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    • 5. 发明授权
    • Method of manufacturing a rotor for a synchronous reluctance motor
    • 制造用于同步磁阻电机的转子的方法
    • US06769167B2
    • 2004-08-03
    • US10045147
    • 2002-01-15
    • Kyung Hun LeeJae Yoon OhDal Ho Cheong
    • Kyung Hun LeeJae Yoon OhDal Ho Cheong
    • H02K1500
    • H02K1/246H02K15/022H02K19/103Y10T29/49009Y10T29/49012Y10T29/49078Y10T29/49943Y10T29/49956Y10T29/53161
    • A rotor for a synchronous reluctance motor of flux barrier type and manufacturing method thereof constructs a rotor for a synchronous reluctance motor by forming a magnetic core steel plate of disc shape on which a shaft hole is formed at center part, and a plurality of flux barrier groups are formed centering around the shaft hole and automatic stacking points are formed; manufacturing a plate stacked body by stacking the core steel plates continuously using the automatic stacking points; disposing end plates on both sides of the plate stacked body; and coupling the end plates and the plate stacked body integrally with each other as inserting a coupling member into the flux barrier groups, whereby the manufacturing process can be made easy and automatic stacking of the core steel plates can be made regardless of the types such as a skew type or a non skew type, and therefore manufacturing cost is reduced and the rotor can be mass produced.
    • 用于磁阻型的同步磁阻电动机的转子及其制造方法通过在中心部分形成有轴孔的圆盘形磁芯钢构成同步磁阻电动机的转子,以及多个磁通屏障 组以轴孔为中心形成,形成自动堆积点; 通过使用自动堆叠点连续堆叠芯钢板来制造板堆叠体; 在板堆叠体的两侧设置端板; 并且将端板和板层叠体彼此一体地连接起来,将耦合构件插入到磁通屏障组中,由此可以容易地制造工艺,并且可以进行芯钢板的自动堆叠,而不管类型如 偏斜型或非偏斜型,因此制造成本降低,转子可以批量生产。
    • 6. 发明授权
    • System for controlling motor and method for the same
    • 电机控制系统及方法
    • US06735284B2
    • 2004-05-11
    • US10412249
    • 2003-04-14
    • Dal Ho CheongJune Hee WonJae Yoon OhKyung Hoon Lee
    • Dal Ho CheongJune Hee WonJae Yoon OhKyung Hoon Lee
    • H02P534
    • H02P25/08H02P21/05H02P21/18H02P21/26
    • The present invention relates to a system and a method for controlling a motor. A rotation/fixed coordinates converter converts a reference magnetic flux voltage and a reference torque voltage of a rotation coordinates system into data of a fixed coordinates system, and outputs the data to the three-phase voltage generator. A fixed/rotation coordinates converter converts a three-phase current applied from the inverter to the motor into a two-phase current. An estimation unit estimates a rotation angle and rotor speed of the motor upon receiving currents applied to the fixed/rotation coordinates converter. A control block receives the estimated rotation angle and the estimated speed from the estimation unit, and outputs the reference magnetic flux voltage and the reference torque voltage of the motor to the rotation/fixed coordinates converter to compensate an error caused by loads generated when driving the motor. Thus, the control system greatly reduces noise and vibrations of a compressor without being affected by loads generated by compression/expansion strokes of the compressor at a startup time of the motor, and prevents a performance of the compressor from being deteriorated.
    • 本发明涉及一种用于控制电动机的系统和方法。 旋转/固定坐标转换器将参考磁通电压和旋转坐标系的参考转矩电压转换为固定坐标系的数据,并将该数据输出到三相电压发生器。 固定/旋转坐标转换器将从逆变器施加到电动机的三相电流转换为两相电流。 估计单元在接收到施加到固定/旋转坐标转换器的电流时估计电动机的旋转角度和转子速度。 控制块从估计单元接收估计的旋转角度和估计速度,并将该电机的基准磁通电压和基准转矩电压输出到旋转/固定坐标转换器,以补偿由驱动 发动机。 因此,控制系统大大降低了压缩机的噪声和振动,而不受压缩机在电动机启动时的压缩/膨胀冲程产生的负荷的影响,并且防止压缩机的性能恶化。
    • 8. 发明授权
    • Apparatus for controlling rotation speed of motor
    • 用于控制电机转速的装置
    • US06646409B2
    • 2003-11-11
    • US10038659
    • 2002-01-08
    • June Hee WonDal Ho CheongJae Yoon OhKyung Hoon Lee
    • June Hee WonDal Ho CheongJae Yoon OhKyung Hoon Lee
    • H02P540
    • H02P25/089
    • An apparatus for controlling the rotation speed of a motor, which is capable of controlling the rotation speed and the torque of the motor by detecting the input voltage and the input current of the motor without using a sensor for detecting the position of the rotor of the motor, is provided. The apparatus for controlling the rotation speed of a motor includes a synchronous/stationary coordinate converter for comparing the reference speed of a motor with the estimated speed of the motor and outputting reference magnetic flux component current and reference torque component current for compensating for an error value according to the comparison result as the reference voltage of an &agr; axis and the reference voltage of a &bgr; axis in a stationary coordinate system, a two phase current generator for receiving three phase current detected when the motor rotates and outputting magnetic flux component current and torque component current, a speed/position estimation operator for estimating the position and the rotation speed of a rotor in the motor on the basis of the reference of the &agr; axis, the reference voltage of the &bgr; axis, the current of the &agr; axis, the current of the &bgr; axis, and reference speed and controlling the rotation speed and the torque of the motor.
    • 一种用于控制电动机的转速的装置,其能够通过检测电动机的输入电压和输入电流而不使用用于检测电动机的转子位置的传感器来控制电动机的转速和转矩 电机。 用于控制电动机的转速的装置包括同步/静止坐标转换器,用于将电动机的参考速度与电动机的估计速度进行比较,并输出参考磁通分量电流和用于补偿误差值的参考转矩分量电流 根据比较结果作为α轴的参考电压和固定坐标系中的β轴的参考电压;两相电流发生器,用于接收电动机旋转时检测到的三相电流并输出磁通量分量电流和转矩 分量电流,用于基于α轴的参考,β轴的参考电压,α轴的电流,用于估计马达中的转子的位置和转速的速度/位置估计运算器 β轴的电流和参考速度,并控制电机的转速和转矩 。
    • 9. 发明授权
    • Voltage compensating apparatus and method for 3-phase inverter employing four switches
    • 采用四个开关的三相逆变器的电压补偿装置和方法
    • US06388903B2
    • 2002-05-14
    • US09852036
    • 2001-05-10
    • Dong Myung LeeJae Yoon OhDal Ho CheongSoon Bae Yang
    • Dong Myung LeeJae Yoon OhDal Ho CheongSoon Bae Yang
    • H02M114
    • H02M7/48H02M1/10H02M7/1626H02M2007/2195Y02B70/1408
    • Disclosed are a voltage compensating apparatus and method for a 3-phase inverter using four switches, to compensate for a severe distortion of a 3-phase application voltage due to a voltage ripple. The voltage compensating apparatus includes upper and lower DC link capacitors connected to each other in series and adapted to receive an input DC voltage, and to charge the DC voltage therein, a B4 inverter supplying a voltage to a 3-phase motor 1, using the four switches, when it receives the charged voltage from each of the DC link capacitors, a diodebridge receiving an AC voltage from an AC voltage source, rectifying the received AC voltage into a DC voltage, and applying the rectified DC voltage to the upper and lower DC link capacitors as the input DC voltage, and a triac coupled at an input terminal thereof to one line of the AC voltage source while being coupled at an output terminal thereof to a connection node between the upper and lower DC link capacitors, the triac serving to control whether or not the upper and lower DC link capacitors are to be charged with the DC voltage, respectively. In accordance with the present invention, the upper and lower DC link capacitors are charged through different paths, respectively. Accordingly, a control for DC link voltages is enabled to achieve a reduction in voltage ripple while minimizing a degradation in performance.
    • 公开了一种用于使用四个开关的三相逆变器的电压补偿装置和方法,以补偿由于电压纹波引起的三相施加电压的严重失真。 电压补偿装置包括串联连接并适于接收输入直流电压的上,下直流母线电容器,并向其中的直流电压充电,向三相电动机1提供电压的B4逆变器,使用 四个开关,当从每个直流链路电容器接收到充电电压时,二极管桥接器从交流电压源接收交流电压,将接收到的交流电压整流为直流电压,并将整流的直流电压施加到上部和下部 DC链路电容器作为输入DC电压,并且三端双向可控硅开关元件在其输入端耦合到AC电压源的一条线,同时在其输出端耦合到上部和下部DC链路电容器之间的连接节点,三端双向可控硅开关元件 以控制上下直流母线电容器是否分别用直流电压充电。 根据本发明,分别通过不同的路径对上下直流链路电容器进行充电。 因此,使DC链路电压的控制能够实现电压纹波的降低,同时最小化性能的降低。