SOFT-STARTER AC-AC CONVERTER WITH INTEGRATED SOLID-STATE CIRCUIT BREAKER AND METHOD OF OPERATION THEREOF

    公开(公告)号:US20190089146A1

    公开(公告)日:2019-03-21

    申请号:US15711152

    申请日:2017-09-21

    申请人: Eaton Corporation

    摘要: An AC-AC power converter, such as a motor soft starter, includes an input connectable to an AC source with a disconnect switch, an output connectable to an AC load, and phase lines connecting the input and output to transmit power. In-line solid-state switching blocks are connected between line terminals and load terminals of the AC source and AC load, respectively, such that each phase line includes a solid-state switching block connected thereto. Free-wheeling solid-state switching blocks are connected to the load terminals at one end and together at a common connection at another end, such that each phase line includes a free-wheeling solid-state switching block connected thereto. Each of the in-line and free-wheeling solid-state switching blocks comprises a bi-directional switching block that selectively controls current and withstands voltage in both directions. The switching blocks also provide soft-starter functions, variable speed control, and integrated circuit breaker protection capability.

    BOARD-LEVEL MOTOR CONTROL SYSTEM WITH INTEGRATED PROTECTION AND CONTROL COMPONENTS

    公开(公告)号:US20190199263A1

    公开(公告)日:2019-06-27

    申请号:US15854096

    申请日:2017-12-26

    申请人: Eaton Corporation

    摘要: A motor control system for selectively controlling power from a power source to a load is provided. The motor control system includes at least one PCB structure and a plurality of protection and control components mounted onto the at least one PCB structure so as to be electrically coupled therewith. The plurality of protection and control components includes a power converter operable to provide a controlled output power to the load, a plurality of switching devices operable to selectively control power flow from the power source into the power converter and to bypass the power converter, and one or more protection devices configured to selectively interrupt current flow from the power source to the power converter during a fault condition. The motor control system also includes a housing enclosing the at least one PCB structure and the plurality of protection and control components.

    Board-level motor control system with integrated protection and control components

    公开(公告)号:US10594246B2

    公开(公告)日:2020-03-17

    申请号:US15854096

    申请日:2017-12-26

    申请人: Eaton Corporation

    摘要: A motor control system for selectively controlling power from a power source to a load is provided. The motor control system includes at least one PCB structure and a plurality of protection and control components mounted onto the at least one PCB structure so as to be electrically coupled therewith. The plurality of protection and control components includes a power converter operable to provide a controlled output power to the load, a plurality of switching devices operable to selectively control power flow from the power source into the power converter and to bypass the power converter, and one or more protection devices configured to selectively interrupt current flow from the power source to the power converter during a fault condition. The motor control system also includes a housing enclosing the at least one PCB structure and the plurality of protection and control components.

    Soft starter system and method of operating same
    5.
    发明授权
    Soft starter system and method of operating same 有权
    软启动器系统及其操作方法

    公开(公告)号:US09160257B2

    公开(公告)日:2015-10-13

    申请号:US14139380

    申请日:2013-12-23

    申请人: Eaton Corporation

    IPC分类号: H02P1/16 H02P1/26

    CPC分类号: H02P1/26 H02P1/04 H02P23/14

    摘要: A system and method for automatically defining and tuning operating parameters for a motor control device with minimal or no operator input is disclosed. The system includes a motor control device electrically connectable to an AC motor and a controller that is programmed to define a motor start-up function based on a rated current of the motor, the motor start-up function comprising an initial torque factor and an initial ramp time. The controller also triggers switching devices of the motor according to the motor start-up function to inject current into the motor during a first trial run, monitors operating conditions of the motor and motor control device during the first trial run, modifies the motor start-up function based on the monitored operating conditions, and triggers the plurality of switching devices according to the modified motor start-up function to inject current into the motor during a subsequent trial run.

    摘要翻译: 公开了一种用于自动定义和调整具有最小或没有操作者输入的电机控制装置的操作参数的系统和方法。 该系统包括电连接到AC电动机的电动机控制装置和被编程为基于电动机的额定电流来定义电动机起动功能的控制器,该电动机起动功能包括初始转矩因子和初始转矩 斜坡时间 控制器还根据电机启动功能触发电动机的开关装置,在第一次试运行期间将电流注入电动机,监测第一次试运行期间电动机和电动机控制装置的运行状态, 基于所监视的操作条件,根据修改的电动机启动功能触发多个开关装置,以在随后的试运行期间将电流注入电动机。

    SOFT STARTER SYSTEM AND METHOD OF OPERATING SAME
    6.
    发明申请
    SOFT STARTER SYSTEM AND METHOD OF OPERATING SAME 有权
    软起动器系统及其操作方法

    公开(公告)号:US20150180377A1

    公开(公告)日:2015-06-25

    申请号:US14139380

    申请日:2013-12-23

    申请人: Eaton Corporation

    IPC分类号: H02P1/26

    CPC分类号: H02P1/26 H02P1/04 H02P23/14

    摘要: A system and method for automatically defining and tuning operating parameters for a motor control device with minimal or no operator input is disclosed. The system includes a motor control device electrically connectable to an AC motor and a controller that is programmed to define a motor start-up function based on a rated current of the motor, the motor start-up function comprising an initial torque factor and an initial ramp time. The controller also triggers switching devices of the motor according to the motor start-up function to inject current into the motor during a first trial run, monitors operating conditions of the motor and motor control device during the first trial run, modifies the motor start-up function based on the monitored operating conditions, and triggers the plurality of switching devices according to the modified motor start-up function to inject current into the motor during a subsequent trial run.

    摘要翻译: 公开了一种用于自动定义和调整具有最小或没有操作者输入的电机控制装置的操作参数的系统和方法。 该系统包括电连接到AC电动机的电动机控制装置和被编程为基于电动机的额定电流来定义电动机起动功能的控制器,该电动机起动功能包括初始转矩因子和初始转矩 斜坡时间 控制器还根据电机启动功能触发电动机的开关装置,在第一次试运行期间将电流注入电动机,监测第一次试运行期间电动机和电动机控制装置的运行状态, 基于所监视的操作条件,根据修改的电动机启动功能触发多个开关装置,以在随后的试运行期间将电流注入电动机。

    SYSTEM FOR MEASURING SOFT STARTER CURRENT AND METHOD OF MAKING SAME
    7.
    发明申请
    SYSTEM FOR MEASURING SOFT STARTER CURRENT AND METHOD OF MAKING SAME 有权
    用于测量软起动器电流的系统及其制造方法

    公开(公告)号:US20150077154A1

    公开(公告)日:2015-03-19

    申请号:US14551727

    申请日:2014-11-24

    申请人: Eaton Corporation

    发明人: Kaijam M. Woodley

    IPC分类号: G01R31/26 G01R31/34 G01R19/00

    摘要: A system for measuring soft starter current includes a current monitoring system having a controller and a current transfer device that includes a first sold state switching device. A first current sensor is coupled to the first solid state switching device and the controller to sense off-state current of the first solid state switching device. The controller is configured to determine an operational status of the first solid state switching device.

    摘要翻译: 一种用于测量软启动器电流的系统包括具有控制器和电流传输装置的电流监测系统,其包括第一销售状态开关装置。 第一电流传感器耦合到第一固态开关装置和控制器以感测第一固态开关装置的截止电流。 控制器被配置为确定第一固态切换装置的操作状态。

    SYSTEM AND METHOD FOR INDUCTION MOTOR SPEED ESTIMATION USING A SOFT STARTER SYSTEM
    9.
    发明申请
    SYSTEM AND METHOD FOR INDUCTION MOTOR SPEED ESTIMATION USING A SOFT STARTER SYSTEM 审中-公开
    使用软启动器系统的感应电机速度估计的系统和方法

    公开(公告)号:US20150349673A1

    公开(公告)日:2015-12-03

    申请号:US14291610

    申请日:2014-05-30

    申请人: Eaton Corporation

    IPC分类号: H02P1/26

    摘要: A system and method for estimating operating characteristics of an induction motor is disclosed. The system includes a motor control device that is electrically connectable between a motor and a power source. The motor control device includes a plurality of switching devices comprising at least one thyristor corresponding to a respective phase of the motor. The motor control device also includes a controller programmed to disconnect the power source from the motor for a predetermined time period following a first plurality of cycles of a mains phase voltage of the power source. The controller is further programmed to measure a back-emf voltage during the predetermined time period, estimate an operating characteristic of the motor from the measured back-emf voltage, and trigger the plurality of switching devices to reconnect the power source to the motor following estimation of the operating characteristic.

    摘要翻译: 公开了一种用于估计感应电动机的操作特性的系统和方法。 该系统包括可在电动机和电源之间电连接的电动机控制装置。 电动机控制装置包括多个开关装置,其包括与电动机的相应相对应的至少一个晶闸管。 电动机控制装置还包括被编程为在电源的电源相电压的第一多个周期之后的预定时间段内断开电源与电动机的控制器。 控制器进一步被编程为在预定时间段期间测量反电动势电压,从所测量的反电动势电压估计电动机的工作特性,并且触发多个开关装置以根据估计将电源重新连接到电动机 的操作特性。