-
1.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。
-
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。
-
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。
-
公开(公告)号：US08483865B2
公开(公告)日：2013-07-09
申请号：US13020165
申请日：2011-02-03
申请人： Yasusuke Iwashita , Tadashi Okita , Junichi Tezuka
发明人： Yasusuke Iwashita , Tadashi Okita , Junichi Tezuka
IPC分类号： G06F19/00
CPC分类号： G05B19/404 , G05B2219/49203
摘要： Coordinate values of a tool center point is calculated by obtaining coordinate values at each time of respective drive axes driven by a numerical controller. A tool radius compensation vector connecting the calculated tool center point at each time and an actual machining point is obtained. Then, coordinate values of the actual machining point are calculated based on the calculated coordinate values of the tool center point and the obtained tool radius compensation vector, and the trajectory of the actual machining point is displayed on a display.
摘要翻译： 通过在数值控制器驱动的各个驱动轴的每次获得坐标值来计算刀具中心点的坐标值。 获得每次将计算出的刀具中心点与实际加工点连接的刀具半径补偿矢量。 然后，基于计算出的刀具中心点的坐标值和获得的刀具半径补偿矢量来计算实际加工点的坐标值，并且将实际加工点的轨迹显示在显示器上。
-
公开(公告)号：US20130026964A1
公开(公告)日：2013-01-31
申请号：US13495181
申请日：2012-06-13
申请人： Naoto SONODA , Yasusuke IWASHITA
发明人： Naoto SONODA , Yasusuke IWASHITA
IPC分类号： G05B11/32
CPC分类号： G05B19/416 , G05B2219/34027 , G05B2219/41034 , G05B2219/41264 , H02P5/50 , H02P5/74
摘要： A control device that drives one driven object by a first motor and a second motor. A first processor has a first correction amount calculation unit configured to calculate an amount of correction for a torque command to the first motor based on a speed value difference between a speed value of the first motor and a speed value of the second motor in order to suppress vibrations. A second processor has a second correction amount calculation unit configured to calculate an amount of correction for a torque command to the second motor based on a speed value difference between a speed value of the first motor and a speed value of the second motor in order to suppress vibrations.
摘要翻译： 一种由第一电动机和第二电动机驱动一个被驱动物体的控制装置。 第一处理器具有第一校正量计算单元，其被配置为基于第一电动机的速度值和第二电动机的速度值之间的速度值差来计算针对第一电动机的转矩指令的校正量，以便 抑制振动。 第二处理器具有第二校正量计算单元，其被配置为基于第一电动机的速度值和第二电动机的速度值之间的速度值差来计算针对第二电动机的转矩指令的校正量，以便 抑制振动。
-
6.发明申请公开(公告)号：US20130026959A1
公开(公告)日：2013-01-31
申请号：US13494087
申请日：2012-06-12
申请人： Naoto SONODA , Yasusuke IWASHITA
发明人： Naoto SONODA , Yasusuke IWASHITA
IPC分类号： H02P6/08
CPC分类号： H02P29/02 , H02P29/032
摘要： An estimated torque constant calculation unit calculates an estimated torque constant relating to the permanent magnet synchronous motor from a current representative value and an acceleration representative value acquired from a plurality of current values and a plurality of acceleration values in the same operation state over a plurality of periods of a sinusoidal command signal and a predetermined inertia relating to the permanent magnet synchronous motor. A demagnetization detection unit detects whether or not irreversible demagnetization has occurred in the permanent magnet of the permanent magnet synchronous motor based on a difference between the estimated torque constant and a predetermined torque constant relating to the permanent magnet synchronous motor.
摘要翻译： 估计转矩常数计算单元从多个电流值和相同运行状态下的多个加速度值中获取的当前代表值和从多个加速度值获得的加速度代表值，计算与永磁同步电动机有关的估计转矩常数 与永磁同步电动机相关的正弦指令信号和预定惯量的周期。 退磁检测单元基于估计转矩常数和与永磁同步电动机相关的预定转矩常数之间的差来检测永磁同步电动机的永久磁铁中是否发生不可逆退磁。
-
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。
-
公开(公告)号：US20110238338A1
公开(公告)日：2011-09-29
申请号：US13029496
申请日：2011-02-17
CPC分类号： H02P29/025 , G01R31/42 , H02M1/32 , H02M7/53875
摘要： Disclosed is a motor driving apparatus in which provisions are made so as to easily isolate the cause of a fault in the event of the occurrence thereof. The voltage and current in each phase of the AC power being supplied to a converter are detected, and the most recently detected data are stored in a power supply monitoring unit for a predetermined period of time. If an alarm occurs in the converter, inverter, or controller, the data currently held in the power supply monitoring unit are recorded in a recording unit. By displaying the thus recorded data, one can easily identify whether the cause of the alarm is due to the power supply or the motor driving apparatus itself.
摘要翻译： 公开了一种电动机驱动装置，其中进行了设置，以便在发生故障的情况下容易地隔离故障原因。 检测提供给转换器的交流电力的每相中的电压和电流，并且将最近检测到的数据存储在电源监视单元中预定的时间段。 如果转换器，变频器或控制器发生报警，则电源监控单元中当前保存的数据将记录在记录单元中。 通过显示如此记录的数据，可以容易地识别报警的原因是由于电源还是由于电机驱动装置本身。
-
公开(公告)号：US20110234146A1
公开(公告)日：2011-09-29
申请号：US13030252
申请日：2011-02-18
申请人： Yasusuke Iwashita , Tadashi Okita , Takahiro Akiyama , Geng Li
发明人： Yasusuke Iwashita , Tadashi Okita , Takahiro Akiyama , Geng Li
IPC分类号： H02P23/00
CPC分类号： G05D13/64 , B23Q17/10 , G05B19/404 , G05B2219/41136 , G05B2219/41319 , G05B2219/49254
摘要： The controller controls a spindle connected to an induction motor via a belt by controlling the rotational velocity of the induction motor. The spindle has an encoder attached thereto for detecting the position of the spindle, but the induction motor does not have a velocity detector attached thereto. The velocity of the induction motor is estimated from the spindle velocity obtained from output of the encoder, and slip of the belt is detected based on the estimated velocity of the induction motor. When occurrence of slip of the belt is detected, the estimated velocity of the induction motor will not be used for the control of the induction motor.
摘要翻译： 控制器通过控制感应电机的旋转速度通过皮带控制连接到感应电机的主轴。 主轴具有附接到其上的编码器，用于检测主轴的位置，但是感应电动机没有连接有速度检测器。 感应电动机的速度是根据从编码器的输出获得的主轴速度来估计的，并且基于感应电动机的估计速度来检测皮带的滑移。 当检测到皮带的滑动发生时，感应电动机的估计速度将不被用于感应电动机的控制。
-
公开(公告)号：US08026689B2
公开(公告)日：2011-09-27
申请号：US12761191
申请日：2010-04-15
申请人： Yasusuke Iwashita , Tadashi Okita , Junichi Tezuka
发明人： Yasusuke Iwashita , Tadashi Okita , Junichi Tezuka
IPC分类号： G05B11/01
CPC分类号： G05B19/416 , G05B2219/34314
摘要： A control device for a machine tool including a feed axis driving motor; a first power consumption calculating portion calculating power consumption of the feed axis driving motor; a second power consumption calculating portion calculating power consumption of equipment adapted to be operated by constant power; and a motor control portion determining a target time constant correlated with at least one of acceleration time and deceleration time of the feed axis driving motor, based on a summation of the power consumption calculated by the first power consumption calculating portion and the power consumption calculated by the second power consumption calculating portion, and controlling the feed axis driving motor based on the target time constant.
摘要翻译： 一种用于机床的控制装置，包括进给轴驱动电机; 计算进给轴驱动电机的功耗的第一功耗计算部; 第二功率消耗计算部分，用于计算适于由恒定功率运行的设备的功耗; 以及电动机控制部，其基于由所述第一功耗计算部计算出的功率消耗和由所述第一功耗计算部计算出的功率消耗的总和与由所述第一功耗计算部计算出的功耗的乘积和由 第二功率消耗计算部分，并且基于目标时间常数来控制进给轴驱动电动机。
-
-
-
-
-
-
-
-
-
搜索结果
200 条记录 (耗时 0.022 秒)
