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1. 发明授权

US06388903B2 Voltage compensating apparatus and method for 3-phase inverter employing four switches 失效
标题翻译：采用四个开关的三相逆变器的电压补偿装置和方法
公开(公告)号：US06388903B2
公开(公告)日：2002-05-14
申请号：US09852036
申请日：2001-05-10
申请人： Dong Myung Lee , Jae Yoon Oh , Dal Ho Cheong , Soon Bae Yang
发明人： Dong Myung Lee , Jae Yoon Oh , Dal Ho Cheong , Soon Bae Yang
IPC分类号： H02M114
CPC分类号： H02M7/48 , H02M1/10 , H02M7/1626 , H02M2007/2195 , Y02B70/1408
摘要： 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.
摘要翻译：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。

2. 发明授权

US06525497B2 Phase distortion compensating apparatus and method for reducing torque ripple in 3-phase motor 失效
公开(公告)号：US06525497B2
公开(公告)日：2003-02-25
申请号：US09813149
申请日：2001-03-21
申请人： Dong Myung Lee , Jae Yoon Oh , Dal Ho Cheong
发明人： Dong Myung Lee , Jae Yoon Oh , Dal Ho Cheong
IPC分类号： H02P700
CPC分类号： H02P27/08
摘要： Disclosed are a phase distortion compensating apparatus and method for reducing a torque ripple in a 3-phase motor using four switching elements, which are capable of adjusting respective switching times of phase voltages, to be supplied to the 3-phase motor by an inverter including the switching elements, based on a voltage difference between upper and lower DC link capacitors respectively adapted to supply voltages to the inverter, thereby reducing a torque ripple generated in the motor. The apparatus includes a rectifier unit, upper and lower DC link capacitors connected in parallel to the rectifier unit, each of the capacitors serving to conduct charge and discharge operations for a DC voltage outputted from the rectifier unit, an inverter connected in parallel to the capacitors and adapted to generate a 3-phase voltage adapted to rotate the motor, based on voltages respectively discharged from the capacitors along with a switching signal, and a voltage command generator for calculating compensation components for respective switching operations of switching elements of A and B phases included in the inverter, based on a voltage difference between the capacitors, a difference between an actual motor speed and a command speed, and a rotor position, and providing respective switching times including the calculated compensation components, thereby controlling a rotating speed of the motor.

3. 发明授权

US06646409B2 Apparatus for controlling rotation speed of motor 失效
标题翻译：用于控制电机转速的装置
公开(公告)号：US06646409B2
公开(公告)日：2003-11-11
申请号：US10038659
申请日：2002-01-08
申请人： June Hee Won , Dal Ho Cheong , Jae Yoon Oh , Kyung Hoon Lee
发明人： June Hee Won , Dal Ho Cheong , Jae Yoon Oh , Kyung Hoon Lee
IPC分类号： H02P540
CPC分类号： H02P25/089
摘要： 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.
摘要翻译：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。

4. 发明授权

US06831439B2 Apparatus for measuring magnetic flux of synchronous reluctance motor and sensorless control system for the same motor 失效
公开(公告)号：US06831439B2
公开(公告)日：2004-12-14
申请号：US10614813
申请日：2003-07-09
申请人： June Hee Won , Jae Yoon Oh , Kyung Hoon Lee , Dal Ho Cheong
发明人： June Hee Won , Jae Yoon Oh , Kyung Hoon Lee , Dal Ho Cheong
IPC分类号： H02P146
CPC分类号： H02P21/141 , H02P21/00 , H02P25/089 , H02P2203/05
摘要： Disclosed are a flux observer and a sensorless control system of a synchronous reluctance motor. The flux observer includes an estimated flux output unit, a measured flux output unit, and a fixed/rotational coordinate converter. The flux observer estimates a flux of a synchronous reluctance motor by removing higher harmonic components of a current in a rotational coordinate system which flows into the motor. The measured flux output unit measures a flux in a fixed coordinate system by combining a voltage in the fixed coordinate system, which is applied to the motor, and a current in the fixed coordinate system, from which higher harmonic components are removed, with the estimated flux outputted from the estimated flux output unit. The fixed/rotational coordinate converter converts the measured flux outputted from the measured flux output unit to a measured flux in the rotational coordinate system.

5. 发明授权

US06769167B2 Method of manufacturing a rotor for a synchronous reluctance motor 有权
标题翻译：制造用于同步磁阻电机的转子的方法
公开(公告)号：US06769167B2
公开(公告)日：2004-08-03
申请号：US10045147
申请日：2002-01-15
申请人： Kyung Hun Lee , Jae Yoon Oh , Dal Ho Cheong
发明人： Kyung Hun Lee , Jae Yoon Oh , Dal Ho Cheong
IPC分类号： H02K1500
CPC分类号： H02K1/246 , H02K15/022 , H02K19/103 , Y10T29/49009 , Y10T29/49012 , Y10T29/49078 , Y10T29/49943 , Y10T29/49956 , Y10T29/53161
摘要： 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.
摘要翻译：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

US06735284B2 System for controlling motor and method for the same 失效
标题翻译：电机控制系统及方法
公开(公告)号：US06735284B2
公开(公告)日：2004-05-11
申请号：US10412249
申请日：2003-04-14
申请人： Dal Ho Cheong , June Hee Won , Jae Yoon Oh , Kyung Hoon Lee
发明人： Dal Ho Cheong , June Hee Won , Jae Yoon Oh , Kyung Hoon Lee
IPC分类号： H02P534
CPC分类号： H02P25/08 , H02P21/05 , H02P21/18 , H02P21/26
摘要： 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.
摘要翻译：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。

7. 发明授权

US07138777B2 Sensorless motor drive apparatus and method for protecting and controlling the same 有权
标题翻译：无传感器电机驱动装置及其保护和控制方法
公开(公告)号：US07138777B2
公开(公告)日：2006-11-21
申请号：US11037015
申请日：2005-01-19
申请人： June Hee Won , Jae Yoon Oh , Gil Su Lee , Dal Ho Cheong , Kyung Hoon Lee
发明人： June Hee Won , Jae Yoon Oh , Gil Su Lee , Dal Ho Cheong , Kyung Hoon Lee
IPC分类号： H02P7/06
CPC分类号： H02P29/032 , H02P6/34 , H02P21/18
摘要： A sensorless motor drive apparatus and a method for protecting and controlling the same. The sensorless motor drive apparatus includes a unit for determining the presence or absence of a position estimation error of a rotor contained in a motor using a current value applied to the motor and a position estimation angle of the rotor. Therefore, the sensorless motor drive apparatus determines the presence or absence of the position estimation error of the rotor without using a sensor, so that it reduces production costs, prevents the motor from generating a faulty operation, and prevents a compressor including the motor from being damaged.
摘要翻译：一种无传感器电机驱动装置及其保护和控制方法。无传感器电动机驱动装置包括用于使用施加到电动机的电流值和转子的位置估计角度来确定包含在电动机中的转子的位置估计误差的存在或不存在的单元。因此，无传感器电动机驱动装置不使用传感器来确定转子的位置估计误差的有无，从而降低生产成本，防止电动机产生故障运转，并且防止包括电动机的压缩机破损。

8. 发明授权

US07459821B2 Permanent magnet assisted synRM and method for imposing magnetic force thereon 有权
标题翻译：永磁辅助synRM及其上施加磁力的方法
公开(公告)号：US07459821B2
公开(公告)日：2008-12-02
申请号：US11028314
申请日：2005-01-04
申请人： Dal Ho Cheong , Kyung Hoon Lee , Hyun Hun Shin , June Hee Won , Jae Yoon Oh , Gil Su Lee
发明人： Dal Ho Cheong , Kyung Hoon Lee , Hyun Hun Shin , June Hee Won , Jae Yoon Oh , Gil Su Lee
IPC分类号： H02K1/27 , H02K21/14
CPC分类号： H01F13/003 , H02K1/246 , H02K1/2766 , H02K15/03
摘要： A PMA (Permanent Magnet Assisted) synRM and a method for imposing a magnetic force thereon. Magnets are inserted into outer flux barriers of a plurality of flux barriers formed along the radius of a rotor, and bridges or slim portions are formed on inner flux barriers at positions corresponding to the positions of the magnets so that the magnetic force is imposed on the magnets through coils. Since the number of the flux barriers is sufficiently increased while the amount of the magnets consumed is decreased, the PMA synRM has increased efficiency and reduced production costs.
摘要翻译：一种PMA（永磁辅助）synRM及其上施加磁力的方法。将磁铁插入沿着转子半径形成的多个通量屏障的外部通量屏障中，并且在对应于磁体位置的位置处，在内部磁通屏障上形成桥梁或细长部分，使得磁力施加在磁铁通过线圈。由于磁通屏障的数量充分增加，而消耗的磁体的量减少，因此PMA synRM提高了效率并降低了生产成本。

9. 发明授权

US07358694B2 Apparatus and method for determining normal start up of sensorless motor 有权
标题翻译：无传感器电机正常启动的装置和方法
公开(公告)号：US07358694B2
公开(公告)日：2008-04-15
申请号：US11368665
申请日：2006-03-07
申请人： June Hee Won , Dal Ho Cheong , Jae Yoon Oh
发明人： June Hee Won , Dal Ho Cheong , Jae Yoon Oh
IPC分类号： H02P1/04
CPC分类号： H02P6/20
摘要： An apparatus and method determine a start-up of a sensorless motor. The apparatus includes an elapsed time determination unit, a motor velocity determination unit and an abnormal start-up determination unit. The elapsed time determination unit determines whether a predetermined time has elapsed after a start-up of the motor is initiated. The motor velocity determination unit determines whether a velocity of the motor exceeds a predetermined velocity value when the predetermined time has elapsed. The abnormal start-up determination unit determines that the motor was abnormally started up when the velocity of the motor does not exceed the predetermined value, and an amount of current flowing in the motor does not exceed a predetermined current value.
摘要翻译：一种装置和方法确定无传感器电动机的起动。该装置包括经过时间确定单元，马达速度确定单元和异常启动确定单元。经过时间确定单元确定在启动电动机起动之后是否经过了预定时间。当经过预定时间时，马达速度确定单元确定马达的速度是否超过预定速度值。当电动机的速度不超过预定值，并且在电动机中流动的电流量不超过预定电流值时，异常启动确定单元确定电动机异常启动。

10. 发明授权

US07791298B2 Motor driver system and method for protecting motor driver 有权
标题翻译：电动机驱动系统及其保护方法
公开(公告)号：US07791298B2
公开(公告)日：2010-09-07
申请号：US11945890
申请日：2007-11-27
申请人： Kyung Hoon Lee , June Hee Won , Gil Su Lee , Jun Ho Ahn , Jae Yoon Oh
发明人： Kyung Hoon Lee , June Hee Won , Gil Su Lee , Jun Ho Ahn , Jae Yoon Oh
IPC分类号： H02K17/32 , H02K23/68 , H02K27/30
CPC分类号： H02P21/0085 , H02P21/0089 , H02P21/06 , H02P23/0004 , H02P29/032
摘要： A motor driver system includes an inverter configured to apply a three-phase voltage to a motor; an inverter driver configured to generate a reference voltage to the inverter to control a motor speed to follow a reference speed; and a motor protector configured to control the inverter driver so that a value of the reference voltage is equal to or lower than a predetermined voltage value.
摘要翻译：电动机驱动器系统包括被配置为向电动机施加三相电压的逆变器; 逆变器驱动器，其被配置为向所述逆变器产生参考电压，以控制电动机速度跟随参考速度; 以及电动机保护器，被配置为控制所述逆变器驱动器，使得所述参考电压的值等于或低于预定电压值。

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