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1. 发明授权

US07012397B2 Encoder and control apparatus for motor 失效
标题翻译：电机编码器及控制装置
公开(公告)号：US07012397B2
公开(公告)日：2006-03-14
申请号：US11061544
申请日：2005-02-18
申请人： Mitsuyuki Taniguchi , Keisuke Imai , Ichirou Nagatomo , Shinichi Horikoshi , Takashi Harada
发明人： Mitsuyuki Taniguchi , Keisuke Imai , Ichirou Nagatomo , Shinichi Horikoshi , Takashi Harada
IPC分类号： H02P5/00 , H03M1/48
CPC分类号： H03M1/109 , H03M1/485
摘要： In a control apparatus, a “characteristic value calculation” block calculates a characteristic value (such as amplitude value, offset value, or waveform distortion for each phase of two-phase sinusoidal signals optically input from an encoder, or phase difference between the two phase signals) for each of the two-phase sinusoidal signals, and an “alarm detection” block checks the presence or absence of an excursion outside a predetermined allowable range and, if such an excursion is detected, produces an alarm indication or the like. Each time the “present characteristic value” is input, a “characteristic value comparison” block compares it with “previous characteristic values”, and analyzes the result of the comparison. That is, the difference between the present value and each previous data is calculated, and the largest amount of variation (with plus or minus sign) is obtained; if this amount is larger than a predetermined value, a signal indicating an “imminent failure” is output. In an alternative method, the present value is compared with a characteristic value calculated from an encoder reference signal. Further, the characteristic value monitoring and comparison may be performed within the encoder. In this way, data useful for the prediction of encoder failure, etc. is provided.
摘要翻译：在控制装置中，“特征值计算”块计算从编码器光输入的两相正弦信号的各相的幅值，偏移值或波形失真或两相之间的相位差的特征值信号），并且“报警检测”块检查在预定允许范围之外的偏移的存在或不存在，并且如果检测到这样的偏移，则产生报警指示等。每当输入“当前特征值”时，“特征值比较”块将其与“先前特征值”进行比较，并分析比较结果。也就是说，计算当前值和每个先前数据之间的差异，并且获得最大的变化量（具有加号或减号）; 如果该量大于预定值，则输出表示“即将发生故障”的信号。在替代方法中，将当前值与从编码器参考信号计算的特征值进行比较。此外，可以在编码器内执行特征值监视和比较。以这种方式，提供了用于预测编码器故障等的数据。

2. 发明申请

US20050182591A1 Encoder and control apparatus for motor 失效
标题翻译：电机编码器及控制装置
公开(公告)号：US20050182591A1
公开(公告)日：2005-08-18
申请号：US11061544
申请日：2005-02-18
申请人： Mitsuyuki Taniguchi , Keisuke Imai , Ichirou Nagatomo , Shinichi Horikoshi , Takashi Harada
发明人： Mitsuyuki Taniguchi , Keisuke Imai , Ichirou Nagatomo , Shinichi Horikoshi , Takashi Harada
IPC分类号： G01D5/245 , G01D5/12 , H02P29/00 , H03M1/10 , H03M1/48 , G06F15/00
CPC分类号： H03M1/109 , H03M1/485
摘要： In a control apparatus, a “characteristic value calculation” block calculates a characteristic value (such as amplitude value, offset value, or waveform distortion for each phase of two-phase sinusoidal signals optically input from an encoder, or phase difference between the two phase signals) for each of the two-phase sinusoidal signals, and an “alarm detection” block checks the presence or absence of an excursion outside a predetermined allowable range and, if such an excursion is detected, produces an alarm indication or the like. Each time the “present characteristic value” is input, a “characteristic value comparison” block compares it with “previous characteristic values”, and analyzes the result of the comparison. That is, the difference between the present value and each previous data is calculated, and the largest amount of variation (with plus or minus sign) is obtained; if this amount is larger than a predetermined value, a signal indicating an “imminent failure” is output. In an alternative method, the present value is compared with a characteristic value calculated from an encoder reference signal. Further, the characteristic value monitoring and comparison may be performed within the encoder. In this way, data useful for the prediction of encoder failure, etc. is provided.
摘要翻译：在控制装置中，“特征值计算”块计算从编码器光输入的两相正弦信号的各相的幅值，偏移值或波形失真或两相之间的相位差的特征值信号），并且“报警检测”块检查在预定允许范围之外的偏移的存在或不存在，并且如果检测到这样的偏移，则产生报警指示等。每当输入“当前特征值”时，“特征值比较”块将其与“先前特征值”进行比较，并分析比较结果。也就是说，计算当前值和每个先前数据之间的差异，并且获得最大的变化量（具有加号或减号）; 如果该量大于预定值，则输出表示“即将发生故障”的信号。在替代方法中，将当前值与从编码器参考信号计算的特征值进行比较。此外，可以在编码器内执行特征值监视和比较。以这种方式，提供了用于预测编码器故障等的数据。

3. 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。

4. 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。

5. 发明申请

US20110238338A1 MOTOR DRIVING APPARATUS EASILY ANALYZABLE FOR CAUSE OF FAULT 审中-公开
标题翻译：电机驱动装置易于因故障原因分析
公开(公告)号：US20110238338A1
公开(公告)日：2011-09-29
申请号：US13029496
申请日：2011-02-17
申请人： Yasusuke IWASHITA , Shinichi Horikoshi , Takashi Harada , Koujirou Sakai
发明人： Yasusuke IWASHITA , Shinichi Horikoshi , Takashi Harada , Koujirou Sakai
IPC分类号： G06F19/00 , G01R31/00
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。

6. 发明授权

US08624538B2 Motor driving apparatus having function of dynamically switching converter operation mode of AC/DC converter 有权
标题翻译：具有动态切换AC / DC转换器转换器工作模式功能的电机驱动装置
公开(公告)号：US08624538B2
公开(公告)日：2014-01-07
申请号：US13052563
申请日：2011-03-21
申请人： Tomokazu Yoshida , Takashi Harada , Shinichi Horikoshi , Yasusuke Iwashita
发明人： Tomokazu Yoshida , Takashi Harada , Shinichi Horikoshi , Yasusuke Iwashita
IPC分类号： G05B11/28
CPC分类号： H02M7/5387 , H02M1/32 , H02M5/4585 , H02M2001/327 , H02P27/08
摘要： A motor driving apparatus is provided that performs AC/DC conversion by suppressing harmonics of the input at the time of normal operation, while on the other hand, allowing system operation to continue in the event of an overload by avoiding system stoppage. The motor driving apparatus, which drives a motor by supplying power from an AC power supply, includes: an AC/DC converter having a converter operation mode which is switched between a PWM converter operation mode in which an AC input voltage is converted into a DC voltage by applying PWM control to a plurality of power switching devices connected in serial and parallel fashion and a diode rectifier operation mode in which an AC input voltage is converted into a DC voltage by using a plurality of diodes each connected in reverse parallel with an associated one of the plurality of power switching devices; and a converter control unit which dynamically switches the converter operation mode of the AC/DC converter according to a load during powering of the motor.
摘要翻译：提供一种电动机驱动装置，其通过抑制正常操作时的输入的谐波来执行AC / DC转换，而另一方面，通过避免系统停止，允许系统操作在过载的情况下继续。通过从AC电源供电来驱动电动机的电动机驱动装置包括：AC / DC转换器，其具有转换器操作模式，该转换器操作模式在将AC输入电压转换为DC的PWM转换器工作模式之间切换通过对串联和并联连接的多个功率开关器件施加PWM控制，以及二极管整流器操作模式，其中通过使用多个二极管将AC输入电压转换成DC电压，所述多个二极管与相关联的反向并联连接多个电源开关装置中的一个; 以及转换器控制单元，其在电动机供电期间根据负载来动态地切换AC / DC转换器的转换器操作模式。

7. 发明授权

US08410744B2 Motor driving apparatus 有权
标题翻译：电机驱动装置
公开(公告)号：US08410744B2
公开(公告)日：2013-04-02
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： H02P27/04
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。

8. 发明授权

US08384335B2 Motor driving apparatus having DC link voltage regulating function 有权
标题翻译：具有直流母线电压调节功能的电机驱动装置
公开(公告)号：US08384335B2
公开(公告)日：2013-02-26
申请号：US13208553
申请日：2011-08-12
申请人： Wataru Kuroki , Takashi Harada , Shinichi Horikoshi , Yasusuke Iwashita
发明人： Wataru Kuroki , Takashi Harada , Shinichi Horikoshi , Yasusuke Iwashita
IPC分类号： H02P27/04
CPC分类号： H02M5/4585 , H02P23/20
摘要： A motor driving apparatus comprises: an AC/DC converter which converts AC voltage supplied from an AC power source into DC voltage through PWM switching control of a power switching device; and a DC/AC converter which converts the DC voltage into variable-frequency AC voltage for driving a motor in a controlled manner. The AC/DC converter includes: a control unit which generates, based on an error between the DC voltage and a DC voltage command value, a PWM signal for the PWM switching control of the power switching device; and a frequency/gain varying unit which sets the frequency of the PWM signal to be generated by the control unit and a control gain in the control unit higher than their normal levels during a period in which a load in the DC/AC converter varies.
摘要翻译：一种电动机驱动装置，包括：AC / DC转换器，其通过电力开关装置的PWM开关控制将从AC电源提供的AC电压转换为DC电压; 以及DC / AC转换器，其将DC电压转换为可变频率AC电压，以受控的方式驱动电动机。 AC / DC转换器包括：控制单元，其基于直流电压和直流电压指令值之间的误差生成用于功率开关器件的PWM开关控制的PWM信号; 以及频率/增益变化单元，其在DC / AC转换器中的负载变化的时段期间，将由控制单元产生的PWM信号的频率和控制单元中的控制增益设置为高于其正常电平。

9. 发明授权

US08283880B2 Motor drive device with function of switching to power regenerative operation mode 有权
标题翻译：具有切换到动力再生运行模式功能的电机驱动装置
公开(公告)号：US08283880B2
公开(公告)日：2012-10-09
申请号：US13152573
申请日：2011-06-03
申请人： Yasusuke Iwashita , Shinichi Horikoshi , Takashi Harada , Shinichi Mizukami
发明人： Yasusuke Iwashita , Shinichi Horikoshi , Takashi Harada , Shinichi Mizukami
IPC分类号： H02P3/18
CPC分类号： H02M7/797 , H02M1/32
摘要： A motor drive device including a converter for a power running operation and a power regenerative operation. The converter has power switching elements, a first power regenerative control unit for controlling the power switching elements in the power regenerative operation by using pulse width modulation signal whose pulse width changes with a value indicated by a command signal; a second power regenerative control unit for controlling the power switching elements in the power regenerative operation to generate respective power regenerative currents in a phase representing the maximum potential among three phases of a three-phase AC power supply and a phase representing the minimum potential among the three phases, and a power regenerative operation switching unit for switching a control of the power switching elements in the power regenerative operation between a control by the first power regenerative control unit and a control by the second power regenerative control unit.
摘要翻译：一种电动机驱动装置，包括用于动力运行操作的转换器和动力再生操作。转换器具有功率开关元件，第一功率再生控制单元，用于通过使用其脉冲宽度随指令信号所指示的值而变化的脉冲宽度调制信号来控制功率再生操作中的功率开关元件; 第二功率再生控制单元，用于在功率再生操作中控制功率开关元件，以在表示三相AC电源的三相中的最大电位的相位中产生相应的功率再生电流，以及表示在三相AC电源中的最小电位的相位三相以及功率再生操作切换单元，用于在由第一再生控制单元进行的控制与第二再生控制单元的控制之间切换功率再生动作中的功率开关元件的控制。

10. 发明申请

US20110260662A1 MOTOR DRIVING APPARATUS HAVING FUNCTION OF DYNAMICALLY SWITCHING CONVERTER OPERATION MODE OF AC/DC CONVERTER 有权
标题翻译：具有AC / DC转换器动态切换转换器运行模式功能的电动机驱动装置
公开(公告)号：US20110260662A1
公开(公告)日：2011-10-27
申请号：US13052563
申请日：2011-03-21
申请人： Tomokazu YOSHIDA , Takashi Harada , Shinichi Horikoshi , Yasusuke Iwashita
发明人： Tomokazu YOSHIDA , Takashi Harada , Shinichi Horikoshi , Yasusuke Iwashita
IPC分类号： H02P27/00
CPC分类号： H02M7/5387 , H02M1/32 , H02M5/4585 , H02M2001/327 , H02P27/08
摘要： A motor driving apparatus is provided that performs AC/DC conversion by suppressing harmonics of the input at the time of normal operation, while on the other hand, allowing system operation to continue in the event of an overload by avoiding system stoppage. The motor driving apparatus, which drives a motor by supplying power from an AC power supply, includes: an AC/DC converter having a converter operation mode which is switched between a PWM converter operation mode in which an AC input voltage is converted into a DC voltage by applying PWM control to a plurality of power switching devices connected in serial and parallel fashion and a diode rectifier operation mode in which an AC input voltage is converted into a DC voltage by using a plurality of diodes each connected in reverse parallel with an associated one of the plurality of power switching devices; and a converter control unit which dynamically switches the converter operation mode of the AC/DC converter according to a load during powering of the motor.
摘要翻译：提供一种电动机驱动装置，其通过抑制正常操作时的输入的谐波来执行AC / DC转换，而另一方面，通过避免系统停止，允许系统操作在过载的情况下继续。通过从AC电源供电来驱动电动机的电动机驱动装置包括：AC / DC转换器，其具有转换器操作模式，该转换器操作模式在将AC输入电压转换为DC的PWM转换器工作模式之间切换通过对串联和并联连接的多个功率开关器件施加PWM控制，以及二极管整流器操作模式，其中通过使用多个二极管将AC输入电压转换成DC电压，所述多个二极管与相关联的反向并联连接多个电源开关装置中的一个; 以及转换器控制单元，其在电动机供电期间根据负载来动态地切换AC / DC转换器的转换器操作模式。

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