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公开(公告)号：US4527214A
公开(公告)日：1985-07-02
申请号：US481150
申请日：1983-04-01
申请人： Motonobu Hattori , Akira Ishibashi , Hiromi Ishida , Kenji Nandoh
发明人： Motonobu Hattori , Akira Ishibashi , Hiromi Ishida , Kenji Nandoh
CPC分类号： H02M1/36 , H02H3/0935 , H02M5/4505
摘要： A power inverter including a converter unit for rectifying AC power into DC power, an inverter for inverting the DC power into AC power for driving a load apparatus, and a protection apparatus for protecting the load apparatus from being overloaded. The load protecting apparatus comprises current detecting means for detecting a current supplied to the inverter unit from the converter unit, a memory for storing a thermally limited operation time characteristic determined in consideration of cooling effect proper to the load apparatus, and an abnormality detecting circuit for producing an abnormality signal to stop the operation of the inverter unit when an accumulated value calculated on the basis of the current value detected by the current detector at a predetermined sampling interval exceeds the characteristic value previously stored in the memory. The load apparatus can be positively protected from overload notwithstanding variations in the output voltage and the output frequency of the power inverter.
摘要翻译： 一种电力逆变器，包括用于将交流电转换成直流电力的转换器单元，用于将直流电转换成用于驱动负载装置的交流电力的逆变器，以及用于保护负载装置不被过载的保护装置。 负载保护装置包括电流检测装置，用于检测从转换器单元提供给逆变器单元的电流;存储器，用于存储考虑到适用于负载装置的冷却效果确定的热限制运行时间特性;以及异常检测电路， 产生异常信号以在基于由电流检测器检测的当前值以预定采样间隔计算的累加值超过预先存储在存储器中的特征值时停止逆变器单元的操作。 尽管输出电压和功率逆变器的输出频率有变化，负载装置也可以得到积极的保护，避免过载。
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公开(公告)号：US4451112A
公开(公告)日：1984-05-29
申请号：US342649
申请日：1982-01-25
CPC分类号： H02P29/025 , H02P1/029 , H02P1/30 , H02P23/0077 , H02P27/045 , H02P27/048 , H02P27/08 , H02P2207/01 , H02P27/047
摘要： A method and apparatus for controlling an induction motor, in which an AC power source is connected to the induction motor through a switch and a frequency converter, and the motor speed is controlled by controlling the output frequency and output voltage of the frequency converter. In the starting operation, the induction motor in a free-running state is supplied with an initial voltage in a given frequency which is expected to make the absolute value of the motor current minimum or near minimum, and then the supply voltage is increased gradually from the initial voltage with its frequency being retained at the given voltage. When the output frequency of the frequency converter reaches a predetermined value, the output frequency and voltage thereof are increased gradually with the ratio therebetween being maintained at a given value.
摘要翻译： 一种用于控制感应电动机的方法和装置，其中通过开关和变频器将AC电源连接到感应电动机，并且通过控制变频器的输出频率和输出电压来控制电动机速度。 在启动操作中，自由运行状态的感应电动机被提供给给定频率的初始电压，该初始电压预期使电动机电流的绝对值最小或接近最小，然后电源电压逐渐从 其频率保持在给定电压下的初始电压。 当变频器的输出频率达到预定值时，其输出频率和电压逐渐增加，其间的比例保持在给定值。
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公开(公告)号：US4622628A
公开(公告)日：1986-11-11
申请号：US623085
申请日：1984-06-21
CPC分类号： H02M7/53873
摘要： An inverter for converting DC power to AC power, an oscillation control circuit for stepwise generating a command value concerning the conversion condition of the inverter, and an operation controller which, when the command value from the oscillation control circuit changes, controls the oscillation control circuit to repetitively generate alternate new and old or present command values before and after change of the command value. Particularly, this invention provides an inverter capable of continuing smooth operation even when the control system has a limited resolution.
摘要翻译： 一种用于将DC电力转换为AC电力的逆变器，用于逐步产生与逆变器的转换条件相关的指令值的振荡控制电路，以及当来自振荡控制电路的指令值变化时，控制振荡控制电路 在命令值改变之前和之后重复生成备用的新旧命令值。 特别地，本发明提供了即使在控制系统具有有限分辨率的情况下也能够继续平稳运行的逆变器。
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4.发明授权Method and apparatus for selectively controlling an operation mode of a PWM inverter between an asychronous mode and a synchronous mode modulation 失效用于在异步模式和同步模式调制之间选择性地控制PWM逆变器的操作模式的方法和装置
公开(公告)号：US4779183A
公开(公告)日：1988-10-18
申请号：US76270
申请日：1987-07-22
申请人： Nobuyoshi Mutoh , Akiteru Ueda , Hideyuki Shimonabe , Satoshi Ibori , Motonobu Hattori , Kenji Nandoh , Yuuzi Yamasawa
发明人： Nobuyoshi Mutoh , Akiteru Ueda , Hideyuki Shimonabe , Satoshi Ibori , Motonobu Hattori , Kenji Nandoh , Yuuzi Yamasawa
IPC分类号： H02M7/48 , H02M7/529 , H02M7/5395 , H02P27/08 , H02M1/08
CPC分类号： H02M7/5395 , H02M7/529
摘要： A method and apparatus are disclosed for controlling a pulse width modulated (PWM) inverter controlled for ignition by a (PWM) pulse produced with a carrier wave and a modulation wave. The method comprises sampling an amplitude of the modulation wave at a cycle rate related to the frequency of the carrier wave. The modulation wave and the carrier wave are synchronized when the sample modulation wave amplitude has a peak value greater than an amplitude of the carrier wave. The modulation wave and the carrier wave are asynchronized when the sampled modulation wave has a peak value less than the amplitude of the carrier wave.
摘要翻译： 公开了一种用于控制通过用载波和调制波产生的（PWM）脉冲控制点火的脉宽调制（PWM）逆变器的方法和装置。 该方法包括以与载波频率相关的周期速率对调制波的振幅进行采样。 当采样调制波幅度具有大于载波振幅的峰值时，调制波和载波是同步的。 当采样的调制波具有小于载波振幅的峰值时，调制波和载波是不同步的。
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公开(公告)号：US4767976A
公开(公告)日：1988-08-30
申请号：US37853
申请日：1987-04-13
申请人： Nobuyoshi Mutoh , Akiteru Ueda , Motonobu Hattori , Satoshi Ibori , Hideyuki Shimonabe , Kenji Nandoh
发明人： Nobuyoshi Mutoh , Akiteru Ueda , Motonobu Hattori , Satoshi Ibori , Hideyuki Shimonabe , Kenji Nandoh
CPC分类号： H02P27/08 , H02P27/047
摘要： A control system for controlling a PWM inverter so that the inverter drives an induction motor at a variable voltage and a variable frequency while keeping constant a ratio of the output voltage of the inverter to the output frequency thereof, is disclosed which includes current component detecting means for detecting an effective current corresponding to a load, from the input current of the induction motor, frequency setting means for setting the output frequency of the PWM inverter, flux setting means for setting the amount of magnetic flux generated in the induction motor, correcting-frequency calculating means for calculating a frequency correcting quantity proportional to the effective current, and correcting-flux calculating means for calculating a flux correcting quantity proportional to the effective current. In a case where the detected effective current is judged to be less than a predetermined value, the frequency correcting quantity is added to the set output frequency to obtain an output frequency command, and the sum of the flux correcting quantity and the set amount of magnetic flux is multiplied by the value of the output frequency command to obtain an output voltage command, for the purpose of controlling the operation of the PWM inverter on the basis of the output frequency command and the output voltage command.
摘要翻译： 一种用于控制PWM逆变器的控制系统，使得逆变器以可变电压和可变频率驱动感应电动机，同时保持变频器的输出电压与其输出频率的比例恒定，其包括电流分量检测装置 用于从感应电动机的输入电流检测与负载相对应的有效电流;频率设定装置，用于设定PWM逆变器的输出频率;磁通设定装置，用于设定感应电动机中产生的磁通量， 频率计算装置，用于计算与有效电流成比例的频率校正量;以及校正磁通计算装置，用于计算与有效电流成比例的磁通校正量。 在检测到的有效电流被判断为小于预定值的情况下，将频率校正量与设定的输出频率相加，得到输出频率指令，并且磁通校正量与设定的磁场量之和 为了根据输出频率指令和输出电压指令来控制PWM逆变器的运行，磁通量乘以输出频率指令的值以获得输出电压指令。
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公开(公告)号：US4562524A
公开(公告)日：1985-12-31
申请号：US664773
申请日：1984-10-25
CPC分类号： H02M7/53873
摘要： A control apparatus for producing a pulse width modulating signal to be used for operation of a PWM inverter wherein a modulating wave of a sinusoidal waveform corresponding to the desired AC output voltage of the inverter is sampled at selected periodical time intervals to obtain a level of the modulating wave at each sampling point and the interval is arithmetically determined between each sampling time point and a time point which appears between the sampling point and the next sampling point and at which time point a virtual triangular waveform, which has positive and negative peaks of a predetermined amplitude occurring alternately at the selected periodical time interval, takes the same level as the sampled level of the modulating wave. On the basis of the time interval, the PWM signal is produced.
摘要翻译： 一种用于产生用于PWM逆变器的操作的脉宽调制信号的控制装置，其中以选定的周期时间间隔采样对应于逆变器的期望AC输出电压的正弦波形的调制波，以获得 在每个采样点处的调制波和间隔在每个采样时间点和出现在采样点和下一个采样点之间的时间点之间算术确定，并且在该时间点，具有正，负峰值的虚拟三角波形 在选定的周期时间间隔交替出现的预定幅度与调制波的采样电平相同。 基于时间间隔，产生PWM信号。
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公开(公告)号：US5906092A
公开(公告)日：1999-05-25
申请号：US855891
申请日：1997-05-12
申请人： Motonobu Hattori
发明人： Motonobu Hattori
CPC分类号： D01H1/244
摘要： The object of the invention is to provide a spinning machine which the manufacturing expenses and maintenance/checkout expenses are held down and the operation of the low voltage circuits is stabilized. In a spinning machine having a spindle motor control system, each three-phase power supply line is provided with a pair of conductive contacts electrically connected to at least two phases on the way thereof, and the pair of conductive contacts are structured to be separated when inserting an insulating unit therebetween and to come in contact with each other again when pulling out the insulating unit.
摘要翻译： 本发明的目的是提供一种纺纱机，其制造成本和维护/结账费用被抑制，并且低压电路的操作稳定。 在具有主轴电动机控制系统的纺纱机中，每个三相电源线设置有一对导电触点，其电连接到至少两相的路上，并且一对导电触头被构造为在 在其间插入绝缘单元并且在拉出绝缘单元时再次彼此接触。
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8.发明授权
公开(公告)号：US4719555A
公开(公告)日：1988-01-12
申请号：US810297
申请日：1985-12-18
IPC分类号： H02H3/07 , H02H7/122 , H02M7/5387
CPC分类号： H02H3/07 , H02H7/1227 , H02M7/53873
摘要： When an abnormality is detected during driving of an inverter, the output of the inverter is interrupted for a period of several milliseconds and then operated again. At this time, if no abnormality is detected, driving is continued, while if an abnormality is again detected, driving is stopped.
摘要翻译： 当在逆变器的驱动期间检测到异常时，逆变器的输出中断数毫秒的时间，然后再次操作。 此时，如果没有检测到异常，则继续驾驶，而如果再次检测到异常，则停止行驶。
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公开(公告)号：US06393816B1
公开(公告)日：2002-05-28
申请号：US09936867
申请日：2001-09-14
申请人： Motonobu Hattori
发明人： Motonobu Hattori
IPC分类号： D01H1300
摘要： A mounting of a motor system for directly driving spindles of a spinning machine, wherein individual motors are provided that are superior in insulation property, having a housing construction formed by electric insulation means, each power supply line branch in which the changing part of each power supply line is exposed is shifted in the direction of the length to provide a distance for insulation, the power supply lines being disposed close to each other to provide wiring systems of reduced size, which, together with the peripheral systems, are mounted in front of the housings of the individual motors; thus, the construction of the system can be made safe, small in size and simplified, having the effect of reducing the costs.
摘要翻译： 一种用于直接驱动纺纱机的主轴的马达系统的安装，其中提供绝缘性能优异的各个马达，具有由电绝缘装置形成的壳体结构，每个电源线分支，每个电源的变化部分 供电线被暴露在长度方向上移动以提供绝缘距离，电源线彼此靠近设置，以提供尺寸减小的布线系统，其与外围系统一起安装在 各个电机的外壳; 因此，可以使系统的安装，尺寸小，简化，从而降低成本。
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公开(公告)号：US5196769A
公开(公告)日：1993-03-23
申请号：US776292
申请日：1991-12-09
申请人： Hiroshi Chiba , Satoshi Miura , Motonobu Hattori , Takeshi Obata
发明人： Hiroshi Chiba , Satoshi Miura , Motonobu Hattori , Takeshi Obata
CPC分类号： H02P5/74 , D01H1/32 , H02P29/025
摘要： The present invention relates to a motor control device using an inverter or inverters, in particular, it relates to a motor control device suitable for the prevention of inertial rotation of a motor or motors or for the maintenance of synchronized operation of a plurality of motors in a service-interruption time; a DC side voltage is compared with a target voltage and a correction signal relating to the deviation voltage is added to a speed instruction for the inverter; thereby in a service-interruption time a motor can be continuously and smoothly decelerated keeping the DC side voltage of an inverter at a target voltage value. By utilizing a motor control device according to the present invention for a spinning machine etc., unevenness in thread winding or thread cut in a service interruption time can be prevented.
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