥,其具有接收来自铁共振变压器电路的次级绕组的中等电压的输入端和被构造为向恒流总线提供恒定电流源的输出。
    • 9. 发明授权
    • Control system and method employing active temperature balance for controlling rectifier bridge
    • 采用有源温度平衡控制整流桥的控制系统和方法
    • US06724643B1
    • 2004-04-20
    • US10325246
    • 2002-12-20
    • Irving A. Gibbs
    • Irving A. Gibbs
    • H02H7125
    • H02H7/1206
    • A method for controlling a parallel array of rectifier bridges includes outputting control signals to repetitively fire bridge elements; skipping repetitive firing of the elements for one out of plural counts; sensing temperatures of the elements; averaging some of the sensed temperatures to provide a corresponding average temperature for each of the parallel bridge elements; comparing one of the sensed temperatures to the corresponding average temperature; increasing the counts when the sensed temperature of one of the elements is less than the corresponding average temperature, or decreasing the counts when the sensed temperature of the one of the elements is greater than the corresponding average temperature; and setting the counts to a first predetermined value when the sensed temperature of the one of the elements is greater than a second predetermined value above the corresponding average temperature.
    • 一种用于控制整流桥并联阵列的方法包括输出控制信号以重复地发射桥元件; 跳过复数个元素的重复点火; 检测元件的温度; 平均感测温度中的一些以为每个平行桥接元件提供相应的平均温度; 将所感测的温度之一与相应的平均温度进行比较; 当一个元件的感测温度小于相应的平均温度时增加计数,或当所检测到的元件之一的温度大于对应的平均温度时减小计数; 以及当所述元件中的一个元件的感测温度大于高于相应平均温度的第二预定值时,将所述计数设置为第一预定值。