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1. 发明授权

US5016158A Parallel multi-inverter system and motor drive system using the same 失效
标题翻译：并联多变频器系统和电机驱动系统使用相同
公开(公告)号：US5016158A
公开(公告)日：1991-05-14
申请号：US544392
申请日：1990-06-27
申请人： Takayuki Matsui , Toshiaki Okuyama , Kazuaki Tobari , Yuzuru Kubota , Junichi Takahashi
发明人： Takayuki Matsui , Toshiaki Okuyama , Kazuaki Tobari , Yuzuru Kubota , Junichi Takahashi
IPC分类号： H02M7/483 , H02M7/497
CPC分类号： H02M7/49
摘要： A parallel multi-inverter system including a plurality of inverters connected in parallel to each other through one or more parallel reactors, wherein output voltages of the inverters are controlled on the basis of the polarity of an output voltage command signal and a comparison result between a value obtained by converting the output voltage command signal into a positive one and a carrier signal to reduce harmonic components of the line-to-line voltages, and further two different switching modes to set the output voltage of the system zero are equally used to prevent a circulating current from flowing through the parallel reactors during each zero potential period of the output voltage of the system.
摘要翻译：一种并联多逆变器系统，包括通过一个或多个并联电抗器彼此并联连接的多个逆变器，其中基于输出电压命令信号的极性和在一个或多个并联电抗器之间的比较结果来控制反相器的输出电压通过将输出电压指令信号转换成正极和载波信号而获得的值，以减少线间电压的谐波分量，并且另外两种不同的开关模式用于设定系统零的输出电压同样用于防止在系统的输出电压的每个零电势周期期间流过并联电抗器的循环电流。

2. 发明授权

US4680526A Method of controlling inverter-driven induction motor 失效
标题翻译：控制变频驱动感应电动机的方法
公开(公告)号：US4680526A
公开(公告)日：1987-07-14
申请号：US766945
申请日：1985-08-19
申请人： Toshiaki Okuyama , Takayuki Matsui , Noboru Fujimoto , Yuzuru Kubota
发明人： Toshiaki Okuyama , Takayuki Matsui , Noboru Fujimoto , Yuzuru Kubota
IPC分类号： H02P21/14 , H02P5/40
CPC分类号： H02P21/04
摘要： In induction motor driven by a voltage-type inverter, the torque current component is determined by detecting a primary current flowing to the induction motor. On the basis of the torque current component determined, the output voltage and frequency of the voltage-type inverter are controlled. Additionally, the rotational speed of the induction motor is estimated on the basis of the detected torque current component and the speed of the induction motor is controlled such that the estimated speed signal coincides with a speed command signal.
摘要翻译：在由电压型逆变器驱动的感应电动机中，通过检测流向感应电动机的一次电流来确定转矩电流分量。基于确定的转矩电流分量，控制电压型逆变器的输出电压和频率。此外，感应电动机的转速基于检测到的转矩电流分量来估计，并且控制感应电动机的速度，使得估计的速度信号与速度指令信号一致。

3. 发明授权

US4277735A Control apparatus for induction motor 失效
标题翻译：感应电动机控制装置
公开(公告)号：US4277735A
公开(公告)日：1981-07-07
申请号：US2799
申请日：1979-01-11
申请人： Toshiaki Okuyama , Yuzuru Kubota , Hiroshi Nagase
发明人： Toshiaki Okuyama , Yuzuru Kubota , Hiroshi Nagase
IPC分类号： H02P27/06 , H02P6/00 , H02P27/16 , H02P7/36
CPC分类号： H02P21/00
摘要： An induction motor has a multi-phase primary winding (stator winding) and a multi-phase secondary winding (rotor winding) which are connected to each other in opposite phase relation. The both windings are fed with variable frequency A.C. current from a common frequency converter. A position sensor for sensing a rotor position is mounted on the induction motor. The position signal of the position sensor is in phase with an air gap flux between the primary winding and the secondary winding. Magnitude of a motor current is controlled in accordance with a torque command signal indicative of an error between a speed command signal and a speed feedback signal and with a voltage command signal for determining a terminal voltage, and a phase difference of the motor current relative to the position signal is controlled in accordance with the torque command signal and the voltage command signal. In this manner, the torque generated can be varied while maintaining amount of air gap flux and hence the terminal voltage constant.
摘要翻译：感应电动机具有以相反相位相互连接的多相初级绕组（定子绕组）和多相次级绕组（转子绕组）。两个绕组均馈入来自公共变频器的可变频率A.C.电流。用于感测转子位置的位置传感器安装在感应电动机上。位置传感器的位置信号与初级绕组和次级绕组之间的气隙磁通同相。根据表示速度指令信号和速度反馈信号之间的误差的转矩指令信号和用于确定端子电压的电压指令信号以及电动机电流的相位差相对于电动机电流的相位差来控制电动机电流的大小根据转矩指令信号和电压指令信号控制位置信号。以这种方式，可以在保持气隙磁通量并因此端子电压恒定的同时改变产生的转矩。

4. 发明授权

US4125796A Control apparatus for use in a synchronous machine 失效
标题翻译：用于同步电机的控制装置
公开(公告)号：US4125796A
公开(公告)日：1978-11-14
申请号：US820649
申请日：1977-08-01
申请人： Hiroshi Nagase , Toshiaki Okuyama , Yuzuru Kubota , Katsunori Suzuki
发明人： Hiroshi Nagase , Toshiaki Okuyama , Yuzuru Kubota , Katsunori Suzuki
IPC分类号： H02P6/06 , H02P25/02 , H02K29/00
CPC分类号： H02P25/03
摘要： A control apparatus for use in a synchronous machine having a field and an armature windings, one of the windings being provided on a stator and the other winding on a rotor comprises a thyristor converter for feeding the armature winding with electric power. A rotor position detector, an actual current detector and a rotating speed detector are provided. A current pattern signal is produced on the basis of the rotor position signal and the rotating speed signal and is compared with the actual armature current. A gate pulse generator controls the thyristors of the thyristor converter in accordance with the difference between the current pattern signal and the actual armature current signal. A phase shifter is provided for shifting the current pattern signal. A phase detector detects the phase difference between the armature current supplied for the armature winding and the rotor position, and the phase shifting operation of the phase shifter is controlled in accordance with an output from the phase detector.
摘要翻译：一种在具有场和电枢绕组的同步电机中使用的控制装置，其中一个绕组设置在定子上，另一个绕组在转子上包括用于向电枢绕组供电的晶闸管转换器。提供转子位置检测器，实际电流检测器和转速检测器。基于转子位置信号和转速信号产生电流模式信号，并与实际电枢电流进行比较。门脉冲发生器根据电流模式信号和实际电枢电流信号之间的差异来控制晶闸管转换器的晶闸管。提供了一个移相器来移动当前的图形信号。相位检测器检测提供给电枢绕组的电枢电流与转子位置之间的相位差，并且根据相位检测器的输出来控制移相器的相移操作。

5. 发明授权

US4330741A Electric control apparatus of induction motor 失效
标题翻译：感应电动机电控装置
公开(公告)号：US4330741A
公开(公告)日：1982-05-18
申请号：US158390
申请日：1980-06-11
申请人： Hiroshi Nagase , Toshiaki Okuyama , Yuzuru Kubota , Katsunori Suzuki
发明人： Hiroshi Nagase , Toshiaki Okuyama , Yuzuru Kubota , Katsunori Suzuki
IPC分类号： H02P27/04 , H02P27/06 , H02P5/40
CPC分类号： H02P27/06 , H02P27/045 , H02P27/048 , H02P2207/01 , H02P27/047
摘要： An electric control apparatus of an induction motor is provided with a flux current controller for controlling the flux current of the motor and a secondary current controller for controlling the secondary current of the motor. A pulse generator circuit is disposed to control the amplitude, frequency and phase angle of the primary current of the motor according to output signals of the flux current controller and secondary current controller. The primary voltage and frequency to be applied to the motor are controlled by pulse signals from the pulse generator circuit. This pulse generator circuit includes a primary voltage setting zone for setting the primary voltage of the induction motor and a primary voltage detecting zone for detecting the primary voltage of the motor. A voltage regulator is disposed to put out a signal equivalent to the change of the secondary resistance of the induction motor according to the deviation of the voltage between the primary voltage detecting zone and the primary voltage setting zone. A correcting controlling zone is disposed in the pulse generator circuit to perform a controlling action of correcting the frequency, which is one of the control objects of the pulse generator circuit, according to the output signal of the voltage regulator.
摘要翻译：感应电动机的电气控制装置设置有用于控制电动机的磁通电流的磁通电流控制器和用于控制电动机的次级电流的二次电流控制器。设置脉冲发生器电路，以根据磁通电流控制器和二次电流控制器的输出信号来控制电动机的初级电流的振幅，频率和相位角。施加到电动机的初级电压和频率由来自脉冲发生器电路的脉冲信号控制。该脉冲发生器电路包括用于设定感应电动机的初级电压的初级电压设定区域和用于检测电动机初级电压的初级电压检测区域。电压调节器被设置为根据初级电压检测区域和初级电压设定区域之间的电压的偏差来输出与感应电动机的次级电阻的变化相当的信号。校正控制区设置在脉冲发生器电路中，以根据电压调节器的输出信号执行校正频率的控制动作，该频率是脉冲发生器电路的控制对象之一。

6. 发明授权

US4240020A Control system for suppressing torque ripple in synchronous motor 失效
标题翻译：同步电机转矩脉动抑制控制系统
公开(公告)号：US4240020A
公开(公告)日：1980-12-16
申请号：US920699
申请日：1978-06-30
申请人： Toshiaki Okuyama , Yuzuru Kubota , Hiroshi Nagase , Katsunori Suzuki
发明人： Toshiaki Okuyama , Yuzuru Kubota , Hiroshi Nagase , Katsunori Suzuki
IPC分类号： H02P27/06 , H02P6/06 , H02P25/02 , H02P7/28
CPC分类号： H02P25/03
摘要： A synchronous motor having multi-phase armature windings and a field winding is drived by a frequency converter. Actual torque is determined from a sinusoidal position signal representative of rotational position of the synchronous motor and the armature current. The actual torque value is compared with a command torque signal, whereby the armature current is controlled in dependence on difference or deviation resulting from the comparison thereby to cancel the torque ripple. Torque ripple can thus be suppressed to a satisfactory degree even at a low rotation speed of the synchronous motor.
摘要翻译：具有多相电枢绕组和励磁绕组的同步电动机由变频器驱动。从表示同步电动机的旋转位置和电枢电流的正弦位置信号确定实际转矩。将实际转矩值与指令转矩信号进行比较，由此根据比较产生的差异或偏差来控制电枢电流，从而抵消转矩脉动。因此即使在同步电动机的低转速下也能够将扭矩波动抑制到令人满意的程度。

7. 发明授权

US4132931A Control system for a.c. motors 失效
标题翻译：交通控制系统电机
公开(公告)号：US4132931A
公开(公告)日：1979-01-02
申请号：US829000
申请日：1977-08-30
申请人： Toshiaki Okuyama , Yuzuru Kubota , Hiroshi Nagase
发明人： Toshiaki Okuyama , Yuzuru Kubota , Hiroshi Nagase
IPC分类号： H02P27/16 , H02P6/06 , H02P7/46
CPC分类号： H02K29/08 , H02K11/33 , H02P21/00 , H02P2207/076
摘要： A control system for an a.c. motor having a polyphase primary winding (stator winding) and a corresponding polyphase secondary winding. The primary and the secondary windings are supplied with current from different frequency converters provided separately for each of the windings. The alternating currents flowing through the primary and the secondary windings are in opposite phase with each other. A position detector is provided for detecting the position of rotor of the a.c. motor. The magnitude of the primary current is controlled proportionally to a current reference signal in dependence on deviation of a speed feed-back signal from a speed reference signal, while the magnitude of the secondary current is controlled to a constant value. The phases of the primary and the secondary currents are controlled on the basis of the rotor position. The excitation frequencies for the primary and the secondary windings are set at a predetermined ratio between certain integers and a sum of these excitation frequencies is set to be equal to an angular frequency of rotating electrical angle of rotor.
摘要翻译： a.c.的控制系统电动机具有多相初级绕组（定子绕组）和相应的多相次级绕组。主绕组和次级绕组由不同的频率转换器供电，每个绕组分别提供。流过初级和次级绕组的交流电流彼此相反。提供位置检测器，用于检测交流电机的转子位置。发动机。根据速度反馈信号与速度参考信号的偏差，初级电流的幅度与电流参考信号成比例地控制，而次级电流的幅度被控制为恒定值。基于转子位置控制初级和次级电流的相位。初级绕组和次级绕组的励磁频率在某些整数之间设定为预定的比例，这些励磁频率之和被设定为等于转子旋转电角度的角频率。

8. 发明授权

US5029288A Method and apparatus for operating a variable speed power generation system 失效
标题翻译：用于操作变速发电系统的方法和装置
公开(公告)号：US5029288A
公开(公告)日：1991-07-02
申请号：US340681
申请日：1989-04-20
申请人： Yuzuru Kubota , Toshiaki Okuyama
发明人： Yuzuru Kubota , Toshiaki Okuyama
IPC分类号： H02J3/38 , H02P9/00 , H02P9/04 , H02P9/42
CPC分类号： H02P9/42 , H02P9/007
摘要： A method and apparatus for operating a variable speed power generation system in which the generated output of an induction generator is adjusted by controlling current in the secondary side of the induction generator. Rotation speeds of the induction generator coupled to a prime mover are detected, a secondary current command for controlling a difference between a detected rotation speed and a speed command to be zero is generated, and current in the secondary side of the induction generator is controlled on the basis of the secondary current command. In addition, the generated output of the induction generator is sequentially detected in order that a command value of the speed command is sequentially changed when a detected generated output shows a tendency to increase and, when a detected generated output shifts from an increasing tendency to a decreasing tendency, the command value of the speed command is once changed to a lower speed value and thereafter returned to a higher speed value, thereby maximizing efficiency of the variable speed power generation system and reducing costs.
摘要翻译：一种用于操作变速发电系统的方法和装置，其中通过控制感应发电机的次级侧的电流来调节感应发电机的产生的输出。检测到耦合到原动机的感应发电机的转速，产生用于将检测到的转速和速度指令之间的差异控制为零的二次电流指令，将感应发电机次级侧的电流控制在二次电流指令的基础。此外，感应发电机的产生的输出被顺序地检测，以便当检测到的产生的输出显示出增加的趋势时，速度指令的指令值被顺序地改变，并且当检测到的产生的输出从增加趋势转移到速度指令的指令值一度改变为较低速度值，然后返回到较高速度值，从而使变速发电系统的效率最大化并降低成本。

9. 发明授权

US4486824A PWM Converter with control circuit responsive to minimum holding current 失效
标题翻译： PWM转换器，具有响应于最小保持电流的控制电路
公开(公告)号：US4486824A
公开(公告)日：1984-12-04
申请号：US356923
申请日：1982-03-10
申请人： Toshiaki Okuyama , Yuzuru Kubota , Hiroshi Nagase
发明人： Toshiaki Okuyama , Yuzuru Kubota , Hiroshi Nagase
IPC分类号： H02M7/48 , H02M7/515 , H02M7/757
CPC分类号： H02M7/757
摘要： In a converter comprising gate turn-off thyristors, a current at an A.C. part of the converter is detected and a polarity of the detected current and a magnitude of the detected current is checked to determine if it is below a holding current level for maintaining the gate turn-off thyristors on. If the detected current is below the holding current level, a pulse width modulated signal is produced as a gate signal. If the detected level is above the holding current level, a short duration pulse synchronized with a rise and a fall of the pulse width modulated signal is produced as the gate signal. The gate signal is supplied to only those of the gate turn-off thyristors which correspond to the polarity of the detected current.
摘要翻译：在包括栅极截止晶闸管的转换器中，检测转换器的AC部分的电流，检测检测到的电流的极性和检测到的电流的大小，以确定其是否低于保持电流水平门极关断晶闸管。如果检测到的电流低于保持电流电平，则产生脉宽调制信号作为门信号。如果检测到的电平高于保持电流电平，则产生与脉宽调制信号的上升和下降同步的短持续时间脉冲作为门信号。栅极信号仅供给与检测到的电流的极性对应的栅极截止晶闸管的栅极信号。

10. 发明授权

US4344025A Motor control system 失效
标题翻译：电机控制系统
公开(公告)号：US4344025A
公开(公告)日：1982-08-10
申请号：US70725
申请日：1979-08-29
申请人： Toshiaki Okuyama , Yuzuru Kubota , Hiroshi Nagase , Katsunori Suzuki
发明人： Toshiaki Okuyama , Yuzuru Kubota , Hiroshi Nagase , Katsunori Suzuki
IPC分类号： H02P23/00 , H02J3/18 , H02P6/00 , H02P6/06 , H02P27/05 , H02P5/40
CPC分类号： H02J3/1892 , H02P23/08 , H02P25/26 , H02P27/06 , H02P21/09 , H02P2201/13
摘要： A motor control system controls to be constant a reactive power consumed by a motor load equipment having a motor to be driven by power supplied from an AC power source and a couple of thyristor converters for regulating the power supplied to the motor. To this end, the motor control system is comprised of a reactor power detector for detecting the reactive power of the motor load equipment, a command circuit for issuing a command to specify the rated reactive power consumed in the rated load running of the motor load equipment, and a reactive power control unit which receives an output signal from the command circuit and an output signal from the reactive power detector to produce a firing phase command signal depending on a difference between them. The firing phase command signal from the reactive power control unit is applied to an automatic pulse phase shifter to control the firing phase of the thyristor converters.
摘要翻译：电动机控制系统控制由电动机负载设备消耗的无功功率的恒定，所述电动机负载设备具有通过从AC电源提供的电力驱动的电动机和用于调节供应到电动机的功率的一对晶闸管转换器。为此，电动机控制系统包括用于检测电动机负载设备的无功功率的电抗器功率检测器，用于发出用于指定在电动机负载设备的额定负载运行中消耗的额定无功功率的命令的指令电路以及无功功率控制单元，其接收来自命令电路的输出信号和来自无功功率检测器的输出信号，以根据它们之间的差异产生触发相位命令信号。来自无功功率控制单元的点火相位指令信号被施加到自动脉冲移相器以控制晶闸管转换器的点火相位。

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