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公开(公告)号：US10116239B2
公开(公告)日：2018-10-30
申请号：US15218116
申请日：2016-07-25
IPC分类号： H02P1/24 , H02P1/02 , H02P1/42 , H02P23/02 , H02P23/08 , H02P23/26 , G05B19/042 , H02H7/09 , H02H11/00
摘要： A system for reducing inrush loading when a source power is restored includes a device for switching power that selectively connects a load to the source of power and a circuit for measuring the AC voltage at the source and for determining when the AC voltage is within operating range. Responsive to the AC voltage being within operating range, the system delays for a time period then connects the load to the source of power by way of the device for switching power.
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2.发明授权公开(公告)号：US08362735B2
公开(公告)日：2013-01-29
申请号：US13041686
申请日：2011-03-07
申请人： Mario M. Marcoccia
发明人： Mario M. Marcoccia
CPC分类号： H02P1/029 , G05B19/042 , H02H7/09 , H02H11/006 , H02P1/028 , H02P1/42 , H02P1/426 , H02P23/02 , H02P23/08 , H02P23/26
摘要： A device for improving efficiency of an induction motor that soft-starts the motor by applying a voltage to the motor that is substantially less than the rated voltage then gradually increasing the voltage while monitoring changes in current drawn by the motor, thereby detecting when maximum efficiency is found. Once maximum efficiency is found, the nominal motor current is found and operating ranges are set. Now, the voltage to the motor is increased/decreased by measuring the phase angle between the voltage and the current to the motor and increasing the voltage when the phase angle is less than a minimum phase angle (determined during soft-start) and decreasing the voltage when the phase angle is greater than or equal to the minimum phase angle as long as the voltage does not fall below a minimum voltage determined during soft-start.
摘要翻译： 一种用于提高感应电动机的效率的装置，其通过向电动机施加基本上小于额定电压的电压来软启动电动机，然后逐渐增加电压，同时监测由电动机汲取的电流的变化，从而检测何时最大效率 被发现。 一旦找到最大效率，就会找到电机额定电流，并设置工作范围。 现在，通过测量电压与电机电流之间的相位角，当相位角小于最小相位角（软启动期间确定）时，增加电压，可以提高/降低电机的电压，并降低 只要电压不低于软启动时确定的最小电压，相位角大于或等于最小相位角时的电压。
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3.发明授权公开(公告)号：US09425714B2
公开(公告)日：2016-08-23
申请号：US14159108
申请日：2014-01-20
CPC分类号： H02P1/029 , G05B19/042 , H02H7/09 , H02H11/006 , H02P1/028 , H02P1/42 , H02P1/426 , H02P23/02 , H02P23/08 , H02P23/26
摘要： A system for controlling power from an AC voltage to an induction motor to reduce surge when power is restored to a power grid is disclosed including, a device for switching power to the induction motor that has a trigger controllable to enable the device to provide a variable amount of power to the induction motor. The system includes a second device for measuring the AC voltage at the source to determine when power is available, hence determining when the AC voltage is within operating range. Responsive to the AC voltage coming within operating range, the system delays for a time period then initiates power to the induction motor by controlling the device for switching power.
摘要翻译： 公开了一种用于控制从AC电压到感应电动机的功率以在功率恢复到电网时减少浪涌的系统，其包括用于向具有可控制的触发器的感应电动机的功率切换功能的装置，以使得装置能够提供可变 感应电机的电量。 该系统包括用于测量源极处的AC电压以确定何时可用的第二装置，因此确定AC电压何时处于工作范围内。 响应于工作范围内的交流电压，系统延迟一段时间，然后通过控制器件开关电源来启动感应电机的电源。
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4.发明申请公开(公告)号：US20140197775A1
公开(公告)日：2014-07-17
申请号：US14159108
申请日：2014-01-20
IPC分类号： H02P1/42
CPC分类号： H02P1/029 , G05B19/042 , H02H7/09 , H02H11/006 , H02P1/028 , H02P1/42 , H02P1/426 , H02P23/02 , H02P23/08 , H02P23/26
摘要： A system for controlling power from an AC voltage to an induction motor to reduce surge when power is restored to a power grid is disclosed including, a device for switching power to the induction motor that has a trigger controllable to enable the device to provide a variable amount of power to the induction motor. The system includes a second device for measuring the AC voltage at the source to determine when power is available, hence determining when the AC voltage is within operating range. Responsive to the AC voltage coming within operating range, the system delays for a time period then initiates power to the induction motor by controlling the device for switching power.
摘要翻译： 公开了一种用于控制从AC电压到感应电动机的功率以在功率恢复到电网时减少浪涌的系统，其包括用于向具有可控制的触发器的感应电动机的功率切换功能的装置，以使得装置能够提供可变 感应电机的电量。 该系统包括用于测量源极处的AC电压以确定何时可用的第二装置，因此确定AC电压何时处于工作范围内。 响应于工作范围内的交流电压，系统延迟一段时间，然后通过控制器件开关电源来启动感应电机的电源。
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5.发明申请公开(公告)号：US20130088183A1
公开(公告)日：2013-04-11
申请号：US13676196
申请日：2012-11-14
IPC分类号： H02P23/00
CPC分类号： H02P1/029 , G05B19/042 , H02H7/09 , H02H11/006 , H02P1/028 , H02P1/42 , H02P1/426 , H02P23/02 , H02P23/08 , H02P23/26
摘要： A device for improving efficiency of an induction motor soft-starts the motor by applying a power to the motor that is substantially less than the rated power of the motor then gradually increasing the power while monitoring changes in current drawn by the motor, thereby detecting when maximum efficiency is found. Once maximum efficiency is found, the nominal motor current is found and operating ranges are set. Now, the phase angle between the voltage and the current to the motor is measured and power to the motor is increasing when the phase angle is less than a minimum phase angle (determined during soft-start) and power to the motor is decreased when the phase angle is greater than or equal to the minimum phase angle as long as the voltage does not fall below a minimum voltage determined during soft-start.
摘要翻译： 用于提高感应电动机的效率的装置通过向电动机施加电力而启动电动机，所述电动机基本上小于电动机的额定功率，然后逐渐增加功率，同时监测由电动机吸取的电流的变化，从而检测何时 发现最大的效率。 一旦找到最大效率，就会找到电机额定电流，并设置工作范围。 现在，当相位角小于最小相位角（在软启动期间确定）时，测量到电动机的电压和电流之间的相位角，并且当电动机的功率减小时，电动机的功率增加 只要电压不低于在软启动期间确定的最小电压，相位角大于或等于最小相位角。
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6.发明授权公开(公告)号：US08633668B2
公开(公告)日：2014-01-21
申请号：US13943929
申请日：2013-07-17
IPC分类号： H02P23/02
CPC分类号： H02P1/029 , G05B19/042 , H02H7/09 , H02H11/006 , H02P1/028 , H02P1/42 , H02P1/426 , H02P23/02 , H02P23/08 , H02P23/26
摘要： A device for improving efficiency of an induction motor soft-starts the motor by applying a power to the motor that is substantially less than the rated power of the motor then gradually increasing the power while monitoring changes in current drawn by the motor, thereby detecting when maximum efficiency is found. Once maximum efficiency is found, the nominal motor current is found and operating ranges are set. Now, the phase angle between the voltage and the current to the motor is measured and power to the motor is increasing when the phase angle is less than a minimum phase angle (determined during soft-start) and power to the motor is decreased when the phase angle is greater than or equal to the minimum phase angle as long as the voltage does not fall below a minimum voltage determined during soft-start.
摘要翻译： 用于提高感应电动机的效率的装置通过向电动机施加电力而启动电动机，所述电动机基本上小于电动机的额定功率，然后逐渐增加功率，同时监测由电动机吸取的电流的变化，从而检测何时 发现最大的效率。 一旦找到最大效率，就会找到电机额定电流，并设置工作范围。 现在，当相位角小于最小相位角（在软启动期间确定）时，测量到电动机的电压和电流之间的相位角，并且当电动机的功率减小时，电动机的功率增加 只要电压不低于在软启动期间确定的最小电压，相位角大于或等于最小相位角。
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7.发明授权公开(公告)号：US08502492B2
公开(公告)日：2013-08-06
申请号：US13676196
申请日：2012-11-14
CPC分类号： H02P1/029 , G05B19/042 , H02H7/09 , H02H11/006 , H02P1/028 , H02P1/42 , H02P1/426 , H02P23/02 , H02P23/08 , H02P23/26
摘要： A device for improving efficiency of an induction motor soft-starts the motor by applying a power to the motor that is substantially less than the rated power of the motor then gradually increasing the power while monitoring changes in current drawn by the motor, thereby detecting when maximum efficiency is found. Once maximum efficiency is found, the nominal motor current is found and operating ranges are set. Now, the phase angle between the voltage and the current to the motor is measured and power to the motor is increasing when the phase angle is less than a minimum phase angle (determined during soft-start) and power to the motor is decreased when the phase angle is greater than or equal to the minimum phase angle as long as the voltage does not fall below a minimum voltage determined during soft-start.
摘要翻译： 用于提高感应电动机的效率的装置通过向电动机施加电力而启动电动机，所述电动机基本上小于电动机的额定功率，然后逐渐增加功率，同时监测由电动机吸取的电流的变化，从而检测何时 发现最大的效率。 一旦找到最大效率，就会找到电机额定电流，并设置工作范围。 现在，当相位角小于最小相位角（在软启动期间确定）时，测量到电动机的电压和电流之间的相位角，并且当电动机的功率减小时，电动机的功率增加 只要电压不低于在软启动期间确定的最小电压，相位角大于或等于最小相位角。
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