Inverter device for AC motor control
    1.
    发明授权
    Inverter device for AC motor control 有权
    变频器用于交流电机控制

    公开(公告)号:US06891737B1

    公开(公告)日:2005-05-10

    申请号:US10340678

    申请日:2003-01-13

    摘要: An inverter apparatus is provided with first and second current detectors for detecting the current of two arbitrary phases and further with first and second A/D converters, and they are integrated into one unit. It furthermore stores, in a storage device, a compensation value for compensating for an unbalance between gains of the first current detector and the first A/D converter, and gains of the second current detector and the second A/D converter. By multiplying the detected current value of either one of the detected phases by this compensation value, it equalizes the current feedback gains for both phases.

    摘要翻译: 逆变器装置设置有用于检测两个任意相位的电流的第一和第二电流检测器,并且还具有第一和第二A / D转换器,并且它们被集成到一个单元中。 此外,还在存储装置中存储用于补偿第一电流检测器和第一A / D转换器的增益之间的不平衡的补偿值,以及第二电流检测器和第二A / D转换器的增益。 通过将检测到的相位中的任何一个的检测的电流值乘以该补偿值,则它使两相的电流反馈增益相等。

    Die cushion drive system
    2.
    发明授权
    Die cushion drive system 有权
    模具缓冲驱动系统

    公开(公告)号:US07398667B2

    公开(公告)日:2008-07-15

    申请号:US11282636

    申请日:2005-11-21

    IPC分类号: B21J9/18

    CPC分类号: B21D24/02

    摘要: A die cushion drive system provided with a servo motor serving as a source of drive power for a die cushion of a press machine and a power circuit with a regeneration function which regenerates energy from the servo motor and returns it to an AC power supply, whereby it is possible to power the die cushion drive system by a servo motor and return the regenerated energy of this servo motor to the power source so as to save on energy.

    摘要翻译: 一种模具缓冲驱动系统,其具有伺服电动机,该伺服电动机用作压力机的模具缓冲器的驱动力源和具有再生功能的电力回路,该再生功能从伺服电动机再生能量并将其返回到AC电源,由此 可以通过伺服电机为模具缓冲驱动系统供电,并且将该伺服电动机的再生能量返回到电源以节省能量。

    Die cushion drive system
    3.
    发明申请
    Die cushion drive system 有权
    模具缓冲驱动系统

    公开(公告)号:US20060107723A1

    公开(公告)日:2006-05-25

    申请号:US11282636

    申请日:2005-11-21

    IPC分类号: B21D22/00

    CPC分类号: B21D24/02

    摘要: A die cushion drive system provided with a servo motor serving as a source of drive power for a die cushion of a press machine and a power circuit with a regeneration function which regenerates energy from the servo motor and returns it to an AC power supply, whereby it is possible to power the die cushion drive system by a servo motor and return the regenerated energy of this servo motor to the power source so as to save on energy.

    摘要翻译: 一种模具缓冲驱动系统,其具有伺服电动机,该伺服电动机用作压力机的模具缓冲器的驱动力源和具有再生功能的电力回路,该再生功能从伺服电动机再生能量并将其返回到AC电源,由此 可以通过伺服电机为模具缓冲驱动系统供电,并且将该伺服电动机的再生能量返回到电源以节省能量。

    Motor driving apparatus
    5.
    发明申请
    Motor driving apparatus 有权
    电机驱动装置

    公开(公告)号:US20050052144A1

    公开(公告)日:2005-03-10

    申请号:US10936543

    申请日:2004-09-09

    摘要: A motor driving apparatus capable of drivingly controlling a plurality of inverter units with a single motor driving command from a motor control unit, and thereby control a large-capacity motor or the like. The motor control unit sends out a single motor driving command (torque command) S. An intermediary unit obtains motor driving commands S×A1 to S×A4 for the inverter units by multiplying the motor driving command S by each of coefficients A1 to A4 set in advance. The inverter units are fed with the motor driving commands S×A1 to S×A4 individually and drive a single motor. Since the motor is driven by the total current supplied by the inverter units, the motor can generate a large torque. The motor control unit only needs to generate a single motor driving command S, and hence only needs to operate a single processing part. Hence, the motor control unit can generate and send out motor driving commands for other motors to drive them.

    摘要翻译: 一种电动机驱动装置,其能够通过来自电动机控制单元的单个电动机驱动指令来驱动地控制多个逆变器单元,从而控制大容量电动机等。 电动机控制单元发出单个电动机驱动指令(转矩指令)S.中间单元通过将电动机驱动指令S乘以预先设定的系数A1〜A4中的每一个,来获得逆变器单元的电动机驱动指令SxA1〜SxA4。 逆变器单元分别供给电动机驱动指令SxA1〜SxA4,驱动单个电动机。 由于电动机由逆变器单元提供的总电流驱动,电动机可以产生大的转矩。 电机控制单元仅需要生成单个电机驱动指令S,因此仅需要操作单个处理部件。 因此,电动机控制单元可以生成并发送用于其他电动机的电机驱动命令来驱动它们。

    Motor driving apparatus
    6.
    发明授权
    Motor driving apparatus 有权
    电机驱动装置

    公开(公告)号:US07196488B2

    公开(公告)日:2007-03-27

    申请号:US10936543

    申请日:2004-09-09

    IPC分类号: G05B11/28

    摘要: A motor driving apparatus capable of drivingly controlling a plurality of inverter units with a single motor driving command from a motor control unit, and thereby control a large-capacity motor or the like. The motor control unit sends out a single motor driving command (torque command) S. An intermediary unit obtains motor driving commands S×A1 to S×A4 for the inverter units by multiplying the motor driving command S by each of coefficients A1 to A4 set in advance. The inverter units are fed with the motor driving commands S×A1 to S×A4 individually and drive a single motor. Since the motor is driven by the total current supplied by the inverter units, the motor can generate a large torque. The motor control unit only needs to generate a single motor driving command S, and hence only needs to operate a single processing part. Hence, the motor control unit can generate and send out motor driving commands for other motors to drive them.

    摘要翻译: 一种电动机驱动装置,其能够通过来自电动机控制单元的单个电动机驱动指令来驱动地控制多个逆变器单元,从而控制大容量电动机等。 电机控制单元发出单个电动机驱动指令(转矩指令)S.中间单元通过将电动机驱动指令S乘以系数A 1至A 4中的每一个来获得用于逆变器单元的电动机驱动指令SxA 1至SxA 4 提前。 逆变器单元分别供给电动机驱动指令SxA 1〜SxA 4,驱动单个电动机。 由于电动机由逆变器单元提供的总电流驱动,电动机可以产生大的转矩。 电机控制单元仅需要生成单个电机驱动指令S,因此仅需要操作单个处理部件。 因此,电动机控制单元可以生成并发送用于其他电动机的电机驱动命令来驱动它们。

    SERVO AMPLIFIER WITH REGENERATIVE FUNCTION
    7.
    发明申请
    SERVO AMPLIFIER WITH REGENERATIVE FUNCTION 审中-公开
    具有再生功能的伺服放大器

    公开(公告)号:US20090230898A1

    公开(公告)日:2009-09-17

    申请号:US12356928

    申请日:2009-01-21

    IPC分类号: H02P3/14

    CPC分类号: H02P3/18

    摘要: A servo amplifier for a robot capable of avoiding an excessive capacity for dealing with a regenerative power to achieve downsizing, cost reduction and energy saving of the device. A servo amplifier for driving servomotors of a robot to perform an operation using an electric power from a power source. The servo amplifier comprises a changeable converter connected with the power source and a plurality of inverters electrically connected with the converter and the servomotors. The changeable converter is selectively provided as a converter having a regenerative function of returning a regenerative power generated in the servomotors to the power source, or a converter having a regenerative function of discharging the regenerative power through a resistor, depending on conditions of the operation by the robot.

    摘要翻译: 一种用于机器人的伺服放大器,其能够避免用于处理再生电力的过剩能力,以实现装置的小型化,降低成本和节能。 一种伺服放大器,用于驱动机器人的伺服电动机,以使用来自电源的电力进行操作。 伺服放大器包括与电源连接的可变换器和与转换器和伺服电机电连接的多个逆变器。 可选择地提供可变转换器作为转换器,其具有将在伺服电动机中产生的再生电力返回到电源的再生功能,或者具有通过电阻器再生功率放电的再生功能的转换器,这取决于根据操作的条件 机器人。