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1. 发明授权

US4303972A Controlling the circulating current in naturally commutated static power converters 失效
标题翻译：控制自然换向静态功率转换器中的循环电流
公开(公告)号：US4303972A
公开(公告)日：1981-12-01
申请号：US95820
申请日：1979-11-19
申请人： Eric J. Stacey , Donal E. Baker , Charles L. Doughman , Ralph D. Jessee
发明人： Eric J. Stacey , Donal E. Baker , Charles L. Doughman , Ralph D. Jessee
IPC分类号： H02M5/27 , H02P13/30
CPC分类号： H02M5/27
摘要： The firing pulses to the nonload carrying bank only of the naturally commutated thyristor power circuit of a static power converter are retarded to reduce or eliminate the interbank circulating current. In one form of the invention, half wave rectified load current signals are summed with the output waveform reference signal applied to the positive and negative bank firing pulse generators in a sense to retard the pulses in the nonload carrying bank. In another form of the invention, the inversion end stops are used to generate the retarded firing pulses in the nonload carrying bank.
摘要翻译：延迟到静态功率转换器的自然换向晶闸管电源电路的无负载库的点火脉冲，以减少或消除同步循环电流。在本发明的一种形式中，半波整流负载电流信号与施加到正和负组触发脉冲发生器的输出波形参考信号相加，从而阻止无负载载波组中的脉冲。在本发明的另一形式中，使用反转端止动件来产生无载运行组中的延迟点火脉冲。

2. 发明授权

US4307444A Method and apparatus for stabilized integral control of static power frequency changers 失效
标题翻译：静态功率变频器稳定积分控制方法及装置
公开(公告)号：US4307444A
公开(公告)日：1981-12-22
申请号：US95898
申请日：1979-11-19
申请人： Eric J. Stacey , Ralph D. Jessee
发明人： Eric J. Stacey , Ralph D. Jessee
IPC分类号： H02M5/27
CPC分类号： H02M5/271
摘要： Firing signals for the power switches in static power frequency changers are generated by comparing the integral of the output waveform ripple voltage to a repetitively generated stabilizing signal phase locked to, but having a time dependent magnitude independent of, the component waveforms of the output voltage. The stabilizing signal which changes in magnitude in one direction with time is reset to an initial level each time a firing signal is generated.
摘要翻译：通过将输出波形纹波电压的积分与重复产生的稳定信号相位锁相相结合，但与时间相关的幅度与输出电压的分量波形无关，可以产生静态功率变换器中的功率开关的点火信号。每次产生触发信号时，在一个方向随时间变化的稳定信号被重置为初始电平。

3. 发明授权

US5515264A Optimized high power voltage sourced inverter system 失效
标题翻译：优化的高功率电压源逆变器系统
公开(公告)号：US5515264A
公开(公告)日：1996-05-07
申请号：US447034
申请日：1995-05-22
申请人： Eric J. Stacey
发明人： Eric J. Stacey
IPC分类号： H02M7/48 , H02M7/49 , H02M7/5387
CPC分类号： H02M7/49
摘要： A voltage sourced inverter system includes an inverter for coupling to a DC power source and an interphase transformer bank coupled to the inverter. The inverter includes a number of poles for providing discretely displaced voltage waveforms to the interphase transformer bank. A main transformer operably coupled to the interphase transformer bank transforms power therefrom into an AC power output. The interphase transformer bank may be a singular stage or a hierarchial arrangement of plural interphase transformers which combine the discretely displaced voltage waveforms to reduce selected harmonic components therefrom. The inverter may provide notched waveforms to remove additional selected harmonics from the discretely displaced voltage waveforms. A method of inverting DC power into AC power with reduced selected harmonic components is also disclosed.
摘要翻译：电压源逆变器系统包括用于耦合到DC电源的逆变器和耦合到逆变器的相间变压器组。逆变器包括用于向相间变压器组提供离散位移的电压波形的多个极。可操作地耦合到相间变压器组的主变压器将其功率转换成AC功率输出。相间变压器组可以是组合离散位移的电压波形以减少其中的所选谐波分量的多个相间变压器的单级或分层布置。逆变器可以提供带槽波形以从离散位移的电压波形中去除附加的选定谐波。还公开了一种将DC功率转换成具有降低的所选谐波分量的AC电力的方法。

4. 发明授权

US4479160A Band-pass sequence filters for symmetrical components of multiphase AC power systems 失效
标题翻译：多相交流电源系统对称组件的带通序列滤波器
公开(公告)号：US4479160A
公开(公告)日：1984-10-23
申请号：US490697
申请日：1983-05-02
申请人： Eric J. Stacey
发明人： Eric J. Stacey
IPC分类号： G01R29/16 , H03H11/12 , H02H3/26
CPC分类号： H03H11/126 , G01R29/16 , Y10T307/839
摘要： A three-phase symmetrical component active band-pass filter includes three 120.degree. phase shift circuits which are connected in a closed loop fashion such that each phase shift circuit receives an input signal from one phase of an associated power system and a second signal from the output of one of the other phase shift circuits. A voltage tunable filter is formed by using multipliers to couple some fraction of the output of each phase shift circuit to a summing point at the input of another phase shift circuit. Phase comparators and an integrator can be added to achieve a self-tracking tuning arrangement.
摘要翻译：三相对称分量有源带通滤波器包括以闭环方式连接的三个120°相移电路，使得每个相移电路接收来自相关电力系统的一相的输入信号和来自相关电力系统的第二信号其他相移电路之一的输出。通过使用乘法器将每个相移电路的输出的一些部分耦合到另一相移电路的输入端的求和点来形成电压可调谐滤波器。可以添加相位比较器和积分器以实现自跟踪调谐布置。

5. 发明授权

US4309752A Cycloconverter apparatus with controllable end stop firing pulse control means 失效
标题翻译：具有可控停止点火脉冲控制装置的旋转变频器装置
公开(公告)号：US4309752A
公开(公告)日：1982-01-05
申请号：US95803
申请日：1979-11-19
申请人： Eric J. Stacey
发明人： Eric J. Stacey
IPC分类号： H02M5/27 , H02P13/30
CPC分类号： H02M5/272
摘要： In power conversion apparatus such as a naturally commutated cycloconverter for use in converting the output of a variable speed generator to a constant frequency, there is provided an end stop control circuit for ensuring commutation of power switching devices that includes timing wave generators for both rectification and inversion end stops. The timing wave generators are phase locked with the generator outputs but are controllable by end stop bias signal derived from a variable system parameter that may be independent of the source, such as load current to provide prompt protection against converter malfunctions due to excess load currents.Further provided is an excess current detector employing, for each phase, a pair of high slew rate, high current unipolar output op amps connected in a voltage follower configuration with a common pull-up resistor and a common load capacitor to develop a peak current signal representing the greater of the positive and negative peaks of the alternating phase current.
摘要翻译：在诸如用于将变速发电机的输出转换为恒定频率的自然换向循环换流器的功率转换装置中，提供了一种用于确保功率开关装置的换向的终止停止控制电路，其包括用于整流和反转端停。定时波发生器与发生器输出相位锁定，但可由可能独立于源的可变系统参数导出的终止偏置信号控制，例如负载电流，以提供对过载电流引起的转换器故障的及时保护。还提供了一种过电流检测器，对于每个相，采用一对以电压跟随器结构连接的高压摆率，高电流单极性输出运算放大器与公共上拉电阻器和公共负载电容器，以产生峰值电流信号代表交变相电流的正峰值和负峰值越大。

6. 发明授权

US4001670A Static reactive power generating apparatus 失效
标题翻译：静态反应发电设备
公开(公告)号：US4001670A
公开(公告)日：1977-01-04
申请号：US575888
申请日：1975-05-08
申请人： Laszlo Gyugyi , John Rosa , Eric J. Stacey
发明人： Laszlo Gyugyi , John Rosa , Eric J. Stacey
IPC分类号： G05F1/70 , H02J3/18 , H02M5/27
CPC分类号： H02J3/1857 , H02M5/271 , Y02E40/26
摘要： An AC/AC frequency changer operating under a one to one frequency ratio has its input coupled to a power system of same frequency and voltage, with an inductor connected between its output and input terminals. The output voltage is controlled so as to deviate by a predetermined amount from the input voltage so that reactive power flows from the output to the input which, owing to the inherent phase inversion in the frequency changer, causes reactive input current and reactive output current to be summed up directly at the input terminals. As a result, the frequency changer requires only a power rating which is half the reactive power which it can supply to the power system.

7. 发明授权

US5554952A Fast responding method and apparatus for three phase A/C voltage sensing 失效
标题翻译：用于三相A / C电压感测的快速响应方法和装置
公开(公告)号：US5554952A
公开(公告)日：1996-09-10
申请号：US196353
申请日：1994-02-15
申请人： Eric J. Stacey
发明人： Eric J. Stacey
IPC分类号： G01R19/00 , B03C3/68 , G05F1/10 , G06G7/64
CPC分类号： B03C3/68
摘要： An apparatus for generating a sensing signal from a generally periodic multi-phase AC signal is set forth. The apparatus utilizes a plurality of integrator circuits, a single integrator circuit being respectively associated with each phase of the AC signal. The integrator circuits each generate an integrated signal from the respective phase of the AC signal by integrating the respective phase during a time period between sloping transitions of the respective phase. A reset circuit is respectively associated with each integrator circuit for resetting each integrator circuit at the sloping transitions of the respective phase. The integrated outputs are summed by a summing circuit to form the sensing signal.
摘要翻译：提出了一种用于从大体上周期性的多相AC信号产生感测信号的装置。该装置利用多个积分器电路，单个积分器电路分别与AC信号的每个相位相关联。各积分器电路各自通过在各相的倾斜跃迁之间的时间段内对相位进行积分来产生来自AC信号的相位的积分信号。复位电路分别与每个积分器电路相关联，用于在各相的倾斜转变处复位每个积分器电路。集成输出由求和电路相加以形成感测信号。

8. 发明授权

US5337227A Harmonic neutralization of static inverters by successive stagger 失效
标题翻译：静态逆变器谐波中和通过连续错开
公开(公告)号：US5337227A
公开(公告)日：1994-08-09
申请号：US870128
申请日：1992-04-15
申请人： Eric J. Stacey , John Rosa
发明人： Eric J. Stacey , John Rosa
IPC分类号： H02M7/48 , H02M7/49 , H02M1/12
CPC分类号： H02M7/49
摘要： Quasi-harmonic neutralized inverter systems are provided with interphase transformers connected in a waffle tree configuration and each having a pair of inputs for receiving staggered voltage waveforms, wherein the stagger angle of the voltage waveforms reduces a harmonic component of an output voltage on an output terminal of each interphase transformer. Inverters produce voltage waveforms at phase angles necessary to provide the required stagger angles at the inputs of the interphase transformers in a first stage of the waffle tree configuration. A method for quasi-harmonic neutralization of voltages in an inverter system is also provided, in which interphase transformers, each having a pair of inputs for receiving staggered voltage waveforms, are connected in a waffle tree configuration, such that the stagger angle of the voltage waveforms reduces a harmonic component of an output voltage on an output terminal of each interphase transformer. Voltage waveforms at phase angles necessary to provide the stagger angles are applied to the inputs of the interphase transformers in a first stage of the waffle tree configuration.
摘要翻译：准谐波中和逆变器系统设置有以华夫饼树结构连接的相间变压器，每个具有用于接收交错电压波形的一对输入，其中电压波形的交错角度减小输出端子上的输出电压的谐波分量的每个相间变压器。在华夫饼树配置的第一阶段，逆变器产生在相位变压器的输入处提供所需交错角所必需的相位角的电压波形。还提供了一种用于逆变器系统中的电压的准谐波中和的方法，其中每个具有用于接收交错电压波形的一对输入的相间变压器以华夫饼树结构连接，使得电压的交错角波形可以减少每个相间变压器的输出端子上的输出电压的谐波分量。提供交错角所需的相位角的电压波形在华夫饼树配置的第一阶段被施加到相间变压器的输入端。

9. 发明授权

US5168437A Phase displaced, multiple inverter bridge circuits with waveform notching for harmonic elimination 失效
标题翻译：相位偏移，具有波形开槽的多个逆变桥式电路，用于谐波消除
公开(公告)号：US5168437A
公开(公告)日：1992-12-01
申请号：US612647
申请日：1990-11-13
申请人： Laszlo Gyugyi , Eric J. Stacey
发明人： Laszlo Gyugyi , Eric J. Stacey
IPC分类号： H02M7/48 , H02M7/49
CPC分类号： H02M7/49
摘要： An apparatus and method for reducing certain harmonics in the output of static inverters. Static inverters which employ a switching device arranged in a bridge circuit to convert direct current power to alternating current power produce undesired harmonics in the output of the inverter. Harmonic neutralization techniques are further improved by the invention utilizing selective notching of the inverter pole voltage and a coordinate phase shift between the set of pole voltages produced by the individual inverters. The notch angles in the individual pole voltage outputs are chosen to minimize or eliminate specific undesired harmonics.
摘要翻译：一种用于减少静态逆变器输出中的某些谐波的装置和方法。采用布置在桥式电路中以将直流电转换为交流电力的开关装置的静态逆变器在逆变器的输出端产生不需要的谐波。利用本发明利用反相器极电压的选择性切换和由各个逆变器产生的极电压组之间的坐标相移来进一步改进谐波中和技术。选择单个极电压输出中的陷波角以最小化或消除特定的不需要的谐波。

10. 发明授权

US4390938A Cycloconverter apparatus with controllable end stop firing pulse control means 失效
公开(公告)号：US4390938A
公开(公告)日：1983-06-28
申请号：US272597
申请日：1981-06-11
申请人： Eric J. Stacey
发明人： Eric J. Stacey
IPC分类号： H02M5/27 , H02M1/08
CPC分类号： H02M5/272
摘要： In power conversion apparatus such as a naturally commutated cycloconverter for use in converting the output of a variable speed generator to a constant frequency, there is provided an end stop control circuit for ensuring commutation of power switching devices that includes timing wave generators for both rectification and inversion end stops. The timing wave generators are phase locked with the generator outputs but are controllable by end stop bias signal derived from a variable system parameter that may be independent of the source, such as load current to provide prompt protection against converter malfunctions due to excess load currents.Further provided is an excess current detector employing, for each phase, a pair of high slew rate, high current unipolar output op amps connected in a voltage follower configuration with a common pull-up resistor and a common load capacitor to develop a peak current signal representing the greater of the positive and negative peaks of the alternating phase current.

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