利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

85 条记录 (耗时 0.037 秒)

    Doubly-Fed Generator and Doubly-Fed Electric Machine
    51.
    发明申请
    Doubly-Fed Generator and Doubly-Fed Electric Machine 有权
    双馈发电机和双馈电机

    公开(公告)号：US20130241463A1

    公开(公告)日：2013-09-19

    申请号：US13421259

    申请日：2012-03-15

    申请人： Akira Bando ,  Masaya Ichinose ,  Yasuhiro Kiyofuji ,  Yasuaki Nakayama

    发明人： Akira Bando ,  Masaya Ichinose ,  Yasuhiro Kiyofuji ,  Yasuaki Nakayama

    IPC分类号： H02P27/04

    CPC分类号： H02H7/065 ,  H02P9/007 ,  H02P9/102 ,  H02P2101/10 ,  H02P2101/15

    摘要： The excitation overcurrent detection unit for the doubly-fed electric machine is provided with a function to determine an excitation current magnitude relationship among three phases. The firing pulse is held to on-state or off-state to cause the largest-current phase and the second-largest-current phase to charge the DC capacitor by the operation of diodes. The conduction ratio of the third-largest-current phase or minimum current phase is controlled according to the detected current value to protect against a possible short-circuit across the DC capacitor. When the voltage of the DC capacitor exceeds a preset value, the voltage is suppressed by operating active or passive power devices.

    摘要翻译： 用于双馈电机的励磁过电流检测单元具有确定三相之间的励磁电流大小关系的功能。 点火脉冲保持在导通状态或截止状态，以通过二极管的操作使最大电流相位和第二大电流相位对直流电容器充电。 根据检测到的电流值控制第三大电流相位或最小电流相位的导通比，以防止跨越直流电容器的可能的短路。 当直流电容器的电压超过预设值时，通过操作有源或无源功率器件来抑制电压。

    Semiconductor Power Conversion Apparatus
    52.
    发明申请
    Semiconductor Power Conversion Apparatus 有权
    半导体电源转换装置

    公开(公告)号：US20120170333A1

    公开(公告)日：2012-07-05

    申请号：US13420718

    申请日：2012-03-15

    申请人： Akira Bando ,  Yasuhiro Kiyofuji ,  Masaya Ichinose ,  Hiromitsu Sakai ,  Yasuhiro Imazu

    发明人： Akira Bando ,  Yasuhiro Kiyofuji ,  Masaya Ichinose ,  Hiromitsu Sakai ,  Yasuhiro Imazu

    IPC分类号： H02M7/537

    CPC分类号： H02M7/5395 ,  H02M1/14

    摘要： A commanded negative-sequence current is added to a commanded current so as to suppress double-frequency pulsation on the DC side. The commanded negative-sequence current is found from three values (i.e., the detected value of positive-sequence voltage vector on the power-supply side, the detected value of negative-sequence voltage vector, and a commanded positive-sequence current). Thus, the pulsations which occur on the DC side of a semiconductor power converter and which have a frequency double the power-supply frequency are suppressed even when the AC power supply is at fault while assuring stability of the current control system, thus permitting stable and continuous operation.

    摘要翻译： 对指令电流加上指令的负序电流，以抑制直流侧的双频脉动。 从三个值（即，电源侧的正序电压矢量的检测值，负序电压矢量的检测值，以及指令的正序电流）得到指令的负序电流。 因此，即使在交流电源故障的同时，即使在确保电流控制系统的稳定性的同时也抑制了在半导体功率转换器的DC侧产生的脉冲，并且其频率倍增了电源频率，因此允许稳定和 连续运行

    Electrical rotating machine control unit and power generation system
    59.
    发明授权
    Electrical rotating machine control unit and power generation system 失效
    电动旋转机控制单元和发电系统

    公开(公告)号：US07157804B2

    公开(公告)日：2007-01-02

    申请号：US11360874

    申请日：2006-02-23

    申请人： Mamoru Kimura ,  Motoo Futami ,  Masaya Ichinose ,  Kazumasa Ide ,  Kazuhiro Imaie

    发明人： Mamoru Kimura ,  Motoo Futami ,  Masaya Ichinose ,  Kazumasa Ide ,  Kazuhiro Imaie

    IPC分类号： H02P9/10

    CPC分类号： H02P21/14 ,  H02P9/007 ,  H02P9/42 ,  H02P21/24 ,  H02P2101/15 ,  H02P2207/073

    摘要： Because of the necessity of resolver for detecting a rotating position, which is very expensive, and noise suppression of the rotating position signal line on a doubly-fed machine, cost increase of the generator and reduced reliability due to possible failures are inevitable. In order to solve such problem, a generation system in the present invention is equipped with an exciter that estimates the slip frequency of the doubly-fed machine from each primary current I1 and voltage V1 and secondary current I2 and voltage V2 of the doubly-fed machine and excites the secondary of the doubly-fed machine at the estimated slip frequency.

    摘要翻译： 由于需要旋转变压器检测非常昂贵的旋转位置，并且双馈机器上的旋转位置信号线的噪声抑制，发电机的成本增加和由于可能的故障而导致的可靠性降低是不可避免的。 为了解决这样的问题，本发明的发电系统配备有从每个初级电流I 1 1和电压V 1估算双馈机器的转差频率的励磁机构 和双馈机器的二次电流I 2 2和电压V 2 2，并且以估计的滑差频率激励双馈机器的次级。

    Wind turbine generator system
    60.
    发明授权
    Wind turbine generator system 有权
    风力发电系统

    公开(公告)号：US07095130B2

    公开(公告)日：2006-08-22

    申请号：US10996645

    申请日：2004-11-23

    申请人： Masaya Ichinose ,  Motoo Futami ,  Hiromitsu Sakai

    发明人： Masaya Ichinose ,  Motoo Futami ,  Hiromitsu Sakai

    IPC分类号： H02P9/00 ,  H02P9/46

    CPC分类号： H02P9/007 ,  F03D7/026 ,  F03D9/255 ,  F05B2270/337 ,  H02P9/10 ,  H02P2101/15 ,  Y02E10/723 ,  Y10T307/735

    摘要： To shorten a startup interval to reach a synchronizing condition, a phase difference and an amplitude difference between the grid voltage and the stator voltage of one phase of a winding are obtained. The difference in amplitude is decreased prior to or in parallel to synchronizing the stator voltage with the grid voltage. The calculated compensation phase compensation value is used as an initial value for synchronizing at the next synchronizing operation.

    摘要翻译： 为了缩短启动间隔以达到同步状态，获得了绕组的一相的电网电压和定子电压之间的相位差和振幅差。 在使定子电压与电网电压同步之前或之后，振幅的差异减小。 计算出的补偿相位补偿值用作在下一个同步操作下进行同步的初始值。