公开(公告)号：US4703245A

公开(公告)日：1987-10-27

申请号：US811840

申请日：1985-12-12

申请人： Keiji Sakamoto ,  Toshio Kobayashi

发明人： Keiji Sakamoto ,  Toshio Kobayashi

IPC分类号： H02P27/06 ,  H02P6/06 ,  H02P25/02 ,  H02P5/40

CPC分类号： H02P25/03 ,  H02P25/024

摘要： A method and apparatus for controlling a permanent magnet synchronous motor (M), wherein an inverter (4) is controlled in response to PWM signals (PA-PF) obtained by comparing a reference carrier wave (VA) with signals representing differences between armature winding current command signals (RTC, STC, TTC) of the respective phases and detected armature currents (IR, IS, IT).The degree of saturation of the difference signals defined in association with a peak value of the reference carrier wave (VA) is detected. The phases of the current command signals (RTC, STC, TTC) are changed from those which provide an orthogonal relation between a resultant armature current and a main flux of a magnetic field.

摘要翻译： PCT No.PCT / JP85 / 00207 Sec。 371日期1985年12月12日第 102（e）1985年12月12日日期PCT提交1985年4月16日PCT公布。 出版物WO85 / 04993 日期：1985年11月7日。一种用于控制永磁同步电动机（M）的方法和装置，其中响应通过比较参考载波（VA）获得的PWM信号（PA-PF）来控制逆变器（4） 信号表示各相的电枢绕组电流指令信号（RTC，STC，TTC）与检测到的电枢电流（IR，IS，IT）之间的差异。 检测与参考载波（VA）的峰值相关联地定义的差分信号的饱和度。 电流指令信号（RTC，STC，TTC）的相位从提供所得到的电枢电流和磁场的主通量之间的正交关系的相位改变。

公开(公告)号：US4677360A

公开(公告)日：1987-06-30

申请号：US839203

申请日：1986-03-13

申请人： Luis J. Garces

发明人： Luis J. Garces

IPC分类号： H02P21/08 ,  H02P5/40

CPC分类号： H02P21/09

摘要： A speed control using decoupled flux and torque commands obtains constant horsepower operation by modifying the slip according to the torque requirements. The slip is modified by a value representative of the torque producing current. Control is kept in the torque command and the slip command with the field producing command free to change according to the motor speed, voltage available and the rotor time constant.

摘要翻译： 使用去耦磁通和转矩指令的速度控制通过根据转矩要求修改滑差来获得恒定的马力运行。 滑差由表示扭矩产生电流的值修改。 控制保持在转矩指令中，滑动指令随着电机转速，电压可用和转子时间常数自由改变。

公开(公告)号：US4673858A

公开(公告)日：1987-06-16

申请号：US743364

申请日：1985-06-11

申请人： Suzuo Saito

发明人： Suzuo Saito

IPC分类号： H02P27/04 ,  H02P21/00 ,  H02P27/08 ,  H02P5/40

CPC分类号： H02P27/08 ,  H02P27/047 ,  H02P29/025

摘要： A power converter for driving an AC motor includes a main circuit and a control circuit such that: the main circuit includes a forward conversion circuit that forwardly converts AC power from an input AC power source into DC power, and an inverter circuit that inversely converts the thus forwardly converted and smoothed DC power into AC power of a specified voltage and frequency; the control circuit includes a calculation device that calculates a torque current component of the AC motor, a detection device that detects occurrence of an instantaneous interruption in the AC power source, a command device that commands a frequency to be fed into the AC motor, a control device that receives a signal relative to an output signal of the command device so as to control a terminal voltage of the AC motor, and a compensation device that adjusts the output signal of the command device so that the output signal of the calculation device is caused to be substantialloy zero in response to the output signal of the detection device.

摘要翻译： 用于驱动AC电动机的电力转换器包括主电路和控制电路，使得主电路包括正向转换电路，其将来自输入AC电源的AC电力正向转换为DC电力;以及逆变器电路，其将 从而将直流电转换和平滑化成指定电压和频率的交流电; 所述控制电路包括计算所述交流电动机的转矩电流分量的计算装置，检测所述交流电源中的瞬时中断的发生的检测装置，指示进入所述交流电动机的频率的指令装置， 控制装置，其接收相对于所述指令装置的输出信号的信号，以控制所述AC电动机的端子电压;以及补偿装置，其调整所述指令装置的输出信号，使得所述计算装置的输出信号为 响应于检测装置的输出信号而导致基本为零。

公开(公告)号：US4672286A

公开(公告)日：1987-06-09

申请号：US793099

申请日：1985-10-29

申请人： Barry W. Williams

发明人： Barry W. Williams

IPC分类号： H02P27/06 ,  H02P23/00 ,  H02P5/40

CPC分类号： H02P27/047 ,  H02P23/28

摘要： A drive circuit for a three-phase induction motor comprises an inverter bridge consisting of six bridge switches, and a logic speed controller which controls switching of the inverter bridge in dependence on the motor current as sensed by a total current sense resistor. The speed controller is arranged to switch the bridge switches so as to supply alternating current to each phase of the motor at a fundamental frequency which may be varied in accordacne with the required motor speed. However, additionally, at least during low speed operation, the speed controller switches at least three of the bridge switches at high frequency during each cycle of the fundamental frequency switching. In this case the switching points are not predetermined but rather occur when the current as sensed by the resistor reaches a preset limit for switch turn-off and when the current falls to a specified point for turn-on. Such a circuit can be realized simply and enables the motor to be driven at a range of speeds.

摘要翻译： 用于三相感应电动机的驱动电路包括由六个桥式开关组成的逆变桥，以及逻辑速度控制器，其根据由总电流检测电阻感测的电动机电流来控制逆变桥的开关。 速度控制器被布置成切换桥式开关，以便以基本频率向马达的每相提供交流电，该基频可以根据所需的电机速度而变化。 然而，另外，至少在低速运行时，速度控制器在基频切换的每个周期期间以高频切换至少三个桥式开关。 在这种情况下，切换点不是预定的，而是当由电阻器检测到的电流达到开关关断的预设极限以及当电流下降到指定点开启时发生。 这样的电路可以简单地实现，并且能够以一定速度驱动电动机。

公开(公告)号：US4670698A

公开(公告)日：1987-06-02

申请号：US557637

申请日：1983-12-02

申请人： Donald E. Fulton ,  William P. Curtiss ,  Jonathan R. Leehey

发明人： Donald E. Fulton ,  William P. Curtiss ,  Jonathan R. Leehey

IPC分类号： G01R31/34 ,  H02P21/14 ,  H02P5/40 ,  G01R27/00

CPC分类号： G01R31/343 ,  H02P21/09 ,  H02P21/16 ,  H02P2207/01

摘要： A method of measuring induction motor parameters so that the speed and torque control of an induction motor controller may be optimized. While the motor is stopped, a test signal made up of a current pulse of a known amplitude is applied to one or more windings of the motor stator for a selected period of time, after which the current pulse is turned off. After a short delay, the instanteous voltage across the stator windings is measured, and also an integration of the stator voltage is started which continues long enough so that the stator voltage decays to substantially zero. The measured voltage and integrated voltage are respectively proportional to the rotor resistance and the motor magnetizing inductance.

摘要翻译： 一种测量感应电动机参数的方法，以便可以优化感应电动机控制器的速度和转矩控制。 当电动机停止时，将由已知幅度的电流脉冲构成的测试信号施加到电动机定子的一个或多个绕组一段选定的时间段，之后电流脉冲被关断。 在短暂的延迟之后，测量定子绕组两端的瞬时电压，并且开始定子电压的积分，其持续足够长的时间，使得定子电压基本为零衰减。 测量电压和积分电压分别与转子电阻和电机励磁电感成正比。

公开(公告)号：US4642546A

公开(公告)日：1987-02-10

申请号：US671906

申请日：1984-11-16

申请人： Andreas Schonherr

发明人： Andreas Schonherr

IPC分类号： H02P27/06 ,  H02M5/45 ,  H02P5/40

CPC分类号： H02M5/4505 ,  H02P29/025

摘要： In order to maintain the flux in an asynchronous machine supplied by an intermediate-link converter in the event of a network disturbance, the converter is initially blocked at the beginning of the network disturbance. After the intermediate-link current has decayed, the timing of the free-running converter on the machine side and the ignition of two series-connected controlled rectifiers of the converter on the network side are effected. The flux still present in the machine induces in the stator circuit closed in this manner a machine current which is controlled by a supplemental current controller in an operation slightly on the generator side, whereby, at the expense of the kinetic energy of the synchronized machine, a current through the circuit is generated which is required for covering the dielectric losses and for maintaining the desired flux.

摘要翻译： 为了在发生网络干扰的情况下保持由中间链路转换器提供的异步电机中的磁通，转换器最初在网络干扰开始时被阻塞。 在中间链路电流衰减之后，机器侧的自由运行转换器的定时和网络侧的转换器的两个串联的受控整流器的点火实现。 仍然存在于机器中的通量引起定子电路以这种方式闭合机械电流，该电机在稍微在发电机侧的操作中由辅助电流控制器控制，由此以牺牲同步机器的动能为代价， 产生通过电路的电流，这是覆盖介电损耗所需的电流并保持所需的磁通量。

公开(公告)号：US4633158A

公开(公告)日：1986-12-30

申请号：US667468

申请日：1984-11-01

申请人： Akio Hirata ,  Yosio Naito

发明人： Akio Hirata ,  Yosio Naito

IPC分类号： H02P25/02 ,  H02P27/04 ,  H02P5/40

CPC分类号： H02P25/024

摘要： A control system for an AC motor to be driven by an inverter, wherein a control lead angle .beta. of the AC motor drive current is controlled based on the detection of an actual overlapped angle, a set overlapped angle, a detected motor speed, a detected magnitude of the acceleration-deceleration rate of motor speed, a detected amount of current from a power source and/or a detected magnitude of the change rate in the current from the power source.

摘要翻译： 一种用于由逆变器驱动的AC电动机的控制系统，其中，基于实际重叠角度的检测，设定的重叠角度，检测到的电动机速度，检测到的电动机速度来控制AC电动机驱动电流的控制导程角β 电动机速度的加速 - 减速率的大小，来自电源的电流的检测量和/或来自电源的电流中的变化率的检测大小。

公开(公告)号：US4626762A

公开(公告)日：1986-12-02

申请号：US641995

申请日：1984-08-20

申请人： Yoshiki Fujioka ,  Mitsuhiko Hirota

发明人： Yoshiki Fujioka ,  Mitsuhiko Hirota

IPC分类号： H02P21/00 ,  H02P23/08 ,  H02P27/04 ,  H02P27/06 ,  H02P5/40

CPC分类号： H02P23/08

摘要： A method of controlling an AC motor which exhibits a constant torque characteristic at a rotational speed N below a base speed Nb and a constant output characteristic at a rotational speed N above the base speed Nb, comprising the steps of finding a base speed N.sub.L after limiting the output power of the AC motor, N.sub.L being derived from the base speed Nb and the ratio .eta. between maximum output power Pmax.sub.1 and maximum output power Pmax.sub.2 before and after the output power of the AC is limited, respectively, rendering the slip frequency of the AC motor constant until the rotational speed N of the AC motor reaches the base speed N.sub.L, varying the slip frequency in inverse proportion to the rotational speed N for N between N.sub.L and Nb (N.sub.L

公开(公告)号：US4626761A

公开(公告)日：1986-12-02

申请号：US733484

申请日：1985-05-10

申请人： Felix Blaschke

发明人： Felix Blaschke

IPC分类号： G01R31/34 ,  G01R33/02 ,  H02P21/14 ,  H02P5/40

CPC分类号： H02P21/141

摘要： For determining the flux vector, an EMF vector (e.sub.s) is formed in an EMF detector (15) from the stator current and the stator voltage, the components of which are determined in a rotating coordinate system rotated by an angle (.beta.) relative to the coordinate system which is fixed with respect to the stator. The flux vector (.psi..sub..beta.) is formed in the rotating coordinate system, taking into consideration the rotary EMF component (e.sub..beta..sup.R) which is generated from the flux vector through rotation by .pi./2 and multiplication by the frequency of rotation (.beta.). The angle of rotation (.beta.) is determined by feeding the direction deviation of the flux vector (.psi..sub..beta.) or a reference vector (.psi.*) for the flux vector by the angle (.beta.) to a servo control (27 or 30, respectively), the output signal of which is fed as the speed of rotation (.beta.) via an integrator (20) for forming the angle of rotation (.beta.).

摘要翻译： 为了确定通量矢量，从定子电流和定子电压在EMF检测器（15）中形成EMF矢量（_es），其中的分量在旋转坐标系中以相对于 相对于定子固定的坐标系。 考虑到通过旋转π/ 2和乘以旋转频率（β）的通量矢量产生的旋转EMF分量（_eβR），在旋转坐标系中形成磁通矢量（psiβ） 。 通过将通量矢量（psiβ）的方向偏差或通量矢量的参考矢量（psi *）与伺服控制器（27或30）的角度（β）进行比较来确定旋转角度（β） ），其输出信号通过用于形成旋转角度（β）的积分器（20）作为旋转速度（β）馈送。

公开(公告)号：US4623831A

公开(公告)日：1986-11-18

申请号：US650721

申请日：1984-09-28

申请人： Keiji Sakamoto ,  Yukio Toyozawa

发明人： Keiji Sakamoto ,  Yukio Toyozawa

IPC分类号： G01P3/44 ,  G01D5/244 ,  G01D5/245 ,  H02P6/16 ,  H03M1/26 ,  H02P5/40 ,  G08C19/28

CPC分类号： G01D5/24404 ,  G01D5/2455 ,  H03M1/143 ,  H03M1/26 ,  H03M1/303

摘要： A pulse encoder (2) is provided for generating a position code IP corresponding to the rotational position of a rotor of a motor (1), as well as rotation pulses AP, BP each of which is produced whenever the rotor rotates by a predetermined amount. The rotation pulses AP, BP are applied to a counter (32) via quadrupling pulse generating circuit (30). A leading edge/trailing edge sensing circuit (31) is provided for sensing a transition point of the position code, with the counter (32) being preset by an output from the circuit (32). Thus, the position of the rotor is capable of being indicated precisely based on the position code and the value counted by the counter.

摘要翻译： PCT No.PCT / JP83 / 00380 Sec。 371日期1984年9月28日第 102（e）日期1984年9月28日PCT提交1983年10月26日PCT公布。 出版物WO84 / 01821 日期为1984年5月10日。提供脉冲编码器（2），用于产生与电动机（1）的转子的旋转位置相对应的位置代码IP，以及旋转脉冲AP，BP， 转子旋转预定量。 旋转脉冲AP，BP经由四重脉冲发生电路（30）施加到计数器（32）。 提供前沿/后沿检测电路（31）用于感测位置代码的转变点，计数器（32）由电路（32）的输出预设。 因此，转子的位置能够基于位置代码和由计数器计数的值精确地指示。