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    • 1. 发明授权
    • AC motor control system
    • 交流电机控制系统
    • US3940669A
    • 1976-02-24
    • US526405
    • 1974-11-22
    • Takashi TsuboiTokunosuke Tanamachi
    • Takashi TsuboiTokunosuke Tanamachi
    • H02M1/06H02P6/20H02P25/02H02P27/06H02P5/40
    • H02P27/06H02P25/03
    • A control system for an A.C. motor which is connected to the output terminals of a thyristor inverter, a capacitor is connected between the D.C. input terminals of the thyristor inverter, and the respective thyristors constituting the inverter are extinguished by self commutation due to an oscillating current produced by the capacitance of the capacitor and the reactance component of the armature coils of the A.C. motor connected to the A.C. output terminals of the thyristor inverter, and a current in the waveform of pulses produced by electric oscillation is delivered in a predetermined phase sequence to the armature coils of the A.C. motor.
    • 用于交流电动机的控制系统,其连接到晶闸管逆变器的输出端子,电容器连接在晶闸管逆变器的直流输入端子之间,构成逆变器的各个晶闸管由于振荡电流而自身换相消除 由电容器的电容和连接到晶闸管反相器的交流输出端子的交流电动机的电枢线圈的电抗分量产生的电流,并且以电振荡产生的脉冲波形中的电流以预定的相序递送到 交流电机的电枢线圈。
    • 5. 发明授权
    • Inverter control apparatus
    • 变频器控制装置
    • US5532569A
    • 1996-07-02
    • US131308
    • 1993-10-04
    • Tokunosuke TanamachiKiyoshi NakamuraKiyoshi NakataYoshio TsutsuiWataru MiyakeKatsuaki Suzuki
    • Tokunosuke TanamachiKiyoshi NakamuraKiyoshi NakataYoshio TsutsuiWataru MiyakeKatsuaki Suzuki
    • H02M7/5387H02P5/34
    • H02M7/53873H02M2001/0022H02M2007/4803
    • An electric railway vehicle control system including a converter for converting a single-phase a.c. voltage to a d.c. voltage, a PWM inverter for inverting the d.c. output of the converter to a variable voltage, variable frequency a.c. voltage, and a three-phase induction motor supplied with the a.c. output voltage of the inverter to drive electric railway vehicles. The control system further includes a unit for controlling the output voltage of the inverter in a variable voltage, variable frequency mode for changing the output voltage substantially relative to a change in the output frequency thereof and in a constant voltage, variable frequency control mode for fixing the output voltage to a substantially constant value, and a unit for detecting a rectification ripple in a frequency band including a frequency double the frequency of the single-phase a.c. voltage included in the d.c. input voltage to the inverter.
    • 一种电动车辆控制系统,包括用于转换单相交流电的转换器。 电压到直流 电压,用于反相直流的PWM逆变器。 转换器输出为可变电压,可变频率a.c. 电压和三相异步电动机。 变频器的输出电压驱动电动铁路车辆。 控制系统还包括用于以可变电压,可变频率模式控制逆变器的输出电压的单元,用于基本上相对于其输出频率的变化来改变输出电压,并且以恒定电压,用于固定的可变频率控制模式 输出电压为基本恒定的值,以及用于检测包括单相交流频率的两倍频率的频带中的整流纹波的单元 电压包括在直流电压 输入电压到变频器。
    • 8. 发明授权
    • Multilevel inverter having voltage dividing capacitors distributed
across multiple arms
    • 具有分布在多个臂上的分压电容器的多电平逆变器
    • US5481448A
    • 1996-01-02
    • US329374
    • 1994-10-25
    • Kiyoshi NakataKiyoshi NakamuraTokunosuke TanamachiYoshio TsutsuiMutsuhiro Terunuma
    • Kiyoshi NakataKiyoshi NakamuraTokunosuke TanamachiYoshio TsutsuiMutsuhiro Terunuma
    • H02M7/48H02M7/483H02M7/487H02M7/5387H02M7/521
    • H02M7/487
    • The power converter of the invention relates to a small-sized highly efficient power converter for generating an a.c. voltage output of multiple levels with less harmonic content. In the power converter, a d.c. voltage source is separated into plural sections by series connected voltage dividing capacitors and multiple levels of a.c. output voltage are obtained from the divided d.c. voltage by on-off control of switching devices. The power converter has plural sets of the voltage dividing capacitors disposed separately adjacent to each switching devices, and series connection point of each set of the voltage dividing capacitors are connected to division points of the corresponding switching devices of each phase. The voltage dividing capacitors are connected with each other at their series connection points. Thereby, the arrangement makes wiring length short and equal between the switching devices and the voltage dividing capacitors for each phase and reduce a loss in the snubber circuit, resulting in an a.c. voltage output with less harmonic content.
    • 本发明的功率转换器涉及一种小型高效率功率转换器,用于产生一个直流 具有较少谐波含量的多级电压输出。 在电源转换器中, 电压源通过串联连接的分压电容器和多个等级的交流电源分成多个部分。 输出电压从分压直流 开关器件的开 - 关控制电压。 电力转换器具有与各开关元件分开设置的多组分压电容器,各组分压电容器的串联连接点与各相的开关元件的分断点连接。 分压电容器在其串联连接点处彼此连接。 因此,该布置使得各相的开关器件和分压电容器之间的布线长度短并且相等,并且减小了缓冲电路的损耗,导致了直流。 电压输出谐波含量较少。