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    • 3. 发明授权
    • Starter/generator system with DC link current control
    • 起动器/发电机系统,具有直流母线电流控制
    • US5581168A
    • 1996-12-03
    • US290436
    • 1994-08-15
    • Gregory I. RozmanAlbert L. MarkunasAlexander CookVietson Nguyen
    • Gregory I. RozmanAlbert L. MarkunasAlexander CookVietson Nguyen
    • F02N11/04H02P9/08H02P7/00
    • F02N11/04H02P9/08H02P2101/30
    • A synchronous generator usable in both a starting mode of operation and a generating mode of operation includes a permanent magnet generator having a permanent magnet and an armature winding rotatable with respect to the permanent magnet, an exciter portion having an exciter armature winding and an exciter field winding rotatable with respect to the exciter armature winding, and a main generator portion having a main generator armature winding and a main generator field winding rotatable with respect to the main generator armature winding. An inverter is coupled to supply power to the main generator portion armature winding via a DC link during the starting mode of operation, and a controller is coupled to the DC link for controlling the magnitude of the DC link current provided to the inverter during the starting mode of operation.
    • 可用于起动操作模式和发电运行模式的同步发电机包括永久磁铁发生器,其具有永磁体和相对于永磁体可旋转的电枢绕组,激励器部分具有励磁机电枢绕组和励磁场 能够相对于励磁机电枢绕组旋转的主绕组,以及具有主发电机电枢绕组的主发电机部分和能够相对于主发电机电枢绕组旋转的主发电机励磁绕组。 逆变器被耦合以在启动操作模式期间经由DC链路向主发电机部分电枢绕组供电,并且控制器耦合到DC链路,用于控制在启动期间提供给逆变器的DC链路电流的大小 操作模式。
    • 4. 发明授权
    • VSCF system with reduced DC link ripple
    • 具有减少DC链路纹波的VSCF系统
    • US5218520A
    • 1993-06-08
    • US799585
    • 1991-11-27
    • Gregory I. RozmanAlexander Cook
    • Gregory I. RozmanAlexander Cook
    • H02M1/12H02M1/14H02M5/458
    • H02M1/14H02M5/458
    • A circuit in a power system for suppressing an AC ripple superimposed on a bus signal on a bus includes a first circuit for producing first and second signals having a frequency substantially equal to the AC ripple frequency wherein the second signal is a phase quadrature of the first signal, a second circuit for combining these signals with a signal representing the bus signal having the AC ripple superimposed thereon so as to derive a control signal having substantially the same frequency and phase as the AC ripple, and a third circuit responsive to this control signal so as to substantially suppress the AC ripple on the bus.
    • 用于抑制叠加在总线上的总线信号上的交流纹波的电力系统中的电路包括:第一电路,用于产生频率基本上等于交流纹波频率的第一和第二信号,其中第二信号是第一 信号,用于将这些信号与表示具有叠加在其上的AC纹波的总线信号的信号组合的第二电路,以便导出具有与AC纹波基本相同的频率和相位的控制信号,以及响应于该控制信号的第三电路 以便基本上抑制总线上的交流纹波。
    • 7. 发明授权
    • Motor drive for permanent magnet synchronous motor
    • 永磁同步电动机驱动
    • US09048767B2
    • 2015-06-02
    • US13356348
    • 2012-01-23
    • Gregory I. RozmanThomas A. DuclosDuane A. James
    • Gregory I. RozmanThomas A. DuclosDuane A. James
    • H02P21/00H02P6/10H02P27/00H02P21/14
    • H02P6/10H02P21/14H02P21/22
    • A pulse-width modulation (PWM) inverter controller compensates for harmonics in the output current provided by a PWM inverter to permanent magnet (PM) motor. The PWM inverter controller includes a field-oriented controller (FOC) that monitors output currents provided by the PWM inverter to the PM motor and employs the monitored output currents in a current loop feedback that generates control signals. A harmonic compensator transforms monitored phase currents into rectangular waveforms having magnitudes modified based on detected harmonics within the monitored phase currents to generate compensation signals. The compensation signals generated by the harmonic compensator are summed with the control signals generated by the FOC to generate compensated control signals. A PWM signal generator generates PWM signals for controlling the PWM inverter based on the compensated control signals.
    • 脉冲宽度调制(PWM)逆变器控制器补偿由PWM逆变器提供给永磁(PM)电机的输出电流的谐波。 PWM逆变器控制器包括一个磁场定向控制器(FOC),该控制器监视由PWM逆变器提供给PM电机的输出电流,并在产生控制信号的电流环路反馈中采用监视的输出电流。 谐波补偿器将监视的相电流转换成具有基于检测到的相电流内检测到的谐波修改的幅度的矩形波形,以产生补偿信号。 由谐波补偿器产生的补偿信号与由FOC产生的控制信号相加以产生补偿控制信号。 PWM信号发生器基于经补偿的控制信号产生用于控制PWM逆变器的PWM信号。