Optimum efficiency control system
    1.
    发明授权
    Optimum efficiency control system 失效
    最优效率控制系统

    公开(公告)号:US4392100A

    公开(公告)日:1983-07-05

    申请号:US174552

    申请日:1980-08-01

    IPC分类号: H02P23/06 H02P5/40

    摘要: An optimum efficiency control system for a variable torque/speed rotary a.c. induction machine including means for varying the frequency and magnitude of the excitation voltage/current supplied to the machine in three optimum efficiency regions of operation, a first fixed slip frequency region, a second flux saturation region, and a third voltage saturation region; and means for commanding the means for varying in the first fixed slip frequency region of operation with an excitation frequency command signal derived from the machine rotor speed and unconstrained maximum efficiency slip frequency, and an excitation voltage/current command signal derived from the difference between the commanded torque/speed of the machine and its actual torque/speed; in the second flux saturation region of operation with an excitation frequency command signal derived from the machine rotor speed and slip frequency command signal derived from the machine rotor speed and slip frequency which is a function of the difference between the commanded torque/speed of the machine and its actual torque/speed; and an excitation voltage/current command signal derived from the difference between the saturation flux and actual flux in the machine; and in the third voltage saturation region of operation with the saturation voltage and an excitation frequency command signal derived from the machine rotor speed and slip frequency which is a function of the difference between the commanded torque/speed and actual torque/speed of the machine.

    摘要翻译: 用于可变转矩/速度旋转直流的最佳效率控制系统。 感应电机包括用于在三个最佳效率操作区域中改变提供给机器的激励电压/电流的频率和幅度的装置,第一固定转差频率区域,第二磁通饱和区域和第三电压饱和区域; 以及用于根据从机器转子速度和非约束最大效率转差频率导出的激励频率指令信号来命令用于改变第一固定转差频率操作区域的装置的装置,以及从所述第一固定转差频率区域的差异导出的激励电压/电流指令信号 指令扭矩/机器速度及其实际扭矩/转速; 在具有来自机器转子速度和滑差频率指令信号的激励频率指令信号的第二磁通饱和区域中,该转子速度和转差频率指令信号是从机器转子速度和转差频率导出的,该转速是机器的指令转矩/转速之间的差值的函数 及其实际扭矩/转速; 以及从机器中的饱和磁通和实际磁通之间的差导出的激励电压/电流指令信号; 以及饱和电压的第三电压饱和区域和从机器转子速度和转差频率导出的激励频率指令信号,其是指令转矩/速度与机器的实际转矩/转速之差的函数。

    Inertial energy storage device and synchronous rotary electrical machine
for use therein
    2.
    发明授权
    Inertial energy storage device and synchronous rotary electrical machine for use therein 失效
    惯性储能装置及同步旋转电机

    公开(公告)号:US4631456A

    公开(公告)日:1986-12-23

    申请号:US651071

    申请日:1984-09-17

    摘要: An inertial energy storage device including a synchronous rotary electrical machine for bidirectional conversion between mechanical and electrical energy including: a stator having two axially spaced sets of circumferentially spaced teeth; field excitation means disposed on the stator to provide an axially polarized magnetic field; stator windings including a plurality of coils, each of which surrounds at least one tooth from each set; and a rotor having a plurality of circumferentially spaced teeth facing the stator teeth, and a circumferential flywheel mass radially spaced from its rotational axis; and a motor control circuit including sensor means for sensing the position of the rotor relative to the stator; means, responsive to the sensor means, for generating a waveform for driving the machine when it is operating as a motor; a voltage control circuit for controlling the amplitude of the waveform for driving the machine; and a current control circuit for controlling amplitude of the current provided to the machine.

    摘要翻译: 一种惯性能量存储装置,包括用于机械和电能之间的双向转换的同步旋转电机,包括:定子,其具有两个轴向间隔开的一组周向间隔开的齿; 励磁装置设置在定子上以提供轴向偏振磁场; 定子绕组包括多个线圈,每个线圈围绕每组的至少一个齿; 以及转子,其具有面向定子齿的多个周向间隔开的齿,以及沿其旋转轴线径向间隔开的周向飞轮体; 以及电动机控制电路,包括用于感测转子相对于定子的位置的传感器装置; 响应于传感器装置的装置,用于当其作为电动机操作时产生用于驱动机器的波形; 用于控制用于驱动机器的波形的振幅的电压控制电路; 以及用于控制提供给机器的电流的幅度的电流控制电路。