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公开(公告)号：US5877603A
公开(公告)日：1999-03-02
申请号：US836712
申请日：1997-05-13
摘要： An electric current control method for a servomotor in which a reactive current is lowered in a region where a voltage saturation does not occur, to suppress generation of heat caused by the reactive current and achieve a stable rotation up to a high-speed region. In the current control of the servomotor using a DQ conversion, an electric current is not supplied to d-phase and supplied only to q-phase when a rotational speed of the servomotor is not high, and the reactive current is supplied to the d-phase only when the rotational speed of the servomotor is high, to thereby lower the terminal voltage of the servomotor by the reactive current. Thus, the reactive current is reduced in the region where the voltage saturation does not occur, to thereby suppress the generation of heat due to the reactive current, and also achieve the stable rotation even in the high-speed region.
摘要翻译： PCT No.PCT / JP96 / 02661 Sec。 371日期1997年5月13日 102（e）日期1997年5月13日PCT提交1996年9月17日PCT公布。 公开号WO97 / 10643 日本公开1997年3月20日在不发生电压饱和的区域中无功电流降低的伺服电动机的电流控制方法中，为了抑制由无功电流引起的热量的产生并达到稳定的高达高达 速度区域。 在使用DQ转换的伺服电动机的电流控制中，当伺服电动机的转速不高时，不向d相供给电流，仅供给q相，并且将无功电流供给到d相， 只有当伺服电动机的转速高时，才能通过无功电流来降低伺服电动机的端电压。 因此，在没有发生电压饱和的区域中，无功电流减小，从而抑制由无功电流引起的热量的产生，并且即使在高速区域也能实现稳定的旋转。
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公开(公告)号：US20070282557A1
公开(公告)日：2007-12-06
申请号：US11806920
申请日：2007-06-05
CPC分类号： G05B19/406
摘要： A data observation device for observing internal data of a control device for controlling a machine tool, an industrial machine, an industrial robot, or the like which has at least one drive shaft driven by one selected from a servo motor, a spindle motor. The device includes: means which specifies observational data targeted for observation; means which specifies trigger data used to determine a timing of a trigger for starting and/or terminating acquisition of the observational data; means which sets a trigger condition for applying the trigger based on a value of the trigger data; and means which judges whether or not the trigger condition is satisfied in the control device, selectively starts and terminates acquisition of a value of the observational data, and displays the acquired observational data.
摘要翻译： 一种用于观察用于控制机床，工业机器，工业机器人等的控制装置的内部数据的数据观察装置，其具有由伺服电动机，主轴电动机中选择的一个驱动的至少一个驱动轴。 该装置包括：指定用于观察的观察数据的手段; 指定用于确定用于启动和/或终止观测数据采集的触发的定时的触发数据的装置; 基于触发数据的值设置用于应用触发的触发条件的装置; 以及判断在控制装置中是否满足触发条件的装置，选择性地开始并终止获取观测数据的值，并显示所获取的观测数据。
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3.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：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。
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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：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。
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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。
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公开(公告)号：US20110202167A1
公开(公告)日：2011-08-18
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： G05B19/19
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。
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