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81. 发明授权

US4977359A Servo motor system requiring a reduced number of signal transmission lines 失效
标题翻译：伺服电机系统需要减少数量的信号传输线路
公开(公告)号：US4977359A
公开(公告)日：1990-12-11
申请号：US440694
申请日：1989-11-24
申请人： Kenji Sawai , Tuneto Takeuchi , Jinichi Ito
发明人： Kenji Sawai , Tuneto Takeuchi , Jinichi Ito
IPC分类号： H02P23/00 , H02P25/02
CPC分类号： H02P23/16 , H02P25/03
摘要： In a servo motor system, consisting of a servo motor unit, a servo driver unit, power transmission lines for supplying electric power from the servo driver unit to the servo motor unit, and signal transmission lines for supplying electric signals from the servo motor unit to the servo driver unit, to the end of reducing the number of the signal transmission lines without requiring any particularly high-speed or high-quality signal transmission lines, the servo motor unit comprises a parallel-serial signal conversion circuit for converting outputs from a pole sensor, a rotary encoder, and an abnormal condition sensor into a single serial signal which is transmitted to the servo driver unit via one of the signal transmission lines. The servo driver unit comprise a serial-parallel signal conversion circuit for separating from the serial signal the aforementioned outputs from the various sensors. By suitable logical combination of the parallel signals, the number of bits required for the transmission of the serial signal can be reduced.
摘要翻译：在伺服电动机系统中，由伺服电动机单元，伺服驱动单元，从伺服驱动单元向伺服电动机单元供给电力的输电线，以及用于从伺服电动机单元提供电信号的信号传输线伺服驱动器单元，在不需要任何特别高速或高质量的信号传输线的情况下减少信号传输线的数量的结束，伺服电动机单元包括并行串行信号转换电路，用于将来自极点的输出传感器，旋转编码器和异常状态传感器组成单个串行信号，经由信号传输线路之一传送到伺服驱动单元。伺服驱动器单元包括串行 - 并行信号转换电路，用于从串行信号中分离出各种传感器的上述输出。通过并行信号的合适的逻辑组合，可以减少发送串行信号所需的位数。

82. 发明授权

US4928051A Electric motor 失效
标题翻译：电动马达
公开(公告)号：US4928051A
公开(公告)日：1990-05-22
申请号：US298762
申请日：1989-01-13
申请人： Jozsef Demeter , Tibor Zoltai , Hector D. Navarro
发明人： Jozsef Demeter , Tibor Zoltai , Hector D. Navarro
IPC分类号： H02P8/42 , H02P25/02
CPC分类号： H02P8/42 , H02P25/024
摘要： An electric motor has a rotor and a stator each of which is provided with a polyphase winding. The rotor and stator have the same number of poles but the number of phases in the winding of the rotor differs from that in the winding of the stator. The motor can operate as a stepping motor by deenergizing one of the phases of one winding while simultaneously energizing one of the phases of the other winding, and the motor advances one step whenever one phase of a winding is deenergized and, at the same time, one phase of the other winding is energized. The deenergizing and energizing steps are performed alternately for each winding. The motor can further operate as a synchronous motor by accelerating the motor, discontinuing the deenergizing and energizing steps for one of the windings while maintaining the excitation of such winding and, simultaneously with the discontinuing step, reducing the frequency of the deenergizing and energizing steps for the other winding. The motor can also operate as an induction motor by accelerating the motor and then short-circuiting one of the windings.
摘要翻译：电动机具有转子和定子，每个转子和定子都设有多相绕组。转子和定子具有相同的极数，但是转子的绕组中的相数与定子的绕组中的相位数不同。电动机可以通过对一个绕组中的一个相位断电，同时给另一个绕组的一个相位通电而作为步进电机工作，并且只要绕组的一相被断电，并且电动机前进一步，另一个绕组的一相通电。每个绕组交替执行断电和激励步骤。电动机可以通过加速电动机进一步作为同步电动机进行操作，在保持这种绕组的激励的同时停止绕组中的一个的断电和激励步骤，并且与停止步骤同时降低断电和激励步骤的频率另一个绕组。电动机还可以通过加速电动机并使其中一个绕组短路作为感应电动机。

83. 发明授权

US4914371A Apparatus for controlling AC servo motor 失效
标题翻译：交流伺服电机控制装置
公开(公告)号：US4914371A
公开(公告)日：1990-04-03
申请号：US939875
申请日：1986-12-09
申请人： Nobuho Shibata , Takashi Dohi , Kenichi Ohara
发明人： Nobuho Shibata , Takashi Dohi , Kenichi Ohara
IPC分类号： H02P25/02
CPC分类号： H02P25/03
摘要： In apparatus for controlling the rotational speed of a synchronous motor arranged to be driven by an inverter having switches for selectively energizing respective windings of the motor, a current detector is provided to an input of the inverter for detecting input current to the inverter to thereby interrupt energization of the switches by using an output of a first timer circuit when the current exceeds a predetermined value, and a second timer circuit is provided for interrupting energization of the switches on switching between respective phases of the motor. An interrupting time duration by the second timer circuit may be varied in accordance with the rotational speed of the motor and by the plugging state thereof.
摘要翻译：在用于控制由具有用于选择性地激励电动机的各个绕组的开关的逆变器驱动的同步电动机的转速控制装置中，向逆变器的输入端提供电流检测器，用于检测到逆变器的输入电流，从而中断当电流超过预定值时，通过使用第一定时器电路的输出使开关通电，并且提供第二定时器电路，用于在电动机的各相之间切换时中断开关通电。通过第二定时器电路的中断持续时间可以根据电动机的转速和其堵塞状态而变化。

84. 发明授权

US4833389A Current source inverter control system for load commutated induction motor drive 失效
标题翻译：负载换向感应电机驱动电流源逆变器控制系统
公开(公告)号：US4833389A
公开(公告)日：1989-05-23
申请号：US249737
申请日：1988-09-26
申请人： Leonard J. Kovalsky , Alberto Abbondanti
发明人： Leonard J. Kovalsky , Alberto Abbondanti
IPC分类号： H02M1/00 , H02M1/42 , H02M5/45 , H02M5/458 , H02P25/02
CPC分类号： H02M1/4208 , H02M5/4505 , H02M5/4585 , H02P25/024 , Y02B70/126
摘要： In a load commutated induction motor drive stability is achieved in a runaway situation by generating in response to the motor speed reference signal a signal representative of the desired power factor angle and in using such signal to delay by that much the gating pulses controlling the current-sourced inverter.

85. 发明授权

US4634950A Electric apparatus 失效
公开(公告)号：US4634950A
公开(公告)日：1987-01-06
申请号：US626696
申请日：1984-07-02
申请人： Frederick W. Klatt
发明人： Frederick W. Klatt
IPC分类号： H02P23/00 , H02P5/74 , H02P11/06 , H02P25/02 , H02P5/34
CPC分类号： H02P5/74 , H02P25/024
摘要： An electric machine which is adapted to function as a motor or generator without any major electrical or mechanical modifications and conforms to conventional electric machine manufacturing practices. This machine has associated therewith, microprocessor controls. There is provided two balanced phase synchronous electrical machines whose moving windings are attached to a common carrier and whose stationary windings are attached to a common body. One of the two balanced phase electric machines is electrically and mechanically designed to be a balanced phase synchronous power motor or power generator at the utility frequency while the other balanced phase electric machine is electrically and mechanically designed for a higher frequency. The high frequency electric machine is driven by a modulated high frequency signal whose modulation frequency is equal to the utility frequency. The resulting signal transformed on to the moving windings of the high frequency electric machine, which now includes the velocity and displacement frequency component of the common carrier, drives the moving windings of the power motor or generator electric machine after it is demodulated of its high frequency component. As a result, the developed magnetic field on the moving windings of the power motor or generator electric machine will always be synchronized to the magnetic field developed on the stationary windings of the power motor or generator electric machine.Inherent in the invention is a means to convert mechanical displacement and velocity into an electrical signal. A transducer or any combination of transducers which propagates energy using an electric field, a magnetic field, an electromagnetic field, or a light field implements the communication between the moving apparatus and stationary apparatus without electrical wires connected between them. As a result, by controlling the phase, amplitude, and frequency of the modulation signal with the microprocessor controls, numerous motor and generator functions can be achieved. The principles described herein also apply to electric linear machines appropriately resulting in designating the electric machine of this invention as the Advanced Programmable Electric Motion Machine or APEMM.

86. 发明授权

US4608527A Phase advance waveform generator for brushless DC actuator system controller 失效
标题翻译：无刷直流驱动系统控制器的相位超前波形发生器
公开(公告)号：US4608527A
公开(公告)日：1986-08-26
申请号：US451642
申请日：1982-12-20
申请人： Timothy F. Glennon , Jayant G. Vaidya
发明人： Timothy F. Glennon , Jayant G. Vaidya
IPC分类号： G05D1/00 , G05D3/14 , H02P6/06 , H02P6/14 , H02P25/02 , H02P5/40
CPC分类号： H02P6/06 , G05D3/1418 , H02P25/03 , H02P6/153
摘要： This invention relates to a motor control circuit for a permanent magnet motor having a rotor and motor windings. A motor winding transformer circuit is coupled to motor windings and provides an output signal representative of the magnitude and direction of the real current present in the motor windings. A rotor speed/position sensing circuit provides an output signal representative of the motor speed and direction.
摘要翻译：本发明涉及一种具有转子和电动机绕组的永磁电动机的电动机控制电路。电动机绕组变压器电路耦合到电动机绕组，并提供表示电动机绕组中存在的实际电流的大小和方向的输出信号。转子速度/位置检测电路提供代表电机速度和方向的输出信号。

87. 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.

88. 发明授权

US4540925A Control system for electric motor 失效
标题翻译：电动机控制系统
公开(公告)号：US4540925A
公开(公告)日：1985-09-10
申请号：US632315
申请日：1984-07-19
申请人： Donald H. Jones
发明人： Donald H. Jones
IPC分类号： G05B19/23 , G05B19/35 , H02P25/02
CPC分类号： G05B19/353 , G05B19/237 , H02P25/024 , G05B2219/37313
摘要： The motor control system for an electric motor having no mechanical means integral therewith for commutating current provides the ability to control position, velocity and torque of such a motor to the degree achievable with DC motors having mechanical commutators. Such a result is achieved by maintaining a desired spatial relationship between the resultant magnetic field created by the stationary member and the movable member of the electric motor. The control system includes detecting apparatus for detecting parameters of the motor that dictate, in part, the desired spatial relationship within the motor and command apparatus for creating a motor command signal which, when generated in the motor, causes the desired spatial relationship to be established. The present invention also permits maintenance of an optimal spatial relation--a spatial relationship that causes the motor to produce desired torque with a minimum excitation.
摘要翻译：用于不具有与其整流的机械装置的电动机的电动机控制系统提供了将这种电动机的位置，速度和转矩控制到具有机械换向器的直流电动机可实现的程度的能力。通过保持由固定构件产生的合成磁场和电动机的可动构件之间的期望的空间关系来实现这样的结果。控制系统包括用于检测电动机的参数的检测装置，该装置部分地指示电动机和指令装置内的期望的空间关系，用于产生电动机命令信号，该电动机命令信号当在电动机中产生时，使得建立所需的空间关系。本发明还允许维持最佳的空间关系 - 使得电动机产生具有最小激励的期望转矩的空间关系。

89. 发明授权

US4536692A Circuit for energizing and controlling a synchronous rotary machine operating at variable speed 失效
标题翻译：用于激励和控制以可变速度运行的同步旋转机器的电路
公开(公告)号：US4536692A
公开(公告)日：1985-08-20
申请号：US622400
申请日：1984-06-21
申请人： Henri Godfroid
发明人： Henri Godfroid
IPC分类号： H02M7/757 , H02P25/02 , H02P5/40
CPC分类号： H02M7/757 , H02P25/024 , H02P2201/13
摘要： A circuit for energizing and controlling a synchronous rotary machine which operates at variable speed and is fed by controlled static switches, wherein the stator of the rotating machine has a plurality n of polyphase windings where n is at least equal to two, each polyphase winding being fed by a static AC-AC converter (A, B) which constitutes an autosychronous inverter having a mains bridge (PRA, PRB) and a machine bridge (PMA, PMB) connected to each other by first and second DC conductors, and wherein the circuit has means for controlling the mains bridge of each converter in such a way that the sum of the DC currents (IA+IB) in said conductors of all the converters is proportional to a reference average current value.
摘要翻译：一种用于激励和控制以可变速度操作并由受控静态开关馈送的同步旋转机械的电路，其中旋转机器的定子具有多个n个多相绕组，其中n至少等于2，每个多相绕组为由构成具有由第一和第二直流导体彼此连接的电源桥（PRA，PRB）和机桥（PMA，PMB）的自动同步逆变器的静态AC-AC转换器（A，B）馈送，并且其中电路具有用于以这样的方式控制每个转换器的电源桥的装置，使得所有转换器的所述导体中的直流电流（IA + IB）之和与参考平均电流值成比例。

90. 发明授权

US4511834A Control and stabilizing system for damperless synchronous motor 失效
标题翻译：无阻尼同步电机控制稳定系统
公开(公告)号：US4511834A
公开(公告)日：1985-04-16
申请号：US452559
申请日：1982-12-23
申请人： George H. Studtmann
发明人： George H. Studtmann
IPC分类号： H02P27/06 , H02M5/45 , H02P25/02 , H02P7/42
CPC分类号： H02M5/4505 , H02P25/024
摘要： Stabilized operation of a damperless synchronous motor, which is driven by a voltage source inverter energized by a d-c bus voltage, is obtained under transient conditions, such as during sudden variations of load torque, in order to maintain the torque angle in the motor relatively stable at all times and within the stability limit. This is achieved by employing transient changes in either the d-c bus voltage, the d-c bus current or the motor voltage, which changes reflect transient variations of the torque angle, to rapidly adjust the inverter frequency as necessary to hold the torque angle reasonably constant. For example, if there is an abrupt load increase on the motor, the bus voltage tends to drop and the motor tends to slow down, the torque angle thereby tending to increase. The extent to which the angle tends to increase will, however, be rapidly reduced by dynamically decreasing the inverter frequency so that the rotating magnetic flux or mmf, produced by the stator windings of the motor, slows down to preserve the desired torque angle. When there is a normal variation in load demand, necessitating a different steady state motor speed, a set point voltage may be varied to change the amplitude and frequency of the inverter output voltage to the steady state levels needed to drive the motor at the new required speed.
摘要翻译：在瞬时条件下，例如在负载转矩的突然变化期间，获得由由直流总线电压供电的电压源逆变器驱动的无阻尼同步电动机的稳定操作，以保持电动机中的转矩角度相对稳定在任何时候和稳定的极限。这通过在d-c总线电压，d-c总线电流或电机电压中的瞬态变化来实现，其改变反映扭矩角的瞬态变化，以便在必要时快速调节逆变器频率以保持转矩角度合理地恒定。例如，如果电机上的负载急剧上升，总线电压会下降，电机趋于减速，转矩角度趋向于增加。然而，通过动态地减小逆变器频率，使得由电动机的定子绕组产生的旋转磁通量或mmf减慢，以保持期望的扭矩角度，角度趋于增加的程度将被快速降低。当负载需求正常变化时，需要不同的稳态电机速度，可以改变设定点电压，以将变频器输出电压的幅度和频率改变到以新的要求驱动电动机所需的稳态电平速度。

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