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1. 发明授权

US5416692A AC power supplying unit with self monitoring of AC out and detection of leakage 失效
标题翻译：交流供电单元，具有自动监控AC输出和检测泄漏
公开(公告)号：US5416692A
公开(公告)日：1995-05-16
申请号：US214010
申请日：1994-03-15
申请人： Motohiro Shimizu , Masashi Nakamura
发明人： Motohiro Shimizu , Masashi Nakamura
IPC分类号： H02H7/122 , H02M1/00 , H02M1/32 , H02M5/45 , H02M7/48 , H02M7/5387 , H02M7/525
CPC分类号： H02M1/32 , H02M7/5387
摘要： An invertor-controlled power unit includes an invertor circuit which performs switching control of direct current output from a direct current power source circuit in response to a driving signal. A bridge balanced circuit is connected to a pair of output lines extending from an output circuit of the power unit. The bridge balanced circuit has at least two balanced points and comprises a plurality of impedance elements connected to the pair of output lines. One of the balanced points is grounded. A potential difference between the one of the balanced points and another of same is detected, and a detection signal indicative of the potential difference is produced. When the detection signal falls outside a predetermined range, i.e. it is determined that a leak occurs, a stoppage instruction signal is produced to stop the supply of the driving signal to the invertor circuit.
摘要翻译：逆变器控制的功率单元包括反相器电路，其响应于驱动信号执行从直流电源电路输出的直流电的切换控制。桥接平衡电路连接到从功率单元的输出电路延伸的一对输出线。桥平衡电路具有至少两个平衡点，并且包括连接到该对输出线的多个阻抗元件。其中一个平衡点是接地的。检测到平衡点中的一个和另一个之间的电位差，产生表示电位差的检测信号。当检测信号超出预定范围时，即确定发生泄漏时，产生停止指令信号以停止向逆变器电路提供驱动信号。

2. 发明授权

US5280419A Method and switching arrangement for regulation of a two-dimensional vector of a segment by means of a value-discrete setting element with a limited switching frequency 失效
标题翻译：用于通过具有有限开关频率的值离散设置元件来调节段的二维向量的方法和切换布置
公开(公告)号：US5280419A
公开(公告)日：1994-01-18
申请号：US858335
申请日：1992-03-26
申请人： Gerald Amler
发明人： Gerald Amler
IPC分类号： H02M5/45 , H02M7/529 , H02P21/00 , H02P27/06 , H02P27/12 , H02M7/525 , H02P5/40
CPC分类号： H02P27/12 , H02M5/4505 , H02M7/529 , H02P21/00
摘要： A method and a switching arrangement are provided for regulating a two-dimensional vector of a controlled system with a discrete value final controlling element having a limited switching frequency. The discrete value final controlling element also has limited number of actual-value vectors. A switching arrangement, such as a microprocessor, receives actual values for the two-dimensional vector as well as a reference vector and selects three actual-value vectors that are adjacent to the reference vector. The switching arrangement generates a reference trajectory which represents a sequence of vector settings for the discrete value final controlling element. A switch from one actual-value vector to another takes place when the distance between the two-dimensional vector and a next corner point of the reference trajectory is at a minimum. The resulting mean value of the generated two-dimensional vector is equal to the reference vector.
摘要翻译：本发明涉及一种用于通过具有有限开关频率的离散值致动元件（8）来控制路径（10,12）的二维向量（us）的方法和电路装置（32） fs）。根据本发明，最初选择由控制路径（10,12）的二维矢量（Us）的期望值（us *，is *）产生的控制变量期望值（ip *），这些控制变量实际值（ipn，ipn + 1，ipn + 2）在一个切换周期（Tges）中以规定的顺序和规定的停留持续时间（Tm，Tm + 1，Tm + 2）交替，使得时间平均第一个向量（us）的值等于其形成的期望轨迹（TR *）的一圈的期望值（us *），并且所选择的控制的下一个向量（ipn + 1，ipn + 2，ipn）然后当位置曲线（TR *）的向量（us）和下一个角点（uso）之间的间隔最小时，可以精确地驱动可变向量三元组。因此，利用给定的有限切换频率（fs），获得与期望值的最小偏差，同时获得对应于期望值的时间平均值和尽可能短的控制响应时间。

3. 发明授权

US4777423A Method for reducing the instantaneous ripple voltage of an electrical drive fed by a current intermediate-circuit frequency converter with phase sequence quenching 失效
标题翻译：一种降低由具有相序淬火的电流中间电路变频器馈送的电驱动的瞬时纹波电压的方法
公开(公告)号：US4777423A
公开(公告)日：1988-10-11
申请号：US102547
申请日：1987-09-29
申请人： Georg Heinle
发明人： Georg Heinle
IPC分类号： H02M7/525 , H02P5/40
CPC分类号： H02M7/525
摘要： A method for reducing the instantaneous voltage ripple of an electrical drive which is fed by a current intermediary circuit frequency converter with phase sequence quenching. During pulsed operation of asynchronous rotating machinery, driven by a current intermediary circuit frequency converter with phase sequence quenching, an interfering instantaneous voltage ripple occurs due to the inverter minimum time required for the completion of a complete commutation. The operating capacity of the inverter is not imparied, even if the switch-on time of individual thyristors falls below the minimum time. Depending on the degree of incomplete commutation occurring in the process, a difference is made beween one of a "first kind" and one of the "second kind" and, in the case of the second kind, the duration of the actual switch-on pulses for maintaining a linear relationship between the current time area and the nominal pulse duration is advantageously adapted through a correction function.
摘要翻译：一种用于减小由具有相序淬火的当前中间电路变频器馈送的电驱动器的瞬时电压纹波的方法。在异步旋转机械的脉冲操作期间，由具有相序淬火的电流中间电路变频器驱动，由于变换器完成整流所需的最短时间，产生干扰瞬时电压纹波。即使各个晶闸管的接通时间低于最小时间，变频器的运行容量也不会受到影响。根据该过程中发生的不完全换向的程度，在“第一种”和“第二种”中的一种之间存在差异，并且在第二种情况下，实际接通的持续时间有利于通过校正功能来适应用于保持当前时间区域和标称脉冲持续时间之间的线性关系的脉冲。

4. 发明授权

US4602199A Control for induction motor drive using load commutated inverter circuit 失效
标题翻译：使用负载换向逆变电路控制感应电机驱动
公开(公告)号：US4602199A
公开(公告)日：1986-07-22
申请号：US705963
申请日：1985-02-26
申请人： Loren H. Walker
发明人： Loren H. Walker
IPC分类号： H02J3/18 , H02M5/45 , H02M7/525 , H02P25/02 , H02P27/06 , H02P5/40
CPC分类号： H02J3/1892 , H02M5/4505 , H02M7/525 , H02P25/024 , H02P27/06 , H02P2201/13 , H02P2207/01
摘要： A system for controlling the operation of an alternating current induction motor having windings supplied by electrical power from the polyphase alternating current source includes a load commutated inverter circuit which is connected between the power source and the induction motor for furnishing electrical power to the motor. Controllers responsive to a command signal and a feedback signal indicative of motor operating parameters control the operation of said load commutated inverter circuit. There is further provided a fixed capacitor circuit connected between the windings of the motor for supplying reactive volt ampheres (VARs) to said load commutated inverter circuit and said motor. Finally, there is provided a variable VAR generator connected between the motor windings for supplying VARs to said load commutated inverter circuit and said motor in response to the output of a third feedback control path which is also responsive to a command signal and prescribed operating parameter(s) of said load and/or said commutated inverter.

5. 发明授权

US4535378A Overcurrent detector for an inverter 失效
标题翻译：变频器过电流检测器
公开(公告)号：US4535378A
公开(公告)日：1985-08-13
申请号：US547588
申请日：1983-11-01
申请人： Tamotu Endo
发明人： Tamotu Endo
IPC分类号： H02H7/122 , H02M7/525
CPC分类号： H02H7/122 , H02M7/525
摘要： An overcurrent detector for an inverter is provided, which detector includes a filter capacitor and snubber circuits, and comprises: a first circuit which detects a current flowing through the DC main circuit of the inverter and provides a first signal in proportion to the magnitude of this current; a second circuit which generates a second signal corresponding to the magnitude of snubber currents flowing through said snubber circuits; and a third circuit which generates a third signal corresponding to the difference between the first signal and the second signal. The third signal is an output signal of the overcurrent detector, a protection circuit of the inverter being made operative by this third signal.
摘要翻译：提供了一种用于逆变器的过电流检测器，该检测器包括滤波电容器和缓冲电路，并且包括：第一电路，其检测流过逆变器的DC主电路的电流，并提供与该幅度的大小成比例的第一信号当前; 第二电路，其产生对应于流过所述缓冲电路的缓冲电流的幅度的第二信号; 以及第三电路，其产生对应于第一信号和第二信号之间的差的第三信号。第三信号是过电流检测器的输出信号，逆变器的保护电路由第三信号进行操作。

6. 发明授权

US4535280A Stabilizing circuit for an inverse rectifier motor control 失效
标题翻译：逆变整流电机控制稳定电路
公开(公告)号：US4535280A
公开(公告)日：1985-08-13
申请号：US594300
申请日：1984-03-28
申请人： Nils-Ole Harvest , Anna Melamed
发明人： Nils-Ole Harvest , Anna Melamed
IPC分类号： H02M5/45 , H02M7/525 , H02M7/539 , H02P27/06 , H02P5/40
CPC分类号： H02P27/06 , H02M5/45 , H02M7/525 , H02M7/539 , H02P27/047
摘要： The invention relates to a stabilizing circuit for an inverse rectifier motor control which includes a D.C. voltage supply having a D.C. voltage regulator followed by a smoothing intermediate circuit. A frequency control circuit converts the supply voltage from the intermediate circuit to a frequency control voltage. Following the frequency control circuit is a generator for converting the frequency control voltage to control signals for the inverse rectifier motor control.
摘要翻译：本发明涉及一种用于逆整流电动机控制的稳定电路，其包括具有直流电压调节器的直流电压源，随后是平滑中间电路。频率控制电路将来自中间电路的电源电压转换成频率控制电压。跟随频率控制电路是用于将频率控制电压转换成用于逆整流电机控制的控制信号的发生器。

7. 发明授权

US4468726A Optically-triggered half-frequency AC converter 失效
标题翻译：光触发式半频交流转换器
公开(公告)号：US4468726A
公开(公告)日：1984-08-28
申请号：US376899
申请日：1982-05-10
申请人： Louis J. L. Daigle , Donald C. Paine , Anthony J. Bednarczyk
发明人： Louis J. L. Daigle , Donald C. Paine , Anthony J. Bednarczyk
IPC分类号： H02M7/525 , H02P27/02 , H02M5/257
CPC分类号： H02M7/525 , H02P27/02 , Y10S323/902
摘要： An optically-triggered converter directly changes the frequency of an incoming voltage waveform to half frequency thereby causing an induction motor, driving a ventilation fan or the like, to operate at half speed. At this lower speed, the induction motor consumes significantly less power. A center-tapped power transformer is used to lower the magnitude of the incoming voltage waveform and a number of optically-triggered thyristor switches are connected between the transformer secondary and the induction motor. The novel trigger circuit includes a synchronous motor connected to receive the input voltage waveforms so that a cylinder attached thereto is rotated in synchronism with the input voltage waveforms. The optically-triggered thyristors are circumferentially positioned about the rotating cylinder and are triggered by a light pulse emerging through an aperture in the cylinder sidewall. The arrangement of the thyristors around the cylinder is selected so that the thyristors are enabled in a predetermined sequence forming fundamental three-phase half-frequency waveforms which are then presented to the induction motor.
摘要翻译：光触发转换器将输入电压波形的频率直接改变为半频，从而使感应电动机，驱动通风扇等以半速运行。在这种较低的速度下，感应电动机的功率明显减少。中心抽头电源变压器用于降低输入电压波形的幅度，并且多个光触发晶闸管开关连接在变压器次级和感应电动机之间。新颖的触发电路包括一个同步电动机，其连接以接收输入电压波形，使得附接到其上的汽缸与输入电压波形同步地旋转。光触发晶闸管围绕旋转圆筒周向定位，并且由通过气缸侧壁中的孔出现的光脉冲触发。选择晶闸管围绕圆柱体的布置，使得晶闸管以预定的顺序启用，形成基本的三相半频波形，然后将其提供给感应电动机。

8. 发明授权

US4301398A Method and apparatus for controlling a resonant power module 失效
标题翻译：用于控制谐振功率模块的方法和装置
公开(公告)号：US4301398A
公开(公告)日：1981-11-17
申请号：US154503
申请日：1980-05-29
申请人： Robert W. Johnson
发明人： Robert W. Johnson
IPC分类号： H02M3/315 , H02M7/525 , H02J7/10
CPC分类号： H02M3/315 , H02M7/525 , Y10S320/13
摘要： A method and apparatus for controlling a resonant power module comprising a resonant power circuit which is coupled to a load. First and second switching elements are coupled to the resonant circuit for alternately supplying a flow of current. Trigger generator means are provided for supplying trigger signals to alternately enable the first and second switching elements. A control means is coupled to the trigger generator for operating the power module in a first mode in which the resonant circuit current is controlled by varying the repetition rate of the trigger signals. The control means operates the power module in a second mode by maintaining the trigger signal repetition rate at a fixed limit and controlling the resonant circuit current by varying the on/off duty cycle of the power module.
摘要翻译：一种用于控制谐振功率模块的方法和装置，包括耦合到负载的谐振功率电路。第一和第二开关元件耦合到谐振电路以交替地供应电流。提供触发发生器装置用于提供触发信号以交替地启用第一和第二开关元件。控制装置耦合到触发发生器，用于以第一模式操作功率模块，其中通过改变触发信号的重复率来控制谐振电路电流。控制装置通过将触发信号重复率保持在固定极限，通过改变功率模块的开/关占空比来控制谐振电路电流，在第二模式下操作功率模块。

9. 发明授权

US4215394A Control logic for an inverter ripple controlled power system 失效
标题翻译：逆变器纹波控制电力系统的控制逻辑
公开(公告)号：US4215394A
公开(公告)日：1980-07-29
申请号：US920482
申请日：1978-06-29
申请人： James H. Galloway , Alby M. Berman
发明人： James H. Galloway , Alby M. Berman
IPC分类号： H04B3/54 , H02J13/00 , H02M1/084 , H02M1/40 , H02M7/523 , H02M7/525 , H02M7/515
CPC分类号： H02M1/40 , H02M1/084 , H02M7/5236 , H02M7/525
摘要： A load management system utilizing a three phase solid state inverter for applying a ripple signal on a high voltage line with the system having means (a) for conducting backfeed current from the line through a portion of the inverter, (b) for balancing the current and phase distribution through an isolation transformer, (c) for selectively sequentially connecting and disconnecting the transmission of the ripple signal from the high voltage line, (d) for providing a wide angle of conduction to assure conduction of the solid state devices over a wide time period to avoid current imbalance and core saturation.
摘要翻译：一种利用三相固态逆变器的负载管理系统，用于在高压线路上施加纹波信号，该系统具有用于从该线路通过逆变器的一部分进行反馈电流的装置（a），（b）用于平衡电流以及通过隔离变压器的相位分配，（c）用于选择性地顺序地连接和断开纹波信号与高压线路的传输，（d）用于提供广角传导以确保固态器件在宽的以避免电流不平衡和磁芯饱和。

10. 发明授权

US4078247A Inverter circuit control circuit for precluding simultaneous conduction of thyristors 失效
标题翻译：用于阻止晶闸管同时导通的逆变电路控制电路
公开(公告)号：US4078247A
公开(公告)日：1978-03-07
申请号：US547127
申请日：1975-02-05
申请人： George Werner Albrecht
发明人： George Werner Albrecht
IPC分类号： H02M7/523 , H02M7/525 , H02M7/515
CPC分类号： H02M7/525 , H02M7/523
摘要： A circuit suitable for use in an induction range. The circuit includes a resonant inverter having first and second gate controlled thyristor switches, the main conduction paths of which are serially connected between the power supply terminals. Trigger pulses for the switches are derived from the current supplied to the inverter load coil. The pulses are timed to prevent the first switch from being closed before the second switch has opened so that both switches can never be conductive at the same time. It also includes circuitry for stopping inverter operation in the event of an overcurrent condition and circuitry for adjusting the inverter output power.
摘要翻译：适用于感应范围的电路。电路包括具有第一和第二栅极控制晶闸管开关的谐振逆变器，其主导通路径串联连接在电源端子之间。用于开关的触发脉冲是从提供给变频器负载线圈的电流得出的。脉冲定时以防止第一开关在第二开关打开之前被关闭，使得两个开关不会同时导通。它还包括用于在过电流状况下停止变频器运行的电路和用于调节逆变器输出功率的电路。

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