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71. 发明授权

US4179727A Control device for a pulse-width modulated inverter 失效
标题翻译：用于脉宽调制逆变器的控制装置
公开(公告)号：US4179727A
公开(公告)日：1979-12-18
申请号：US852980
申请日：1977-11-18
申请人： Nobuyoshi Muto , Yasuo Matsuda , Kazuo Honda
发明人： Nobuyoshi Muto , Yasuo Matsuda , Kazuo Honda
IPC分类号： H02M7/48 , H02M7/527 , H02M7/515
CPC分类号： H02M7/527
摘要： A control device for a pulse-width modulated inverter comprises means for generating as a carrier wave a triangular wave synchronizing with an AC output from the inverter, means for generating as a modulating wave a train of rectangular wave pulses which synchronize with the triangular wave and have a width corresponding to a section effective for a modulating operation and a predetermined amplitude, voltage level setting means for setting the amplitude of the train of rectangular wave pulses, and means for modulating the triangular wave with the train of rectangular wave pulses and generating a control pulse for the AC output. The rectangular wave pulses are so set as to have a modulating level of zero in the proximity of a point corresponding to the zero point of the AC output of each phase thereby to remove a frequency divider for adjusting input frequencies of the triangular wave generating means and the modulating wave generating means and to prevent a useless modulating operation leading only to an increase in the number of commutations of the inverter.
摘要翻译：用于脉冲宽度调制的反相器的控制装置包括用于产生与来自反相器的AC输出同步的三角波作为载波的装置，用于产生与三角波同步的一串矩形波脉冲作为调制波; 具有对应于对于调制操作有效的部分的宽度和用于设定矩形波脉冲列的振幅的预定幅度的电压电平设定装置，以及用矩阵波脉冲串调制三角波的装置， AC输出的控制脉冲。矩形波脉冲被设置为在与每相的AC输出的零点相对应的点附近具有零调制电平，从而去除用于调整三角波产生装置的输入频率的分频器，调制波产生装置并且防止无用的调制操作仅导致逆变器的换向数量的增加。

72. 发明授权

US4156899A Current source inverter 失效
标题翻译：电流源逆变器
公开(公告)号：US4156899A
公开(公告)日：1979-05-29
申请号：US800533
申请日：1977-05-25
申请人： Yasuo Matsuda , Takeo Maeda , Takuji Matsumura
发明人： Yasuo Matsuda , Takeo Maeda , Takuji Matsumura
IPC分类号： H02P1/26 , H02M7/493 , H02M7/521 , H02P27/06 , H02M7/515
CPC分类号： H02M7/5152
摘要： A current source inverter circuit having a plurality of branches, each branch consisting of a pair of thyristors adapted to be switched on alternatingly for power supply from a D. C. power source and diodes connected in series to the thyristors. To each connection point between a thyristor and a diode, there is connected one end of one of a plurality of commutating capacitors, while the other ends of the capacitors are connected in common. An auxiliary charging source is provided between the common connection of the commutating capacitors and one of the terminals of the D. C. source for performing an auxiliary charging for each commutating capacitor through a respective thyristor. Between one of the terminals of the D. C. power source and the common connection of the commutating capacitors, a series circuit consisting of a diode and an auxiliary D. C. source is provided constituting a by-pass for the charging voltage of the commutating capacitor when the associated thyristor is in the ON state.
摘要翻译：具有多个分支的电流源逆变器电路，每个分支由一对晶闸管组成，适于交替地接通来自D.C。电源的电源和与晶闸管串联连接的二极管。对于晶闸管和二极管之间的每个连接点，连接多个换向电容器中的一个的一端，而电容器的另一端共同连接。在整流电容器的公共连接和D.C源的一个端子之间提供辅助充电源，用于通过相应的晶闸管对每个换向电容器进行辅助充电。在直流电源的一个端子和换向电容器的公共连接之间，构成由二极管和辅助直流电源组成的串联电路，构成绕组电容器的充电电压的旁路，当相关的晶闸管处于ON状态。

73. 发明授权

US4012679A Method and apparatus for controlling the operation of synchronous motor 失效
标题翻译：控制同步电机运行的方法和装置
公开(公告)号：US4012679A
公开(公告)日：1977-03-15
申请号：US543306
申请日：1975-01-23
申请人： Yasuo Matsuda , Takeo Maeda , Kouzou Watanabe , Kazuo Honda , Hironori Okuda , Kunio Miyashita , Yasuyuki Sugiura
发明人： Yasuo Matsuda , Takeo Maeda , Kouzou Watanabe , Kazuo Honda , Hironori Okuda , Kunio Miyashita , Yasuyuki Sugiura
IPC分类号： H02P1/52 , H02P25/02 , H02P1/46
CPC分类号： H02P1/52 , H02P25/024
摘要： A method and an apparatus for controlling the operation of the synchronous motor are disclosed in which the synchronous motor is started with a starting power supply and operated with a steadying power supply. The starting power supply is adapted to alternately repeat acceleration and deceleration of the synchronous motor in the neighborhood of the frequency thereby to bring the synchronous motor into the point where the synchronous motor is in synchronism with the steadying power supply. The starting power supply comprises a current control circuit and a phase angle control circuit, which circuits control the motor current in such a manner as to prevent the voltage drop due to the synchronous reactance of the motor from exceeding the induced voltage of the motor, while at the same time controlling the power factor angle to be in the range from a lead 90.degree. to the angle corresponding to a maximum output point produced by said motor current.
摘要翻译：公开了一种用于控制同步电动机的操作的方法和装置，其中同步电动机由启动电源启动并以稳定电源运行。起动电源适于在频率附近交替地重复同步电动机的加速和减速，从而使同步电动机进入同步电动机与稳定电源同步的点。启动电源包括电流控制电路和相位角控制电路，其电路控制电动机电流，以防止由于电动机的同步电抗引起的电压下降超过电动机的感应电压，同时同时将功率因数角控制在从导线90°到对应于由所述电动机电流产生的最大输出点的角度的范围内。

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