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    • 2. 发明授权
    • Rotary phase converter
    • 旋转相转换器
    • US5187654A
    • 1993-02-16
    • US649512
    • 1991-02-05
    • Renato Felippe
    • Renato Felippe
    • H02K47/30H02M5/14H02M5/32
    • H02M5/14H02K47/30H02M5/32
    • A rotary phase converter for connection to a single AC power source intended to supply triphase current to a triphase electrical load with minimum current and voltage imbalances. Furthermore, it is not necessary to adjust the equipment as the load changes on the overall range.The phase converter embodies an induction machine acting as rotary phase-shifter and a compensation circuit containing passive elements only. Another version with additional features for improved efficiency is also shown.Moreover, because of the current symmetry available, this phase converter can also be connected to a triphase power source to supply a single-phase load.
    • 用于连接到单个AC电源的旋转相位转换器,旨在以最小的电流和电压不平衡向三相电负载提供三相电流。 此外,当整个范围内的负载变化时,不需要调整设备。 相位转换器实现了作为旋转移相器的感应电机和仅包含无源元件的补偿电路。 还显示了具有提高效率的附加功能的另一个版本。 此外,由于目前的对称可用,该相位转换器也可以连接到三相电源以提供单相负载。
    • 3. 发明授权
    • Rotary dynamoelectric machine having high-resistance rotor
    • 具有高电阻转子的旋转电机
    • US4158225A
    • 1979-06-12
    • US772523
    • 1977-02-28
    • Claude M. Hertz
    • Claude M. Hertz
    • H02K7/04H02K9/06H02K17/16H02K47/30H02M5/00
    • H02K9/06H02K17/165H02K47/30H02K7/04
    • A rotary dynamoelectric machine having a generally annular polyphase stator with a predetermined number of wound poles and an induction rotor. The rotor has a cylindrical laminated ferromagnetic core positioned within the stator for rotation about a central axis thereof when the stator is energized by an a.c. power source. The rotor is of squirrel-cage construction having a plurality of electrically conductive bars each extending the length of the core adjacent the cylindrical surface thereof. Conductive end rings at the ends of the rotor are electrically connected to the ends of the bars at the respective ends of the core. The end rings have a plurality of radial slots therethrough thereby forming a plurality of spaced arcuate ring segments whereby the rotor has a relatively high resistance, e.g., at least three times that of such a squirrel-cage rotor with unsegmented end rings. The stator windings may be interconnected with a source of single-phase a.c. power source to permit the machine to be used as a self-starting rotary phase converter for supplying three-phase power to a load or they may be connected to a single or polyphase a.c. power source to provide a motor having low inrush current and high starting torque.
    • 一种旋转式电动机,其具有大致环形的多相定子,具有预定数量的绕线极和感应转子。 转子具有定子在定子内的圆柱形叠层铁磁芯,用于在定子被一个交流电的同时围绕其中心轴线转动。 能量源。 转子是鼠笼式结构,其具有多个导电杆,每个导电杆都延伸出与其圆柱形表面相邻的芯的长度。 在转子的端部处的导电端环在芯的相应端部处电连接到杆的端部。 端环具有穿过其中的多个径向槽,从而形成多个间隔的弧形环段,由此转子具有相对高的阻力,例如至少是具有未分段端环的鼠笼式转子的至少三倍。 定子绕组可以与单相交流电源互连。 电源,允许机器用作自启动旋转相位转换器,用于向负载提供三相电力,或者它们可以连接到单相或多相交流电。 电源,以提供具有低浪涌电流和高起动转矩的电动机。