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    • 1. 发明授权
    • Driving apparatus for driving multiple induction motors
    • 驱动多感应电机的驱动装置
    • US07180259B2
    • 2007-02-20
    • US11175024
    • 2005-07-06
    • Yasushi MatsumotoHidetoshi Umida
    • Yasushi MatsumotoHidetoshi Umida
    • H02P7/00
    • H02P5/74
    • The driving apparatus according to the invention includes an inverter that drives multiple induction motors connected in parallel, and a secondary current calculating circuit that calculates the components i2W and i2L of a total secondary current value, which is the sum of the secondary currents of all the motors. The apparatus further includes a current deviation quantity calculating circuit that calculates a deviation quantity, for which the total secondary current value deviates from a reference trace. A torque regulating circuit regulates the motor torque based on the calculated deviation quantity. The driving apparatus for driving multiple induction motors according to the invention facilitates quickly detecting the widening caused in the rotating speed differences and preventing the rotating speed differences from widening.
    • 根据本发明的驱动装置包括驱动并联连接的多个感应电动机的逆变器,以及二次电流计算电路,其计算一个或多个电动机的组件i 2W 2和i 2L 总二次电流值,即所有电机的二次电流之和。 该装置还包括电流偏差量计算电路,该电流偏差量计算电路计算总二次电流值偏离参考轨迹的偏差量。 扭矩调节电路根据计算的偏差量来调节电动机转矩。 根据本发明的用于驱动多个感应电动机的驱动装置有助于快速检测在转速差引起的加宽,并防止转速差加大。
    • 2. 发明申请
    • Driving apparatus for driving multiple induction motors
    • 驱动多感应电动机的驱动装置
    • US20060012322A1
    • 2006-01-19
    • US11175024
    • 2005-07-06
    • Yasushi MatsumotoHidetoshi Umida
    • Yasushi MatsumotoHidetoshi Umida
    • H02P7/00
    • H02P5/74
    • The driving apparatus according to the invention includes an inverter that drives multiple induction motors connected in parallel, and a secondary current calculating circuit that calculates the components i2W and i2L of a total secondary current value, which is the sum of the secondary currents of all the motors. The apparatus further includes a current deviation quantity calculating circuit that calculates a deviation quantity, for which the total secondary current value deviates from a reference trace. A torque regulating circuit regulates the motor torque based on the calculated deviation quantity. The driving apparatus for driving multiple induction motors according to the invention facilitates quickly detecting the widening caused in the rotating speed differences and preventing the rotating speed differences from widening.
    • 根据本发明的驱动装置包括驱动并联连接的多个感应电动机的逆变器,以及二次电流计算电路,其计算一个或多个电动机的组件i 2W 2和i 2L 总二次电流值,即所有电机的二次电流之和。 该装置还包括电流偏差量计算电路,该电流偏差量计算电路计算总二次电流值偏离参考轨迹的偏差量。 扭矩调节电路根据计算的偏差量来调节电动机转矩。 根据本发明的用于驱动多个感应电动机的驱动装置有助于快速检测在转速差引起的加宽,并防止转速差加大。
    • 4. 发明授权
    • Apparatus for relocating, grouping and housing a plurality of recording
media based on their recording medium-related information
    • 用于基于其记录介质相关信息来重新定位,分组和容纳多个记录介质的设备
    • US06115332A
    • 2000-09-05
    • US056902
    • 1998-04-07
    • Keiichi AsakuraYasushi Matsumoto
    • Keiichi AsakuraYasushi Matsumoto
    • G11B17/22G11B17/24
    • G11B17/24G11B17/228
    • A reproducing apparatus for a recording medium on which information signals and information indicating the type of the information signals are recorded includes a housing section, a reproducing section, a carrier mechanism, and a controller. The housing section houses plural recording media. The reproducing section reproduces a recording medium. The carrier mechanism takes out a recording medium from the housing section and carries the recording medium to the reproducing section. The controller controls the reproducing section and the carrier mechanism. The controller controls the carrier mechanism on the basis of category information indicating a genre and information related to a reproduction frequency generated on the basis of reproduction hysteresis information of the recording medium, so as to carry out relocation within the housing section of the recording media housed in the housing section.
    • 一种用于记录信息的信息信号和信息信号的信息的信息的记录介质的再现装置包括:收容部分,再现部分,载体机构和控制器。 住房部分容纳多个记录介质。 再现部再现记录介质。 载体机构从壳体部分取出记录介质并将记录介质运送到再现部分。 控制器控制再现部分和载体机构。 控制器基于指示类型的类别信息和基于记录介质的再现滞后信息生成的再现频率的信息来控制载体机构,以便在容纳的记录介质的容纳部分内进行搬迁 在住房部分。
    • 10. 发明授权
    • Variable speed driving apparatus for induction machines
    • 感应电机变速驱动装置
    • US6043617A
    • 2000-03-28
    • US37100
    • 1998-03-09
    • Yasushi MatsumotoChiharu OsawaTetsuya Mizukami
    • Yasushi MatsumotoChiharu OsawaTetsuya Mizukami
    • H02P5/50H02P5/74H02P21/00H02P21/08H02P27/04H02P27/06B61C15/08
    • H02P5/74H02P21/09
    • A variable speed driving apparatus drives a plurality of induction machines that facilitates reducing the deviations of the primary magnetic fluxes of the induction machines from the reference and preventing the torque and rotating speed of each induction machine from lowering in the low speed range or when the loads on the respective induction machines are unbalanced. The variable speed driving apparatus includes an inverter 1, induction machines 2, current detectors 3, speed detectors 4, a reference angular frequency operating device 6 for operating the rotating angular frequency of the induction machine bearing the heaviest load based on the output signals of the speed detectors 4, a first phase difference operating device 7.sub.1, for operating the first phase difference between the secondary side component of a reference current and a primary reference magnetic flux, a first reference slip angular frequency operating device 8.sub.1 , to which the first phase difference is inputted, an adder 12.sub.1, for adding the output of the operating device 8.sub.1, and the output of the operating device 6, an integrator 13 for integrating the output of the adder 12.sub.1, a detected current vector rotating device 5 for converting the output of the current detectors 3 to a q-axis component and a d-axis component based on the output of the integrator 13, a q-axis current regulator 10, a d-axis current regulator 11, and a reference voltage vector rotating device 15.sub.1 for converting the reference d-axis current value and reference q-axis current value to reference three-phase voltage values based on the output of the integrator 13.
    • 变速驱动装置驱动多个感应电机,其有助于减小感应电机的一次磁通量与基准的偏差,并且防止每个感应电机的转矩和转速在低速范围内降低或当负载 在各自的感应电机上是不平衡的。 变速驱动装置包括逆变器1,感应电动机2,电流检测器3,速度检测器4,基于角速度运算装置6的基准角频率运算装置6,其基于输出信号来运行负载最大负载的感应电动机的旋转角频率 速度检测器4,用于操作参考电流的次级侧分量与主参考磁通之间的第一相位差的第一相位差运算器件71,第一相位差运算器件81, 输入用于将操作装置81的输出和操作装置6的输出相加的加法器121,用于对加法器121的输出进行积分的积分器13,用于转换加法器121的输出的检测电流矢量旋转装置5 基于积分器13的输出,电流检测器3至q轴分量和d轴分量,q轴电流调节器1 0,d轴电流调节器11和基准电压矢量旋转装置151,用于基于积分器13的输出将参考d轴电流值和参考q轴电流值转换为参考三相电压值。