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108 条记录 (耗时 0.036 秒)

    Phase synchronization system for connecting a power converter to a power distribution system
    1.
    发明授权
    Phase synchronization system for connecting a power converter to a power distribution system 有权
    用于将功率转换器连接到配电系统的相位同步系统

    公开(公告)号：US06304468B2

    公开(公告)日：2001-10-16

    申请号：US09748268

    申请日：2000-12-27

    申请人： Masaya Ichinose ,  Motoo Futami ,  Shigeta Ueda ,  Kazuo Suzuki ,  Akira Maekawa ,  Yasuhiro Kiyofuji

    发明人： Masaya Ichinose ,  Motoo Futami ,  Shigeta Ueda ,  Kazuo Suzuki ,  Akira Maekawa ,  Yasuhiro Kiyofuji

    IPC分类号： H02H7122

    CPC分类号： H02J3/32 ,  Y10T307/735

    摘要： A power converter system includes: a circuit breaker having one terminal connected to a power system and another terminal connected to a load; a transformer for interconnection; a power converter; and a controller for controlling the power converter, wherein, during a return to grid connected operation, the power converter is controlled such that the phase of an output voltage of the power converter matches the phase of the system voltage, and the circuit breaker is closed, so as to prevent an overcurrent during a changeover from the self commutated operation to the grid connected operation of the power converter.

    摘要翻译： 一种电力转换器系统，包括：一个断路器，其一个端子连接到电力系统，另一个端子连接到负载; 互连变压器 电源转换器; 以及用于控制所述功率转换器的控制器，其中，在返回并网运行期间，所述功率转换器被控制为使得所述功率转换器的输出电压的相位与所述系统电压的相位匹配，并且所述断路器闭合 ，以防止在从自整换操作切换到电力转换器的电网连接操作期间的过电流。

    Power converting device and method for controlling the same
    2.
    发明授权
    Power converting device and method for controlling the same 有权
    电力转换装置及其控制方法

    公开(公告)号：US07643317B2

    公开(公告)日：2010-01-05

    申请号：US11964274

    申请日：2007-12-26

    申请人： Shuji Katoh ,  Yasuhiro Kiyofuji ,  Shoichiro Koseki ,  Tomomichi Ito ,  Motoo Futami

    发明人： Shuji Katoh ,  Yasuhiro Kiyofuji ,  Shoichiro Koseki ,  Tomomichi Ito ,  Motoo Futami

    IPC分类号： H02M1/15 ,  H02M3/155

    CPC分类号： H02J3/01 ,  Y02E40/40

    摘要： In a system to which a fluctuating load is connected, compensating for fluctuation in voltage harmonics at the load connecting point and fluctuation in system current harmonics has been difficult for a power converting device connected in parallel with the load. To resolve the problem, a power converting device connected in parallel with a fluctuating load includes: a Fourier series expansion unit which executes Fourier series expansion to load current by use of a reference sine wave in sync with a system and thereby outputs Fourier coefficients; and a fundamental component calculating unit which calculates a positive phase active fundamental component of the load current from the Fourier coefficients. A current instruction of the power converting device is generated by subtracting the fundamental current from the load current. With the current instruction, the fluctuations in system current harmonics and in voltage harmonics at the connecting point can be compensated for.

    摘要翻译： 在连接波动负载的系统中，与负载并联连接的电力转换装置难以补偿负载连接点的电压谐波的波动和系统电流谐波的波动。 为了解决该问题，与波动负载并联连接的电力转换装置包括：傅立叶级数扩展单元，其通过使用与系统同步的参考正弦波来执行傅里叶级数展开以加载电流，从而输出傅立叶系数; 以及从傅立叶系数计算负载电流的正相位有源基波分量的基波分量计算单元。 通过从负载电流中减去基波电流来产生电力转换装置的电流指令。 利用当前的指令，可以补偿系统电流谐波和连接点电压谐波的波动。

    POWER CONVERTING DEVICE AND METHOD FOR CONTROLLING THE SAME
    3.
    发明申请
    POWER CONVERTING DEVICE AND METHOD FOR CONTROLLING THE SAME 有权
    电力转换装置及其控制方法

    公开(公告)号：US20090168474A1

    公开(公告)日：2009-07-02

    申请号：US11964274

    申请日：2007-12-26

    申请人： Shuji Katoh ,  Yasuhiro Kiyofuji ,  Shoichiro Koseki ,  Tomomichi Ito ,  Motoo Futami

    发明人： Shuji Katoh ,  Yasuhiro Kiyofuji ,  Shoichiro Koseki ,  Tomomichi Ito ,  Motoo Futami

    IPC分类号： H02M1/00

    CPC分类号： H02J3/01 ,  Y02E40/40

    摘要： In a system to which a fluctuating load is connected, compensating for fluctuation in voltage harmonics at the load connecting point and fluctuation in system current harmonics has been difficult for a power converting device connected in parallel with the load. To resolve the problem, a power converting device connected in parallel with a fluctuating load includes: a Fourier series expansion unit which executes Fourier series expansion to load current by use of a reference sine wave in sync with a system and thereby outputs Fourier coefficients; and a fundamental component calculating unit which calculates a positive phase active fundamental component of the load current from the Fourier coefficients. A current instruction of the power converting device is generated by subtracting the fundamental current from the load current. With the current instruction, the fluctuations in system current harmonics and in voltage harmonics at the connecting point can be compensated for.

    摘要翻译： 在连接波动负载的系统中，与负载并联连接的电力转换装置难以补偿负载连接点的电压谐波的波动和系统电流谐波的波动。 为了解决该问题，与波动负载并联连接的电力转换装置包括：傅立叶级数扩展单元，其通过使用与系统同步的参考正弦波来执行傅立叶级数展开以加载电流，从而输出傅里叶系数; 以及从傅立叶系数计算负载电流的正相位有源基波分量的基波分量计算单元。 通过从负载电流中减去基波电流来产生电力转换装置的电流指令。 利用当前的指令，可以补偿系统电流谐波和连接点电压谐波的波动。

    Power conversion system
    6.
    发明授权
    Power conversion system 失效
    电源转换系统

    公开(公告)号：US07456519B2

    公开(公告)日：2008-11-25

    申请号：US11058355

    申请日：2005-02-16

    申请人： Kenji Takeda ,  Masaya Ichinose ,  Motoo Futami ,  Masahiro Komachiya

    发明人： Kenji Takeda ,  Masaya Ichinose ,  Motoo Futami ,  Masahiro Komachiya

    IPC分类号： H02J7/00

    CPC分类号： H02M1/36 ,  H02J9/062 ,  H02M3/158 ,  H02M7/53871 ,  Y02B90/14 ,  Y10T307/615 ,  Y10T307/62 ,  Y10T307/625

    摘要： A power conversion system includes a power generating apparatus, an auxiliary generation device that consumes power, an auxiliary-devised power source, a secondary battery device chargeable and dischargeable with power generated by the power generating apparatus, a bilateral DC/AC inverter that causes the power generating apparatus to cooperate with a commercial AC power source, and a switch unit provided between the commercial AC power source and the bilateral DC/AC inverter, DC terminals of the bilateral DC/AC inverter and an input of the auxiliary-devised power source, when the power generating apparatus generates no power, the switch unit is opened, the bilateral DC/AC inverter is stopped, and the voltage supplied from the secondary battery device to the auxiliary-devised power source is lower than that supplied from the secondary battery device to the auxiliary-devised power source when the power generating apparatus generates power.

    摘要翻译： 电力转换系统包括发电装置，消耗电力的辅助发电装置，辅助设计电源，可由发电装置产生的电力进行充电和放电的二次电池装置;双向DC / AC逆变器， 与商用AC电源配合的发电装置，以及设置在商用AC电源和双向DC / AC逆变器之间的开关单元，双向DC / AC逆变器的DC端子和辅助设计电源的输入 当发电装置不产生电力时，开关单元断开，双向DC / AC逆变器停止，并且从二次电池装置向辅助设计电源供给的电压低于从二次电池供给的电压 当发电设备发电时，设备到辅助设计电源。

    Power Generation Apparatus Using AC Energization Synchronous Generator And Method of Controlling The Same
    7.
    发明申请
    Power Generation Apparatus Using AC Energization Synchronous Generator And Method of Controlling The Same 有权
    采用交流励磁同步发电机的发电装置及其控制方法

    公开(公告)号：US20080143113A1

    公开(公告)日：2008-06-19

    申请号：US12031262

    申请日：2008-02-14

    申请人： Masaya Ichinose ,  Motoo Futami ,  Shinya Oohara ,  Kazuhiro Imaie ,  Mitsugu Matsutake

    发明人： Masaya Ichinose ,  Motoo Futami ,  Shinya Oohara ,  Kazuhiro Imaie ,  Mitsugu Matsutake

    IPC分类号： H02P9/04 ,  H02J3/00

    CPC分类号： H02P9/42 ,  H02P9/007 ,  H02P2101/15

    摘要： A power generation apparatus and method includes an AC energization synchronous generator, a switching device for connecting to a network disposed on a stator side of the AC energization synchronous generator, an energizing device for applying a variable frequency AC to a secondary winding of the AC energization synchronous generator, and a first voltage detection unit for detecting a voltage of the switching device on the stator side. A rotational frequency of the AC energization synchronous generator is estimated or calculated based on a frequency of a stator side voltage of the switching device, while the switching device is open.

    摘要翻译： 一种发电装置和方法，包括AC通电同步发电机，用于连接到设置在交流通电同步发电机的定子侧的网络的开关装置，用于向交流通电的次级绕组施加变频AC的通电装置 同步发电机和用于检测定子侧的开关装置的电压的第一电压检测单元。 交流通电同步发电机的转速在切换装置断开时，基于开关装置的定子侧电压的频率来推定或计算。

    Power generation apparatus using AC energization synchronous generator and method of controlling the same
    9.
    发明授权
    Power generation apparatus using AC energization synchronous generator and method of controlling the same 有权
    使用交流通电同步发电机的发电装置及其控制方法

    公开(公告)号：US07332894B2

    公开(公告)日：2008-02-19

    申请号：US11412987

    申请日：2006-04-28

    申请人： Masaya Ichinose ,  Motoo Futami ,  Shinya Oohara ,  Kazuhiro Imaie ,  Mitsugu Matsutake

    发明人： Masaya Ichinose ,  Motoo Futami ,  Shinya Oohara ,  Kazuhiro Imaie ,  Mitsugu Matsutake

    IPC分类号： H02P9/44

    CPC分类号： H02P9/42 ,  H02P9/007 ,  H02P2101/15

    摘要： In a power generation apparatus equipped with an AC energization synchronous generator, when energization of a secondary winding starts to conduct connecting to the network of the AC energization synchronous generator to a network voltage, energization of the secondary winding starts at a fixed frequency and a slip frequency is calculated from a difference between a frequency of the network voltage and a resultant stator voltage frequency. Thereafter, energization starts at the calculated slip frequency and a voltage having a frequency generally coincident with the network frequency is output to the stator to incorporate the generator to the network. A phase is adjusted to make zero a phase difference when the rotation speed changes or the phases become different.

    摘要翻译： 在配备有交流励磁同步发电机的发电装置中，当次级绕组的通电开始将交流通电同步发电机的网络连接到网络电压时，次级绕组的通电以固定的频率和滑动开始 频率根据网络电压的频率与合成的定子电压频率之间的差计算。 此后，以计算的滑差频率开始通电，并且将具有与网络频率大致一致的频率的电压输出到定子以将发电机并入网络。 当转速变化或相变不同时，调整相位使零相位差。