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    • 34. 发明授权
    • Permanent magnet rotating electrical machine and permanent magnet motor drive system
    • 永磁旋转电机和永磁电机驱动系统
    • US08334667B2
    • 2012-12-18
    • US12593146
    • 2007-12-07
    • Kazuto SakaiKazuaki Yuuki
    • Kazuto SakaiKazuaki Yuuki
    • H02P3/04
    • H02P21/06H02K1/2766H02P2207/05Y10T29/49009Y10T29/49822
    • A permanent magnet rotating electrical machine capable of conducting a variable speed operation at high output in a wide range from low speed to high speed and improving efficiency and reliability in a wide operating range. Two kinds of permanent magnets having different shapes or different magnetic characteristics are embedded in a rotor core, to form a magnetic pole. The permanent magnets arranged at the magnetic pole include a permanent magnet whose product of coercive force and thickness along a magnetizing direction is small and a permanent magnet whose product of coercive force and thickness along the magnetizing direction is large. A magnetic field created by passing a current to an armature coil for a short time is used to irreversibly magnetize the permanent magnet whose product of coercive force and thickness along magnetizing direction is small, thereby changing a total linkage flux amount, and a positive d-axis current is passed when torque is large.
    • 一种永磁式旋转电机,能够在从低速到高速的宽范围内以高输出进行变速运转,并能在较宽的运行范围内提高效率和可靠性。 将具有不同形状或不同磁特性的两种永磁体嵌入转子铁芯中,以形成磁极。 设置在磁极上的永磁体包括永磁体,其永磁体的矫顽力和沿磁化方向的厚度的乘积小,并且永久磁铁的矫顽力和沿着磁化方向的厚度的乘积大。 使用通过使电流线圈短时间流过电流而产生的磁场,使永久磁铁不可逆地磁化,永久磁铁的矫顽力和沿磁化方向的厚度乘积小,从而改变总的交链磁通量, 当转矩大时,轴电流通过。
    • 35. 发明申请
    • PERMANENT MAGNET ELECTRIC MOTOR
    • 永磁电机
    • US20120091848A1
    • 2012-04-19
    • US13130206
    • 2009-11-19
    • Kazuto SakaiYutaka HashibaNorio TakahashiKazuaki Yuuki
    • Kazuto SakaiYutaka HashibaNorio TakahashiKazuaki Yuuki
    • H02K1/27
    • H02K1/2766
    • An increase of the magnetization current can be prevented during demagnetization and magnetization, and a variable speed operation can be achieved at a high power output over a wide range of from a low speed to a high speed. A rotor (1) is configured by a rotor core (2), a variable magnetic force magnet (3) and a fixed magnetic force magnet (4). A variable magnetic force magnet (3) and a fixed magnetic force magnet (4a) are overlapped in the magnetization direction thereof to form a series of magnets. The series of magnets is located within the rotor core at a position where the magnetization direction is in the direction of a d-axis. On either side of the series of magnets of the variable magnetic force magnet (3) and the fixed magnetic force magnet (4a), fixed magnetic force magnets (4b, 4b) are located at a position where the magnetization direction is in the direction of the d-axis. When the flux linkage of the variable magnetic force magnet is reduced, a current of an armature coil allows a magnetic field to act in the reverse direction to the magnetization direction of the variable magnetic force magnet. When the flux linkage of the variable magnetic force magnet is increased, a current of the armature coil allows a magnetic field to act in the same direction as the magnetization direction of the variable magnetic force magnet.
    • 在退磁和磁化期间可以防止磁化电流的增加,并且可以在从低速到高速的宽范围内的高功率输出下实现可变速度操作。 转子(1)由转子铁芯(2),可变磁力磁铁(3)和固定磁力磁铁(4)构成。 可变磁力磁体(3)和固定磁力磁铁(4a)在其磁化方向上重叠以形成一系列磁体。 一系列磁体位于转子芯内的磁化方向为d轴方向的位置。 在可变磁力磁铁(3)和固定磁力磁铁(4a)的一系列磁铁的两侧,固定磁力磁铁(4b,4b)位于磁化方向为 d轴。 当可变磁力磁铁的磁链减小时,电枢线圈的电流允许磁场沿与可变磁力磁铁的磁化方向相反的方向作用。 当可变磁力磁铁的磁通增加时,电枢线圈的电流允许磁场沿与可变磁力磁铁的磁化方向相同的方向起作用。
    • 37. 发明申请
    • PERMANENT-MAGNET-TYPE ROTATING ELECTRICAL MACHINE AND PERMANENT MAGNET MOTOR DRIVE SYSTEM
    • 永磁式旋转电机和永磁电机驱动系统
    • US20100327689A1
    • 2010-12-30
    • US12918715
    • 2009-02-16
    • Kazuto SakaiKazuaki Yuuki
    • Kazuto SakaiKazuaki Yuuki
    • H02K1/27
    • H02K1/2766H02K1/02H02P21/00H02P21/06H02P27/04H02P2207/05
    • A permanent-magnet-type rotating electrical machine capable of realizing variable-speed operation in a wide range from low speed to high speed at high output and improving, in a wide operating range, efficiency, reliability, and productivity. The rotating electrical machine includes a first permanent magnet whose product of coercive force and magnetizing direction thickness is small and a second permanent magnet whose product of coercive force and magnetizing direction thickness is large, to form a magnetic pole. The product of coercive force and magnetizing direction thickness of the first permanent magnet is equal to or larger than the product of magnetic field strength and magnetizing direction thickness of the second permanent magnet at a no-load operating point. At the magnetic pole, a magnetic field created by a current of an armature coil magnetizes the first permanent magnet, irreversibly changing a flux amount of the first permanent magnet.
    • 一种永磁式旋转电机,能够在较高的输出范围内实现从低速到高速的广泛范围的变速操作,并且在广泛的操作范围,效率,可靠性和生产率方面得到改进。 旋转电机包括矫顽力和磁化方向厚度乘积小的第一永久磁铁和矫顽力和磁化方向厚度乘积大的第二永久磁铁,形成磁极。 第一永久磁铁的矫顽力和磁化方向厚度的乘积等于或大于空载工作点的第二永久磁铁的磁场强度和磁化方向厚度乘积。 在磁极上,由电枢线圈的电流产生的磁场使第一永磁体磁化,从而不可逆地改变第一永久磁铁的磁通量。
    • 38. 发明授权
    • Controller for synchronous machine
    • 同步机控制器
    • US07439703B2
    • 2008-10-21
    • US11808194
    • 2007-06-07
    • Kazuya YasuiKazuaki YuukiKentaro Suzuki
    • Kazuya YasuiKazuaki YuukiKentaro Suzuki
    • H02P27/00H02P1/46H02P1/50H02P3/18H02P6/00H02P23/00H02P25/00
    • H02P21/141H02P21/14H02P21/18H02P21/24H02P2203/11H02P2207/05
    • A controller for a synchronous machine includes: a power converter; a synchronous machine driven by the power converter; a PWM modulation section for controlling the synchronous machine; a current detection section which detects a current conducted to the synchronous machine; a voltage detection section which detects a voltage applied to the synchronous machine; a current variation operation section which operates a current variation during a time interval between timings synchronized with detection sampling in the current detection section; a voltage integration operation section which operates a voltage integration value during a time interval between the same timings as the timings in the current variation operation section; a current variation operation section for a time interval in which all sets are included, defining, as one set, the current variation and the voltage integration value, and operating a current variation during the time interval in which all the sets are included; a voltage integration operation section for the time interval in which all the sets are included, integrating a voltage during the same time interval as the time interval in the current variation section for the time interval in which all the sets are included; and a rotation phase angle assumption section which assumes a rotation phase angle of the synchronous machine.
    • 一种用于同步电机的控制器包括:功率转换器; 由电源转换器驱动的同步电机; 用于控制同步电机的PWM调制部分; 电流检测部,其检测导通到所述同步电机的电流; 电压检测部,其检测施加到所述同步电机的电压; 电流变动动作部,其在与所述当前检测部中的检测取样同步的定时之间的时间间隔内动作电流变动; 电压积分运算部,其在与当前变动运算部中的定时相同的定时之间的时间间隔内动作电压积分值; 一个电流变化操作部分,用于包括所有组的时间间隔,将一个组定义为当前变化和电压积分值,并且在包括所有组的时间间隔期间操作电流变化; 包括所有组的时间间隔的电压积分操作部分,在包括所有组的时间间隔内,将与当前变化部分中的时间间隔相同的时间间隔内的电压积分; 以及呈现同步电机的旋转相位角的旋转相位角假设部。
    • 39. 发明申请
    • Controller for synchronous machine
    • 同步机控制器
    • US20060202481A1
    • 2006-09-14
    • US11356310
    • 2006-02-17
    • Kazuya YasuiKazuaki YuukiKentaro Suzuki
    • Kazuya YasuiKazuaki YuukiKentaro Suzuki
    • H02P9/04
    • H02P21/141H02P21/14H02P21/18H02P21/24H02P2203/11H02P2207/05
    • A controller for a synchronous machine includes: a power converter; a synchronous machine driven by the power converter; a PWM modulation section for controlling the synchronous machine; a current detection section which detects a current conducted to the synchronous machine; a voltage detection section which detects a voltage applied to the synchronous machine; a current variation operation section which operates a current variation during a time interval between timings synchronized with detection sampling in the current detection section; a voltage integration operation section which operates a voltage integration value during a time interval between the same timings as the timings in the current variation operation section; a current variation operation section for a time interval in which all sets are included, defining, as one set, the current variation and the voltage integration value, and operating a current variation during the time interval in which all the sets are included; a voltage integration operation section for the time interval in which all the sets are included, integrating a voltage during the same time interval as the time interval in the current variation section for the time interval in which all the sets are included; and a rotation phase angle assumption section which assumes a rotation phase angle of the synchronous machine.
    • 一种用于同步电机的控制器包括:功率转换器; 由电源转换器驱动的同步电机; 用于控制同步电机的PWM调制部分; 电流检测部,其检测导通到所述同步电机的电流; 电压检测部,其检测施加到所述同步电机的电压; 电流变动动作部,其在与所述当前检测部中的检测取样同步的定时之间的时间间隔内动作电流变动; 电压积分运算部,其在与当前变动运算部中的定时相同的定时之间的时间间隔内动作电压积分值; 一个电流变化操作部分,用于包括所有组的时间间隔,将一个组定义为当前变化和电压积分值,并且在包括所有组的时间间隔期间操作电流变化; 包括所有组的时间间隔的电压积分操作部分,在包括所有组的时间间隔内,将与当前变化部分中的时间间隔相同的时间间隔内的电压积分; 以及呈现同步电机的旋转相位角的旋转相位角假设部。