会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 7. 发明授权
    • Motor driving apparatus having DC link voltage regulating function
    • 具有直流母线电压调节功能的电机驱动装置
    • US08384335B2
    • 2013-02-26
    • US13208553
    • 2011-08-12
    • Wataru KurokiTakashi HaradaShinichi HorikoshiYasusuke Iwashita
    • Wataru KurokiTakashi HaradaShinichi HorikoshiYasusuke Iwashita
    • H02P27/04
    • H02M5/4585H02P23/20
    • 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.
    • 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。
    • 8. 发明授权
    • Motor drive device with function of switching to power regenerative operation mode
    • 具有切换到动力再生运行模式功能的电机驱动装置
    • US08283880B2
    • 2012-10-09
    • US13152573
    • 2011-06-03
    • Yasusuke IwashitaShinichi HorikoshiTakashi HaradaShinichi Mizukami
    • Yasusuke IwashitaShinichi HorikoshiTakashi HaradaShinichi Mizukami
    • H02P3/18
    • H02M7/797H02M1/32
    • 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.
    • 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。
    • 9. 发明申请
    • MOTOR DRIVING APPARATUS HAVING FUNCTION OF DYNAMICALLY SWITCHING CONVERTER OPERATION MODE OF AC/DC CONVERTER
    • 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
    • US20110260662A1
    • 2011-10-27
    • US13052563
    • 2011-03-21
    • Tomokazu YOSHIDATakashi HaradaShinichi HorikoshiYasusuke Iwashita
    • Tomokazu YOSHIDATakashi HaradaShinichi HorikoshiYasusuke Iwashita
    • H02P27/00
    • H02M7/5387H02M1/32H02M5/4585H02M2001/327H02P27/08
    • 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.
    • 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。
    • 10. 发明授权
    • Motor driving apparatus having function of dynamically switching converter operation mode of AC/DC converter
    • 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
    • US08624538B2
    • 2014-01-07
    • US13052563
    • 2011-03-21
    • Tomokazu YoshidaTakashi HaradaShinichi HorikoshiYasusuke Iwashita
    • Tomokazu YoshidaTakashi HaradaShinichi HorikoshiYasusuke Iwashita
    • G05B11/28
    • H02M7/5387H02M1/32H02M5/4585H02M2001/327H02P27/08
    • 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.
    • 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。