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公开(公告)号：US20050007058A1
公开(公告)日：2005-01-13
申请号：US10885129
申请日：2004-07-07
CPC分类号： H02P27/026 , H02P6/28 , H02P27/04 , H02P27/08
摘要： The PWM frequency to be input to a current controller that generates voltage commands for a spindle motor inverter unit is switched between multiple levels according to a current feedback value to suppress heat generation in the spindle motor and drive unit.
摘要翻译： 输入到主电动机逆变器单元产生电压指令的电流控制器的PWM频率根据电流反馈值在多个电平之间切换，以抑制主轴电动机和驱动单元中的发热。
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公开(公告)号：US07446497B2
公开(公告)日：2008-11-04
申请号：US11609880
申请日：2006-12-12
IPC分类号： G05B11/18
CPC分类号： G05B19/19 , G05B2219/42104
摘要： A fixed-position stop control apparatus (10) includes: a move-instruction generating means (22) for generating a move instruction for each control cycle; a position loop control means (25) for position controlling a rotation shaft (61) for each control cycle according to the move instruction generated by the move-instruction generating means; and a speed loop control means (35) for speed controlling the rotation shaft according to one of a speed instruction generated by a higher level control apparatus (45) and a predetermined speed instruction, thereby switching the speed control of the rotation shaft by the speed loop control means to the position control of the rotation shaft by the position loop control means. In this fixed-position stop control apparatus, the move instruction generated by the move-instruction generating means has acceleration smaller than the acceleration corresponding to the acceleration and deceleration ability of the rotation shaft. With this arrangement, time required for the rotation shaft to stop at a fixed position can be decreased.
摘要翻译： 固定位置停止控制装置（10）包括：移动指令生成装置（22），用于生成每个控制周期的移动指令; 位置循环控制装置，用于根据由所述移动指令产生装置产生的移动指令对每个控制循环进行位置控制旋转轴; 以及用于根据由上位控制装置（45）产生的速度指令和预定速度指令之一速度控制旋转轴的速度环控制装置（35），从而将旋转轴的速度控制切换到速度 循环控制装置通过位置环控制装置转动到旋转轴的位置控制。 在该固定位置停止控制装置中，由移动指令发生装置产生的移动指令的加速度小于与旋转轴的加速和减速能力对应的加速度。 通过这种布置，可以减少旋转轴在固定位置停止所需的时间。
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83.发明申请Method for detecting angular difference and apparatus for controlling synchronous motor 审中-公开角度差检测方法及同步电机控制装置公开(公告)号：US20050156555A1
公开(公告)日：2005-07-21
申请号：US11034875
申请日：2005-01-14
摘要： Disclosed is a method for detecting an angular difference between a motor magnetic pole position and an encoder reference position in a permanent magnet synchronous motor equipped with an incremental encoder, wherein a DC current command for supplying a monotonically decreasing DC current is applied to the permanent magnet motor for DC excitation, and the angular difference is detected by detecting an amount of rotor movement due to the DC excitation by using the incremental encoder. By applying a DC excitation current command for supplying a monotonically decreasing DC current rather than supplying a DC current of constant magnitude as in the prior art, it becomes possible, without estimating the initial magnetic pole position, to shorten the time required for the motor rotor to stop, while preventing the phenomenon in which the rotor does not stop at the magnetic pole position but oscillates around that position.
摘要翻译： 公开了一种用于检测装备有增量式编码器的永磁同步电动机中的电动机磁极位置与编码器基准位置之间的角度差的方法，其中用于提供单调递减的DC电流的DC电流指令被施加到永磁体 用于DC励磁的电动机，并且通过使用增量编码器检测由于DC激励引起的转子运动量来检测角度差异。 通过施加用于提供单调递减的DC电流的DC励磁电流指令而不是像现有技术那样提供恒定幅度的DC电流，可以在不估计初始磁极位置的情况下缩短电动机转子所需的时间 停止，同时防止转子不停在磁极位置但在该位置周围振荡的现象。
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公开(公告)号：US06879130B2
公开(公告)日：2005-04-12
申请号：US10715857
申请日：2003-11-19
摘要： A controller for a vector control of an induction motor, which is capable of easily determining a rotor resistance for use in calculation of a slip frequency. A temperature sensor is provided for detecting a temperature of a stator. Information on relation between the rotor temperature and the rotor resistance predetermined based on measurement is stored in a table. In driving the induction motor, the rotor resistance for the stator temperature detected by the temperature sensor is read from the table. A torque command I2 is divided by a magnetic flux command Φ2 and the obtained quotient is multiplied by the read value of the rotor resistance to obtain the slip frequency ωs, so that the vector control is performed based on the obtained slip frequency ωs. The value of the rotor resistance is easily determined by simply referring the table without complicated calculation. Since the stored information on the rotor resistance are based on measured values, a more precise value of the slip frequency is obtained to realize a precise vector control of the induction motor.
摘要翻译： 用于感应电机的矢量控制的控制器，其能够容易地确定用于计算滑差频率的转子电阻。 设置有用于检测定子的温度的温度传感器。 关于转子温度与基于测量值预定的转子电阻之间的关系的信息存储在表中。 在驱动感应电动机时，从表中读取由温度传感器检测的定子温度的转子电阻。 将转矩指令I2除以磁通指令Phi2，将所得到的乘数乘以转子电阻的读取值，得到转差频率ω，从而基于得到的转差频率ωo进行矢量控制。 通过简单地参考该表而不需要复杂的计算，可容易地确定转子电阻的值。 由于存储的关于转子电阻的信息基于测量值，所以获得更精确的转差频率值以实现感应电动机的精确矢量控制。
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85.发明授权公开(公告)号：US09048733B2
公开(公告)日：2015-06-02
申请号：US13595042
申请日：2012-08-27
申请人： Yasusuke Iwashita , Hajime Ogawa
发明人： Yasusuke Iwashita , Hajime Ogawa
IPC分类号： H02P6/14 , H02M1/32 , H02P3/22 , H02M5/458 , H02P1/00 , H02P3/18 , H02P27/04 , B60W10/08 , B60W20/00 , B60L11/14 , G01R1/20 , H02P5/74 , H02P21/00 , H02M7/797 , H02M1/00
摘要： A motor driving device includes a converter that converts an input alternating current into a direct current, an inverter that inverts the direct current output by the converter into an alternating current for driving a motor, a voltage detecting unit that detects a voltage on a direct current output side of the converter, and a numerical control unit that causes the inverter to output a reactive current to increase electric power consumed in the motor, when the voltage detected by the voltage detecting unit exceeds a predetermined threshold.
摘要翻译： 电动机驱动装置包括将输入交流电转换为直流电的转换器，将由转换器输出的直流电转换成用于驱动电动机的交流电的逆变器，检测直流电压的电压检测单元 输出侧，以及数值控制单元，当由电压检测单元检测到的电压超过预定阈值时，使得逆变器输出无功电流以增加电动机中消耗的电力。
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公开(公告)号：US08901866B2
公开(公告)日：2014-12-02
申请号：US13471542
申请日：2012-05-15
申请人： Koujirou Sakai , Yasusuke Iwashita
发明人： Koujirou Sakai , Yasusuke Iwashita
摘要： A motor drive apparatus includes an AC/DC converter which converts AC power supplied from a power supply to DC power, a DC/AC converter which converts DC power to AC power and vice versa, a DC link unit which connects the DC side of the AC/DC converter to the DC side of the DC/AC converter and delivers the DC power from one to the other and vice versa, an energy storage unit which includes at least one capacitor storage unit and at least one flywheel storage unit each of which is connected to the DC link unit and stores or supplies the DC power, and an energy control unit which performs control so that the energy storage unit stores or supplies the DC power.
摘要翻译： 一种电动机驱动装置，具备将从电源供给的交流电力转换成直流电的交流/直流转换器，将直流电变换成交流电的直流/交流变换器，反之亦然;直流侧连接单元， AC / DC转换器连接到DC / AC转换器的DC侧，并将DC电力从一个传送到另一个，反之亦然;一个能量存储单元，其包括至少一个电容器存储单元和至少一个飞轮存储单元， 连接到DC链路单元并存储或提供DC电力;以及能量控制单元，其执行控制，使得能量存储单元存储或提供DC电力。
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公开(公告)号：US08649130B2
公开(公告)日：2014-02-11
申请号：US13025210
申请日：2011-02-11
CPC分类号： H02H7/0838 , G01R19/10 , H02H1/0038 , H02H3/105 , H02P29/0241 , H02P29/027
摘要： A motor driving apparatus capable of detecting during operation a ground fault and a phase-to-phase short circuit by distinguishing one from the other is provided while minimizing an increase in cost. The sum of three-phase AC currents supplied from a three-phase AC power supply to an AC/DC converter is detected by a current sensor. When overcurrent is detected by an overcurrent detector, if the sum of the currents detected by the current sensor is zero, it is determined that the fault is a phase-to-phase short circuit, but if the sum is not zero, it is determined that the fault is a ground fault.
摘要翻译： 提供一种电动机驱动装置，其能够在操作期间通过将接地故障和相间短路彼此区分来检测，同时最小化成本增加。 通过电流传感器检测从三相AC电源向AC / DC转换器提供的三相AC电流的总和。 当由过电流检测器检测到过电流时，如果由电流传感器检测到的电流之和为零，则确定故障是相间短路，但是如果并非零，则确定 故障是接地故障。
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公开(公告)号：US20120068637A1
公开(公告)日：2012-03-22
申请号：US13215563
申请日：2011-08-23
IPC分类号： H02P3/14
摘要： During motor acceleration control period that starts at time T1, if power supply output or supply current exceeds a predetermined level at time T2, PWM control in a PWM converter is turned off until a deceleration control period of T3 to T4 ends. As a result, DC link voltage (voltage of a power storage device) at the start of the deceleration control at time T3 drops to provide space for storing regenerative power; since the PWM control in the PWM converter is off during the deceleration control period, the regenerative power can be stored into the power storage device and reused in the next control cycle.
摘要翻译： 在时刻T1开始的电动机加速控制期间，如果电力供应输出或电源电流在时间T2超过预定电平，则PWM转换器中的PWM控制被截止，直到T3至T4的减速控制周期结束。 结果，在时刻T3的减速控制开始时的直流链路电压（蓄电装置的电压）下降，提供存储再生电力的空间; 由于PWM转换器中的PWM控制在减速控制期间关闭，所以再生功率可以存储到蓄电装置中并在下一个控制周期中重新使用。
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公开(公告)号：US07656106B2
公开(公告)日：2010-02-02
申请号：US11482011
申请日：2006-07-07
申请人： Yasusuke Iwashita , Yukio Toyozawa , Kazuomi Maeda
发明人： Yasusuke Iwashita , Yukio Toyozawa , Kazuomi Maeda
CPC分类号： G05B19/195 , G05B19/4141
摘要： There is provided a servo controller for synchronously controlling a master side drive source to drive one drive axis and a slave side drive source to drive the other drive axis. The servo controller includes a correction data calculation means for calculating correction data to correct a positional deviation of a slave side drive source according to a synchronization error which is a difference between a positional deviation of a master side drive source and a positional deviation of the slave side drive source, in which the correction data is added to the positional deviation of the slave side drive source.
摘要翻译： 提供了一个伺服控制器，用于同步控制主侧驱动源以驱动一个驱动轴和从侧驱动源来驱动另一个驱动轴。 伺服控制器包括校正数据计算装置，用于根据同步误差计算校正数据以校正从动侧驱动源的位置偏差，所述同步误差是主侧驱动源的位置偏差与从动件的位置偏差之间的差 侧校正数据被添加到从动侧驱动源的位置偏差。
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公开(公告)号：US20070205738A1
公开(公告)日：2007-09-06
申请号：US11699582
申请日：2007-01-30
申请人： Yasusuke Iwashita , Kazuomi Maeda , Yukio Toyozawa
发明人： Yasusuke Iwashita , Kazuomi Maeda , Yukio Toyozawa
IPC分类号： B25J9/16
CPC分类号： G05B19/404 , G05B2219/41036 , G05B2219/41059 , G05B2219/41077
摘要： A controller including a learning control unit for determining learning data based on a positional deviation between a target-position command commanding superimposed-type motion including repetitive motion and a positional fed-back variable obtained from an output portion of an electric motor; and an operation control section for controlling the electric motor based on a corrected positional deviation. The learning control unit includes a first learning section for periodically determining, based on the positional deviation, and storing, first learning data according to a first learning period; a learning-data correcting section for correcting the first learning data to eliminate an influence of a local change included in the target-position command or the positional fed-back variable and periodically arising according to a period different from the first learning period; and a positional-deviation correcting section for correcting the positional deviation by using corrected learning data.
摘要翻译： 一种控制器，包括：学习控制单元，用于基于指示重复运动的重叠型运动的目标位置命令与从电动机的输出部获得的位置反馈变量之间的位置偏差确定学习数据; 以及操作控制部分，用于基于校正的位置偏差来控制电动机。 学习控制单元包括：第一学习部分，用于基于位置偏差周期性地确定并存储根据第一学习周期的第一学习数据; 学习数据校正部分，用于校正第一学习数据以消除包括在目标位置命令或位置反馈变量中的局部变化的影响，并且周期性地根据与第一学习周期不同的周期出现; 以及位置偏差校正部分，用于通过使用校正的学习数据来校正位置偏差。
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