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    • 3. 发明授权
    • Power transfer device
    • 电力传输装置
    • US06465912B1
    • 2002-10-15
    • US09656745
    • 2000-09-07
    • Fuminori NakamuraShinzo TamaiIsao KamiyamaMasatoshi TakedaHiroshi YamamotoYuji Kuroda
    • Fuminori NakamuraShinzo TamaiIsao KamiyamaMasatoshi TakedaHiroshi YamamotoYuji Kuroda
    • H02B100
    • H02J3/005H02J9/061H02J2009/068Y10T307/647Y10T307/658Y10T307/735
    • A power transfer device includes a first current transferring section connected between a first AC power source and a load, a second current transferring section with first and second switches which have opposite conduction directions, connected in parallel, and connected between a second AC power source and the load; a current detector for detecting a current flowing from the first AC power source to the load; a generator for generating a power transfer signal instructing transfer from the first AC power source to the second AC power source; a current direction estimator for estimating the direction of a current which flows from the first AC power source to the load when the second current transferring section enters the conduction state after a time period; and a conduction signal generator for causing one of the first and second switches to be conductive, so that the current flowing from the first AC power source to the load is cancelled, and, thereafter, causing the other of the first and second switches to be conductive.
    • 电力传输装置包括连接在第一AC电源和负载之间的第一电流传输部分,具有相反导通方向的具有相反导通方向的第一和第二开关的第二电流传输部分,并联连接在第二AC电源和 负载; 电流检测器,用于检测从第一AC电源流向负载的电流; 发电机,用于产生指示从所述第一AC电源向所述第二AC电源的转移的电力传送信号; 电流方向估计器,用于在第一电流传输部分在一段时间段之后进入导通状态时估计从第一AC电源流向负载的电流的方向; 以及导通信号发生器,用于使所述第一和第二开关中的一个导通,使得从所述第一AC电源流向所述负载的电流被消除,并且此后使所述第一和第二开关中的另一个为 导电。
    • 5. 发明申请
    • SYNCHRONOUS-MACHINE STARTING DEVICE
    • 同步起动装置
    • US20120161688A1
    • 2012-06-28
    • US13391947
    • 2009-08-24
    • Shinzo TamaiHisanori TaguchiAkinobu AndoYasuhiko Hosokawa
    • Shinzo TamaiHisanori TaguchiAkinobu AndoYasuhiko Hosokawa
    • H02P1/46
    • H02P1/52H02M5/272H02P1/46
    • A synchronous-machine starting device includes an electric power conversion unit for converting supplied electric power into AC power for supply to the armature of the synchronous machine, a rotor position detection unit for detecting a position of the rotor of the synchronous machine based on an AC voltage in the armature of the synchronous machine detected by an AC voltage detection unit, an electric power conversion control unit for controlling the electric power conversion unit based on the position of the rotor detected by the rotor position detection unit, and an abnormality detection unit detecting a rotation abnormality of the synchronous machine based on the AC voltage detected by the AC voltage detection unit after supply of the field current to the rotor of the synchronous machine is started.
    • 同步机启动装置包括:电力转换单元,用于将所供电的电力转换成用于供给同步电机的电枢的交流电;转子位置检测单元,用于基于AC检测同步电机的转子的位置; 由交流电压检测单元检测到的同步电机的电枢中的电压;电力转换控制单元,用于基于由转子位置检测单元检测到的转子的位置来控制电力转换单元;以及异常检测单元检测 开始基于在向同步电机的转子提供励磁电流之后由AC电压检测单元检测到的AC电压的同步电机的旋转异常。
    • 6. 发明申请
    • SYNCHRONOUS MACHINE STARTING DEVICE
    • 同步机起动装置
    • US20110181220A1
    • 2011-07-28
    • US13122157
    • 2008-10-01
    • Shinzo TamaiYosuke FujiiAkinobu AndoYasuhiko Hosokawa
    • Shinzo TamaiYosuke FujiiAkinobu AndoYasuhiko Hosokawa
    • H02P6/20
    • H02P6/185H02P1/46H02P6/182H02P6/21
    • A synchronous machine starting device includes a power conversion unit for converting supplied power into AC power and supplying the AC power to an armature of a synchronous machine, an AC voltage detection unit for detecting AC voltage supplied to the armature of the synchronous machine, a rotor position detection unit for detecting a rotor position of the synchronous machine, based on the detected AC voltage, and a power conversion control unit for controlling the power conversion portion, based on the detected rotor position. The rotor position detection portion includes a level monitoring unit outputting a first position signal indicating a timing at which a level of AC voltage supplied to the armature of the synchronous machine reaches a prescribed value, based on the detected AC voltage, a feedback operation unit for calculating an error of an estimated phase based on the estimated phase indicating the rotor position and the detected AC voltage, calculating the estimated phase based on the calculated phase error, and outputting a second position signal indicating the calculated estimated phase, and a selector circuit receiving the first position signal or a position signal obtained based on the first position signal, and the second position signal, selecting one of the received two position signals, and outputting the selected signal to the power conversion control unit as a signal indicating the rotor position of the synchronous machine.
    • 同步电机启动装置包括电力转换单元,用于将供电的电力转换为交流电力并将交流电力提供给同步电机的电枢;交流电压检测单元,用于检测供应给同步电机的电枢的交流电压;转子 位置检测单元,用于基于检测到的AC电压来检测同步电机的转子位置;以及功率转换控制单元,用于基于检测到的转子位置来控制电力转换部分。 转子位置检测部包括:电平监视部,基于检测到的交流电压,输出表示提供给同步电机的电枢的交流电压的电平达到规定值的定时的第一位置信号;反馈运算部, 基于表示转子位置和检测出的交流电压的估计相位来计算估计相位的误差,基于计算出的相位误差计算估计相位,并输出表示计算出的推定相位的第二位置信号,以及选择电路接收 所述第一位置信号或基于所述第一位置信号获得的位置信号和所述第二位置信号,选择所接收的两个位置信号中的一个,并将所选择的信号输出到所述功率转换控制单元,作为指示所述第二位置信号的转子位置的信号 同步机。
    • 8. 发明授权
    • Synchronous-machine starting device
    • 同步机起动装置
    • US08872466B2
    • 2014-10-28
    • US13391947
    • 2009-08-24
    • Shinzo TamaiHisanori TaguchiAkinobu AndoYasuhiko Hosokawa
    • Shinzo TamaiHisanori TaguchiAkinobu AndoYasuhiko Hosokawa
    • H02P1/46H02P1/52H02M5/27
    • H02P1/52H02M5/272H02P1/46
    • A synchronous-machine starting device includes an electric power conversion unit for converting supplied electric power into AC power for supply to the armature of the synchronous machine, a rotor position detection unit for detecting a position of the rotor of the synchronous machine based on an AC voltage in the armature of the synchronous machine detected by an AC voltage detection unit, an electric power conversion control unit for controlling the electric power conversion unit based on the position of the rotor detected by the rotor position detection unit, and an abnormality detection unit detecting a rotation abnormality of the synchronous machine based on the AC voltage detected by the AC voltage detection unit after supply of the field current to the rotor of the synchronous machine is started.
    • 同步机启动装置包括:电力转换单元,用于将所供电的电力转换成用于供给同步电机的电枢的交流电;转子位置检测单元,用于基于AC检测同步电机的转子的位置; 由交流电压检测单元检测到的同步电机的电枢中的电压;电力转换控制单元,用于基于由转子位置检测单元检测到的转子的位置来控制电力转换单元;以及异常检测单元检测 开始基于在向同步电机的转子提供励磁电流之后由AC电压检测单元检测到的AC电压的同步电机的旋转异常。
    • 9. 发明授权
    • Apparatus for detecting the amplitude and phase of an a.c. signal
    • 用于检测交流电压的幅度和相位的装置 信号
    • US5808462A
    • 1998-09-15
    • US752316
    • 1996-11-19
    • Toshiyuki FujiiShinzo TamaiHatsuhiko NaitohNaohiro Toki
    • Toshiyuki FujiiShinzo TamaiHatsuhiko NaitohNaohiro Toki
    • G01R19/00G01R19/04G01R25/00G01R31/42H02H3/08H02H3/26
    • G01R25/00G01R19/0053G01R31/42
    • An apparatus for detecting the amplitude and phase of an a.c. signal. The apparatus includes a signal detection circuit for detecting the a.c. signal, a signal splitting circuit for splitting the detected a.c. signal into first and second a.c. signals out of phase with each other by 90.degree.. The signal splitting circuit includes a first order lag circuit having a phase lag, a subtractor, and first and second amplifying circuits. The apparatus also includes a phase compensation circuit coupled to the signal splitting circuit for receiving the first and second a.c. signals from the signal splitting circuit and for advancing the phase of an output signal of the apparatus by the phase lag of the first order lag circuit. The phase compensation circuit also includes an amplitude and phase detection circuit for detecting the amplitude and phase of the detected a.c. signal by implementing a polar coordinate transformation of the first and second a.c. signals received from the signal splitting circuit.
    • 一种用于检测直流电压的振幅和相位的装置。 信号。 该装置包括用于检测直流电压的信号检测电路。 信号,用于分离检测到的交流电平的信号分离电路。 信号进入第一和第二个a.c. 信号异相90度。 信号分离电路包括具有相位滞后的第一级滞后电路,减法器以及第一和第二放大电路。 该装置还包括耦合到信号分离电路的相位补偿电路,用于接收第一和第二直流 来自信号分离电路的信号,并且用于使装置的输出信号的相位提前一阶滞后电路的相位滞后。 相位补偿电路还包括一个幅度和相位检测电路,用于检测检测到的交流电的幅度和相位。 通过实施第一和第二等角的极坐标变换来发出信号。 从信号分离电路接收的信号。