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    Method of estimating a rotor position of synchronous motor, method of controlling synchronous motor with no position sensor and a controller of synchronous motor
    1.
    发明授权
    Method of estimating a rotor position of synchronous motor, method of controlling synchronous motor with no position sensor and a controller of synchronous motor 有权
    估算同步电机转子位置的方法，无位置传感器同步电机控制方法和同步电机控制器

    公开(公告)号：US06396229B1

    公开(公告)日：2002-05-28

    申请号：US09654086

    申请日：2000-09-01

    申请人： Kiyoshi Sakamoto ,  Tsunehiro Endou ,  Naohiko Takahashi ,  Haruo Miura ,  Hiroshi Fujii

    发明人： Kiyoshi Sakamoto ,  Tsunehiro Endou ,  Naohiko Takahashi ,  Haruo Miura ,  Hiroshi Fujii

    IPC分类号： H02P618

    CPC分类号： H02P6/18 ,  H02P21/18 ,  H02P2207/05

    摘要： In a method of accurately estimating the rotor position of a synchronous motor having saliency from observable quantities, a control system for adjusting an output frequency of an inverter on the basis of a value of axis shift of the synchronous motor to operate the motor synchronously with the output frequency is provided with an induced voltage estimating/axis shift operating unit. Currents resulting from conversion of detection currents on a control axis, voltage commands to be inputted to an inverse converter and a speed command are inputted to the operating unit to estimate an induced voltage of the motor 2 and determine the axis shift from a phase of the estimated induced voltage. By using an electrical constant Lq of inductance, a voltage drop across the inductance is determined by the product of a motor speed command and magnitude of motor current. The voltage drop is a virtual quantity that does not depend on the motor rotor position. A vector of the virtual quantity is so introduced as not to change a phase of the original induced voltage.

    摘要翻译： 在以可观测量准确估计具有显着性的同步电动机的转子位置的方法中，基于同步电动机的轴移动值来调整逆变器的输出频率的控制系统，以与电动机同步地操作电动机 输出频率设置有感应电压估计/轴移动操作单元。 控制轴上的检测电流转换所产生的电流，输入到逆变换器的电压指令和速度指令被输入到运算单元，以估计电动机2的感应电压，并从 估计感应电压。 通过使用电感的电常数Lq，电感上的电压降由电机速度指令和电机电流的大小决定。 电压降是不依赖于电机转子位置的虚拟量。 如此引入虚拟量的矢量不改变原始感应电压的相位。

    Position-sensorless controlling method of synchronous motor
    2.
    发明授权
    Position-sensorless controlling method of synchronous motor 有权
    同步电机无位置传感器控制方法

    公开(公告)号：US06462492B1

    公开(公告)日：2002-10-08

    申请号：US09655490

    申请日：2000-09-05

    申请人： Kiyoshi Sakamoto ,  Tsunehiro Endou ,  Naohiko Takahashi ,  Haruo Miura

    发明人： Kiyoshi Sakamoto ,  Tsunehiro Endou ,  Naohiko Takahashi ,  Haruo Miura

    IPC分类号： H02P608

    CPC分类号： H02P6/18

    摘要： There is provided a control method capable of stably rotating a synchronous motor synchronously with an output frequency even when a phase error between a real rotary axis and a control rotary axis is large. In a phase error operating unit, from the magnitude of the motor current, the magnitude of the motor voltage, the phase difference between the motor current and the motor voltage, and the motor constants, the phase difference between the motor current and the real rotary axis is determined as the first phase difference, and the phase difference between the motor current and the virtual rotary axis is determined as the second phase difference. The difference between the first and second phase differences is defined as the phase error, and the estimation position is so modified as to make the phase error zero.

    摘要翻译： 即使在实际旋转轴与控制旋转轴之间的相位误差大的情况下，也能够提供与输出频率同步地稳定地旋转同步电动机的控制方法。 在相位误差运算单元中，根据电动机电流的大小，电动机电压的大小，电动机电流与电动机电压之间的相位差，以及电动机常数，电动机电流与实际转速之间的相位差 轴被确定为第一相位差，并且电动机电流和虚拟旋转轴之间的相位差被确定为第二相位差。 第一相位差和第二相位差之间的差定义为相位误差，估计位置被修改为使相位误差为零。

    Wind Turbine Generator System
    5.
    发明申请
    Wind Turbine Generator System 有权
    风力发电机系统

    公开(公告)号：US20130309093A1

    公开(公告)日：2013-11-21

    申请号：US13983208

    申请日：2011-02-04

    申请人： Takuji Yanagibashi ,  Takashi Matsunobu ,  Tsutomu Hasegawa ,  Kiyoshi Sakamoto ,  Kenichi Azegami

    发明人： Takuji Yanagibashi ,  Takashi Matsunobu ,  Tsutomu Hasegawa ,  Kiyoshi Sakamoto ,  Kenichi Azegami

    IPC分类号： F01D25/12

    CPC分类号： F01D25/12 ,  F03D9/25 ,  F03D13/20 ,  F03D13/25 ,  F03D80/60 ,  F05B2260/20 ,  F05B2260/232 ,  Y02E10/725 ,  Y02E10/726 ,  Y02E10/727 ,  Y02E10/728

    摘要： According to the present invention, a wind turbine generator system is provided which can not only remove the influence of salt damage in case the system is established off-shore, but even if the facility becomes larger, which can also cool equipment and the generator provided in the tower and can reduce the possibility of decreasing power generation efficiency. The wind turbine generator system of the present invention comprising a rotor having a hub and blades; a generator connected with the rotor by way of a main shaft connected with the hub; a nacelle which contains at least the generator and supports the rotor pivotally by way of the main shaft; a tower on a top of which the nacelle is supported, and opposite to the top the tower is fixed to a base, wherein a heat exchanger is provided at the tower close to the base and cooling medium passes through the heat exchanger by way of a pipe arrangement, and thereby the heat of the cooling medium and the heat of air inside the tower are exchanged and the air inside the tower is cooled.

    摘要翻译： 根据本发明，提供了一种风力发电机系统，其不仅能够在系统建立在海上的情况下消除盐损害的影响，而且即使设备变大，也可以冷却设备并且提供发电机 在塔内可以降低发电效率降低的可能性。 本发明的风力涡轮发电机系统包括具有毂和叶片的转子; 发电机通过与轮毂连接的主轴与转子连接; 至少包含发电机并通过主轴枢转地支撑转子的机舱; 在其顶部支撑有机舱并与顶部相对的塔的塔被固定到基座，其中在靠近基座的塔架处设置热交换器，并且冷却介质通过热交换器通过 由此，冷却介质的热量和塔内的空气的热量被更换，塔内的空气被冷却。

    Electric power conversion device, compressor motor with the device, and air conditioner with the motor
    7.
    发明授权
    Electric power conversion device, compressor motor with the device, and air conditioner with the motor 失效
    电力转换装置，具有该装置的压缩机电动机，以及具有电动机的空调

    公开(公告)号：US08305020B2

    公开(公告)日：2012-11-06

    申请号：US12388762

    申请日：2009-02-19

    申请人： Takahiro Suzuki ,  Yasuo Notohara ,  Kiyoshi Sakamoto

    发明人： Takahiro Suzuki ,  Yasuo Notohara ,  Kiyoshi Sakamoto

    IPC分类号： H02H7/08

    CPC分类号： H02M7/53873 ,  H02M1/32 ,  H02M7/5395 ,  H02M2001/0009

    摘要： The device is provided with an electric power conversion circuit including switching elements for converting a DC electric power to an AC electric power, a load connected to an output side of the electric power conversion circuit, means for detecting a current flowing through a DC side in the electric power conversion circuit, a voltage command value preparing means for controlling the operation of the switching elements in the electric power conversion circuit and a wire breaking detecting means. The wire breaking detection means judges a wire breaking in the load or an abnormality of any of the switching elements in the electric power conversion circuit by making use of a DC current detection value in a period when a current of maximum voltage phase or of voltage minimum phase of the electric power conversion circuit is flowing in a DC current.

    摘要翻译： 该装置设置有电力转换电路，该电力转换电路包括用于将DC电力转换为AC电力的开关元件，连接到电力转换电路的输出侧的负载，用于检测流过DC侧的电流的装置 电力转换电路，用于控制电力转换电路中的开关元件的动作的电压指令值准备单元以及断线检测单元。 断线检测装置通过在最大电压相位或电压最小值的电流的周期内利用直流电流检测值来判断负载中的断线或电力转换电路中的任何开关元件的异常 电力转换电路的相位在直流电流中流动。

    Developing method and a developer for electrophotography
    8.
    发明授权
    Developing method and a developer for electrophotography 失效
    显影方法和电子照相显影剂

    公开(公告)号：US06365310B1

    公开(公告)日：2002-04-02

    申请号：US08882820

    申请日：1997-06-26

    申请人： Kiyoshi Sakamoto ,  Kazuhito Wada

    发明人： Kiyoshi Sakamoto ,  Kazuhito Wada

    IPC分类号： G03G910

    CPC分类号： G03G9/00 ,  G03G9/10 ,  G03G9/107 ,  G03G9/113 ,  G03G9/1133 ,  G03G9/1135 ,  G03G9/1136

    摘要： A developer for electrophotography comprises toner particles and carrier particles. The carrier particles comprise at least two kinds of carriers particles having different charge giving characteristics onto the toner particles. Plural kinds of carrier particles having different charge giving characteristics act on one another and on the toner particles.

    摘要翻译： 用于电子照相的显影剂包括调色剂颗粒和载体颗粒。 载体颗粒包含具有不同电荷的至少两种载体颗粒，赋予调色剂颗粒上的特征。 具有不同电荷赋予特性的多种载体颗粒彼此和调色剂颗粒起作用。

    Apparatus for plunger replacement in a molding machine while the molding machine is in operation
    10.
    发明授权
    Apparatus for plunger replacement in a molding machine while the molding machine is in operation 失效
    在成型机运行时在成型机中更换柱塞的装置

    公开(公告)号：US4957530A

    公开(公告)日：1990-09-18

    申请号：US347644

    申请日：1989-05-05

    申请人： Sigezo Fujii ,  Tsuneya Uesugi ,  Kiyoshi Sakamoto

    发明人： Sigezo Fujii ,  Tsuneya Uesugi ,  Kiyoshi Sakamoto

    IPC分类号： C03B11/02 ,  C03B11/16

    CPC分类号： C03B11/02 ,  C03B11/16

    摘要： A molding machine having a plunger replacement apparatus is disclosed. Molding operation of the molding machine for a plunger requiring replacement is only discontinued, and the plunger requiring replacement is taken out to a plunger replacing position through a reciprocating mechanism. Moving yokes are locked by locking mechanisms to fixed yokes at the pressing and plunger replacing positions. The position of the plunger is always held constant during the process of replacement at the plunger replacing position and also when the plunger is returned to the pressing position. When the plunger requiring replacement is taken out in a plunger replacing position, molding operation for the molding machine is continued by using the remaining plungers, thereby minimizing possible drop in molding operation productivity and preventing undesirable changes in temperature distribution conditions.

    摘要翻译： 公开了一种具有柱塞更换装置的成型机。 仅需要更换的柱塞的成形机的成型操作才被停止，并且需要更换的柱塞通过往复机构被取出到柱塞更换位置。 移动轭被锁定机构锁定在按压和柱塞更换位置的固定轭。 在柱塞更换位置的更换过程中以及当柱塞返回到按压位置时，柱塞的位置总是保持恒定。 当需要更换的柱塞在柱塞更换位置被取出时，通过使用剩余的柱塞继续进行成型机的成型操作，从而最小化模制操作生产率的可能降低并防止温度分布条件的不期望的变化。