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公开(公告)号：US20140055065A1
公开(公告)日：2014-02-27
申请号：US13590704
申请日：2012-08-21
IPC分类号： H02P23/14
CPC分类号： H02P23/14 , H02P23/009 , H02P2205/07
摘要： An electric motor in an appliance and a method of controlling the motor to achieve speeds greater than a base speed of the motor is provided. To achieve speeds above the base speed of the motor, field weakening can be implemented by applying a field weakening angle to a phase advance angle between a desired stator flux and a rotor flux. The field weakening angle can be based on the current speed of the motor. The field weakening angle can be a fixed angle and can be determined by comparing the current speed of the motor with a predetermined threshold. In addition, the magnitude of the electrical signal applied to the motor can be adjusted during field weakening based on a desired speed of the motor where the electrical signal can be a voltage.
摘要翻译： 提供了一种电器中的电动机以及控制电动机以实现大于电动机的基准速度的速度的方法。 为了实现高于电动机的基准速度的速度，可以通过对期望的定子磁通和转子磁通之间的相位提前角施加磁场弱化角来实现磁场弱化。 磁场弱化角度可以基于电机的当前速度。 磁场弱化角度可以是固定角度，可以通过将电动机的当前速度与预定阈值进行比较来确定。 此外，施加到电动机的电信号的大小可以在电场弱化期间根据电动机的期望速度进行调整，其中电信号可以是电压。
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公开(公告)号：US08866423B2
公开(公告)日：2014-10-21
申请号：US13590704
申请日：2012-08-21
IPC分类号： H02P6/08
CPC分类号： H02P23/14 , H02P23/009 , H02P2205/07
摘要： An electric motor in an appliance and a method of controlling the motor to achieve speeds greater than a base speed of the motor is provided. To achieve speeds above the base speed of the motor, field weakening can be implemented by applying a field weakening angle to a phase advance angle between a desired stator flux and a rotor flux. The field weakening angle can be based on the current speed of the motor. The field weakening angle can be a fixed angle and can be determined by comparing the current speed of the motor with a predetermined threshold. In addition, the magnitude of the electrical signal applied to the motor can be adjusted during field weakening based on a desired speed of the motor where the electrical signal can be a voltage.
摘要翻译： 提供了一种电器中的电动机以及控制电动机以实现大于电动机的基准速度的速度的方法。 为了实现高于电动机的基准速度的速度，可以通过对期望的定子磁通和转子磁通之间的相位提前角施加磁场弱化角来实现磁场弱化。 磁场弱化角度可以基于电机的当前速度。 磁场弱化角度可以是固定角度，可以通过将电动机的当前速度与预定阈值进行比较来确定。 此外，施加到电动机的电信号的大小可以在电场弱化期间根据电动机的期望速度进行调整，其中电信号可以是电压。
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公开(公告)号：US08813288B2
公开(公告)日：2014-08-26
申请号：US13357813
申请日：2012-01-25
IPC分类号： D06F33/02
CPC分类号： D06F33/02 , D06F37/203 , G01M1/28 , G01M99/005
摘要： Systems and methods for detecting an out of balance condition for a washing machine are disclosed. The wash basket of the washing machine is rotated at a constant predetermined rotational speed. If the washing machine has an unbalanced load, the wash tub will strike the cabinet as the basket rotates in the wash tub. The tub strikes cause the wash basket to lose momentum. The inverter drive control system causes the inverter to provide more current through the motor phases to the motor to maintain constant speed. From the value of the current, the severity of the tub strikes during a test period can be determined. An out of balance condition can be detected and measured based at least in part on the severity of the tub strikes.
摘要翻译： 公开了一种用于检测洗衣机不平衡状况的系统和方法。 洗衣机的洗篮以恒定的预定旋转速度旋转。 如果洗衣机具有不平衡的负载，当洗篮在洗涤桶中旋转时，洗涤桶将撞击柜子。 水桶撞击导致洗篮失去动力。 逆变器驱动控制系统使变频器通过电机相向电机提供更多的电流，以保持恒定的速度。 从当前值可以确定在测试期间桶的严重程度。 可以至少部分地基于浴缸撞击的严重性来检测和测量失衡状态。
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公开(公告)号：US20130186199A1
公开(公告)日：2013-07-25
申请号：US13357813
申请日：2012-01-25
CPC分类号： D06F33/02 , D06F37/203 , G01M1/28 , G01M99/005
摘要： Systems and methods for detecting an out of balance condition for a washing machine are disclosed. The wash basket of the washing machine is rotated at a constant predetermined rotational speed. If the washing machine has an unbalanced load, the wash tub will strike the cabinet as the basket rotates in the wash tub. The tub strikes cause the wash basket to lose momentum. The inverter drive control system causes the inverter to provide more current through the motor phases to the motor to maintain constant speed. From the value of the current, the severity of the tub strikes during a test period can be determined. An out of balance condition can be detected and measured based at least in part on the severity of the tub strikes.
摘要翻译： 公开了一种用于检测洗衣机不平衡状况的系统和方法。 洗衣机的洗篮以恒定的预定旋转速度旋转。 如果洗衣机具有不平衡的负载，当洗篮在洗涤桶中旋转时，洗涤桶将撞击柜子。 水桶撞击导致洗篮失去动力。 逆变器驱动控制系统使变频器通过电机相向电机提供更多的电流，以保持恒定的速度。 从当前值可以确定在测试期间桶的严重程度。 可以至少部分地基于浴缸撞击的严重性来检测和测量失衡状态。
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