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    • 1. 发明授权
    • Position sensing method and apparatus for synchronous motor generator system
    • 同步电机发电机系统位置检测方法及装置
    • US07045986B2
    • 2006-05-16
    • US10783460
    • 2004-02-20
    • Cristian E. AnghelRocco DiVitoNicolae A. Morcov
    • Cristian E. AnghelRocco DiVitoNicolae A. Morcov
    • H02P3/18
    • H02P6/185H02P9/007H02P2101/30
    • A position sensing apparatus (300) derives rotor position of a synchronous machine (200) from signals output from the machine (200). In one embodiment, the position sensing apparatus (300) comprises: a bandpass filter (322) that filters phase voltage signals output from main stator windings (216) of the synchronous machine (200) during AC excitation, thereby extracting a rotor position-indicating component from the phase voltage signals; a converter (324) that converts the filtered phase voltages into balanced two-phase quadrature signals, the balanced two-phase quadrature signals indicating positioning of the rotor (212); and an excitation controller (204) for controlling AC excitation frequency as a function of rotor speed.
    • 位置检测装置(300)根据从机器(200)输出的信号导出同步机(200)的转子位置。 在一个实施例中,位置检测装置(300)包括:带通滤波器(322),其在AC激励期间对同步电机(200)的主定子绕组(216)输出的相电压信号进行滤波,由此提取转子位置指示 相电压信号的分量; 转换器(324),其将滤波的相电压转换成平衡的两相正交信号,所述平衡的两相正交信号指示转子(212)的定位; 以及用于控制作为转子速度的函数的AC激励频率的励磁控制器(204)。
    • 3. 发明申请
    • ISOLATED HIGH POWER BI-DIRECTIONAL DC-DC CONVERTER
    • 隔离式高功率双向直流 - 直流转换器
    • US20080304292A1
    • 2008-12-11
    • US11758099
    • 2007-06-05
    • QINGRONG ZENGTejinder SinghNicolae A. Morcov
    • QINGRONG ZENGTejinder SinghNicolae A. Morcov
    • H02M3/335G05F1/00
    • H02M3/285H02M3/33584
    • A bi-directional dc-dc converter is provided that may provide voltage conversion for two separate electrical power systems. The two electrical power systems may have different functions, electrical requirements and power transfer directions. The bi-directional dc-dc converter may include back-to-back bi-directional dc-dc converter circuits isolated from each other by a transformer. Multiple such dc-dc converters may be connected in parallel to increase power capability. Phase shift pulse width modulation (PWM) may be used to switch the parallel dc-dc converters so as to decrease both voltage ripple and current ripple. The number of dc-dc converters may be modified to meet the different needs of various electric power systems. A single bi-directional dc-dc converter of the invention may be employed to provide electric power conversion for multiple electric power systems, even where those systems have different power requirements and different power transfer directions.
    • 提供了可以为两个单独的电力系统提供电压转换的双向dc-dc转换器。 两个电力系统可能具有不同的功能,电气要求和电力传输方向。 双向dc-dc转换器可以包括由变压器彼此隔离的背对背双向dc-dc转换器电路。 多个这样的dc-dc转换器可以并联连接以增加功率能力。 可以使用相移脉冲宽度调制(PWM)来切换并联dc-dc转换器,以减小电压纹波和电流纹波。 可以修改dc-dc转换器的数量以满足各种电力系统的不同需求。 本发明的单个双向dc-dc转换器可用于为多个电力系统提供电力转换,即使那些系统具有不同的功率要求和不同的功率传输方向。
    • 5. 发明授权
    • Isolated high power bi-directional DC-DC converter
    • 隔离式高功率双向DC-DC转换器
    • US07830686B2
    • 2010-11-09
    • US11758099
    • 2007-06-05
    • Qingrong ZengTejinder SinghNicolae A. Morcov
    • Qingrong ZengTejinder SinghNicolae A. Morcov
    • H02M7/00
    • H02M3/285H02M3/33584
    • A bi-directional dc-dc converter is provided that may provide voltage conversion for two separate electrical power systems. The two electrical power systems may have different functions, electrical requirements and power transfer directions. The bi-directional dc-dc converter may include back-to-back bi-directional dc-dc converter circuits isolated from each other by a transformer. Multiple such dc-dc converters may be connected in parallel to increase power capability. Phase shift pulse width modulation (PWM) may be used to switch the parallel dc-dc converters so as to decrease both voltage ripple and current ripple. The number of dc-dc converters may be modified to meet the different needs of various electric power systems. A single bi-directional dc-dc converter of the invention may be employed to provide electric power conversion for multiple electric power systems, even where those systems have different power requirements and different power transfer directions.
    • 提供了可以为两个单独的电力系统提供电压转换的双向dc-dc转换器。 两个电力系统可能具有不同的功能,电气要求和电力传输方向。 双向dc-dc转换器可以包括由变压器彼此隔离的背对背双向dc-dc转换器电路。 多个这样的dc-dc转换器可以并联连接以增加功率能力。 可以使用相移脉冲宽度调制(PWM)来切换并联dc-dc转换器,以减小电压纹波和电流纹波。 可以修改dc-dc转换器的数量以满足各种电力系统的不同需求。 本发明的单个双向dc-dc转换器可用于为多个电力系统提供电力转换,即使那些系统具有不同的功率要求和不同的功率传输方向。