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81. 发明授权

US08901866B2 Motor drive apparatus equipped with energy storage unit 有权
标题翻译：电机驱动装置装有储能装置
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
IPC分类号： H02P27/00 , H02J3/32 , H02J1/16 , H02P3/18 , H02J3/30
CPC分类号： H02J3/30 , H02J1/16 , H02J3/32 , H02P3/18 , Y02E60/16 , Y10T307/625
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。

82. 发明授权

US08649130B2 Motor driving apparatus having fault diagnostic function 有权
标题翻译：具有故障诊断功能的电机驱动装置
公开(公告)号：US08649130B2
公开(公告)日：2014-02-11
申请号：US13025210
申请日：2011-02-11
申请人： Shinichi Horikoshi , Takashi Harada , Masatomo Shirouzu , Yasusuke Iwashita
发明人： Shinichi Horikoshi , Takashi Harada , Masatomo Shirouzu , Yasusuke Iwashita
IPC分类号： H02H3/00 , H02H7/08 , G01R31/02 , G01R31/34
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。

83. 发明申请

US20120068637A1 MOTOR DRIVING APPARATUS 有权
标题翻译：电机驱动装置
公开(公告)号：US20120068637A1
公开(公告)日：2012-03-22
申请号：US13215563
申请日：2011-08-23
申请人： Yasusuke Iwashita , Shinichi Horikoshi , Takashi Harada , Masakazu Niwa , Koujirou Sakai
发明人： Yasusuke Iwashita , Shinichi Horikoshi , Takashi Harada , Masakazu Niwa , Koujirou Sakai
IPC分类号： H02P3/14
CPC分类号： H02P3/18 , H02P3/14 , H02P23/20
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。

84. 发明授权

US07863853B2 Electric motor control device 有权
标题翻译：电动机控制装置
公开(公告)号：US07863853B2
公开(公告)日：2011-01-04
申请号：US12132103
申请日：2008-06-03
申请人： Yasusuke Iwashita , Takahiro Akiyama , Masakazu Niwa , Tomohisa Tsutsumi
发明人： Yasusuke Iwashita , Takahiro Akiyama , Masakazu Niwa , Tomohisa Tsutsumi
IPC分类号： H02P1/26
CPC分类号： H02P21/0003 , H02P21/08 , H02P21/22
摘要： An excitation current processor of a current controller processes the excitation current corresponding to the magnetic flux instruction from the magnetic flux instruction processor. It multiplies this excitation current with a boost coefficient to obtain an excitation current instruction. Here, the boost coefficient is determined based on the difference obtained by subtracting the magnetic flux estimation value processed by the magnetic flux processor based on the excitation current feedback from the voltage conversion device from the magnetic flux instruction input from the magnetic flux instruction processor. Further, the boost coefficient can be found from the function of time from the start of the rise of the magnetic flux.
摘要翻译：电流控制器的励磁电流处理器处理与来自磁通指令处理器的磁通指令对应的励磁电流。它将该励磁电流与升压系数相乘以获得励磁电流指令。这里，根据从磁通指令处理器输入的磁通指令，基于从电压变换装置的励磁电流反馈减去由磁通量处理器处理的磁通量估计值而得到的差值来确定升压系数。此外，可以从磁通量的上升开始的时间的函数中求出升压系数。

85. 发明授权

US07656106B2 Servo controller 有权
标题翻译：伺服控制器
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
IPC分类号： H02P5/46 , B23Q15/00
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。

86. 发明授权

US07368887B2 Servo control device and method of adjusting servo system 有权
标题翻译：伺服控制装置及伺服系统调整方法
公开(公告)号：US07368887B2
公开(公告)日：2008-05-06
申请号：US11356291
申请日：2006-02-17
申请人： Yasusuke Iwashita , Takahiro Akiyama , Masakazu Niwa
发明人： Yasusuke Iwashita , Takahiro Akiyama , Masakazu Niwa
IPC分类号： G05B11/32
CPC分类号： G05B19/406 , G05B2219/35292 , G05B2219/35338 , G05B2219/37078 , G05B2219/37619
摘要： A servo control device that displays, by a two-dimensional image, evaluation of control precision of a servo system, includes: an instruction unit that instructs a position instruction having periodicity; a unit that records a track of position data based on a position feedback of a servo system according to the position instruction; and a first drawing unit that draws position data based on the position feedback, data before a quarter cycle or after a quarter cycle of the position data or position data based on the position instruction before a quarter cycle or after a quarter cycle, on a two-dimensional plane including orthogonal two axes, as the axis data of the orthogonal two axes respectively.
摘要翻译：一种通过二维图像显示伺服系统的控制精度的评估的伺服控制装置包括：指示具有周期性的位置指令的指令单元; 根据位置指令，基于伺服系统的位置反馈来记录位置数据的轨迹的单元; 以及第一绘图单元，其基于位置反馈，在四分之一周期之前的数据或基于在四分之一周期之前或四分之一周期之后的位置指令的位置数据或位置数据的四分之一周期之后的位置数据包括正交两轴的三维平面分别作为正交两轴的轴数据。

87. 发明申请

US20070205738A1 Controller for electric motor 有权
标题翻译：电动机控制器
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。

88. 发明授权

US5157597A Method of detecting oscillation of a servo system and automatically adjusting speed loop gain thereof 失效
标题翻译：检测伺服系统振荡的方法和自动调节速度环路的增益
公开(公告)号：US5157597A
公开(公告)日：1992-10-20
申请号：US571581
申请日：1990-08-14
申请人： Yasusuke Iwashita
发明人： Yasusuke Iwashita
IPC分类号： C07C275/26 , G05B5/01 , G05B13/02
CPC分类号： C07C275/26 , G05B13/024 , G05B5/01
摘要： Method for automatically detecting oscillation of a servo system, and for rapidly, correctly and automatically adjusting a speed loop gain thereof.The servo system is operated with the position loop gain set to a large value, to rotate a motor in forward and reverse directions in an oscillating fashion. In an oscillation detection process, various frequency components of a speed signal (Vt) are repeatedly derived by Fourier transformation while the speed loop gains (k1, k2) are increased, and a main oscillation component (fmax) having a maximum amplitude among the frequency components is repeatedly determined (201, 202), and when the main oscillation component has rapidly increased (204, 209), it is determined that an oscillation of the servo system attributable to the resonance of a mechanical system has occurred and a warning is displayed. In a gain adjustment process, if the main oscillation component assumes a value close to a reference frequency (fa) during the motor oscillation in an integral-plus-proportional control or proportional-plus-integral control mode while the speed loop gain is changed, the loop gain and control mode (P) at that time are fixedly set (303), and if the main oscillation component does not fall in the vicinity of the reference frequency in the proportional-plus-integral control, a loop gain derived based on the upper limit cut-off frequency (f.sub.lim) is settled (311).

89. 发明授权

US08633663B2 Control device that detects whether or not irreversible demagnetization has occurred in permanent magnet of permanent magnet synchronous motor 有权
标题翻译：用于检测永磁同步电动机永磁体是否发生不可逆退磁的控制装置
公开(公告)号：US08633663B2
公开(公告)日：2014-01-21
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： H02P6/12
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。

90. 发明授权

US08415906B2 Motor driving apparatus 有权
标题翻译：电机驱动装置
公开(公告)号：US08415906B2
公开(公告)日：2013-04-09
申请号：US13215499
申请日：2011-08-23
申请人： Yasusuke Iwashita , Masakazu Niwa , Takashi Harada , Koujirou Sakai , Shinichi Horikoshi
发明人： Yasusuke Iwashita , Masakazu Niwa , Takashi Harada , Koujirou Sakai , Shinichi Horikoshi
IPC分类号： H02P3/14 , H02P3/18
CPC分类号： H02M5/4585 , H02P3/14 , H02P6/085 , H02P6/28 , H02P7/281
摘要： When the output of motor reaches or exceeds a predetermined value during acceleration of the motor, the control target value of the DC link voltage which is the voltage of a power storage device is gradually lowered in corresponding relationship to the motor output. When the motor enters a constant speed control mode, the DC link control target value is maintained at a constant level. When the motor enters a deceleration control mode, the DC link control target value is gradually raised in corresponding relationship to the motor output, and regenerative power is recovered by the power storage device and reused in the next control cycle.
摘要翻译：当电动机的加速期间电动机的输出达到或超过预定值时，作为蓄电装置的电压的直流母线电压的控制目标值与电动机输出相对应地逐渐降低。当电机进入恒速控制模式时，直流链路控制目标值保持恒定。当电动机进入减速控制模式时，直流母线控制目标值与电动机输出相对应地逐渐升高，再生电力由蓄电装置恢复并在下一个控制周期中重新使用。

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