SYSTEMS AND METHODS FOR OPTIMIZING AN EFFICIENCY OF A VARIABLE FREQUENCY DRIVE
    1.
    发明申请
    SYSTEMS AND METHODS FOR OPTIMIZING AN EFFICIENCY OF A VARIABLE FREQUENCY DRIVE 审中-公开
    用于优化变频驱动器效率的系统和方法

    公开(公告)号:WO2018064663A1

    公开(公告)日:2018-04-05

    申请号:PCT/US2017/054742

    申请日:2017-10-02

    IPC分类号: H02P27/04 H02P21/20 E21B43/12

    摘要: A system including a control system is provided. The control system includes a main drive that receives power from a power source and outputs a variable frequency and a variable amplitude AC voltage. The control system also includes a controller to interface with the main drive and an electric machine. The controller receives one or more electrical signals associated with an operating condition of the electric machine from one or more sensors disposed between the electric machine and the main drive. The controller determines correction information based on the received electrical signals and based on a desired operating condition of the electric machine. The controller transmits the correction information to the main drive. The correction information corresponds to a rotor position of the electric machine or operating commands configured to implement the desired operating condition of the electric machine.

    摘要翻译: 提供了一种包括控制系统的系统。 控制系统包括从电源接收电力并输出可变频率和可变幅度AC电压的主驱动器。 控制系统还包括与主驱动器和电机接口的控制器。 控制器从布置在电机和主驱动器之间的一个或多个传感器接收与电机的运行状况相关联的一个或多个电信号。 控制器基于接收到的电信号并且基于电机的期望操作状况来确定校正信息。 控制器将校正信息传输到主驱动器。 校正信息对应于电机的转子位置或者被配置为实现电机的期望操作条件的操作命令。

    DUAL MOTOR DRIVE FOR ELECTRIC SUBMERSIBLE PUMP SYSTEMS
    2.
    发明申请
    DUAL MOTOR DRIVE FOR ELECTRIC SUBMERSIBLE PUMP SYSTEMS 审中-公开
    双电机驱动电动潜水泵系统

    公开(公告)号:WO2017087737A1

    公开(公告)日:2017-05-26

    申请号:PCT/US2016/062655

    申请日:2016-11-18

    IPC分类号: E21B43/12

    摘要: An electric submersible pump (ESP, 22) control system (36) includes a primary variable frequency drive (VFD, 38), a transformer (42), and a secondary VFD (44). The primary variable frequency drive (VFD) is configured to receive power from a power source (34) and output a variable voltage and variable amplitude AC voltage. The transformer has a low voltage side and a high voltage side of the transformer. The primary VFD is coupled to the low voltage side. The transformer is configured to receive the AC voltage from the primary VFD and output a stepped up AC voltage. The secondary VFD is coupled to the high voltage side of the transformer, wherein the secondary VFD is configured to provide a supplemental voltage in addition to the stepped up AC voltage when the operational values of an electric motor (30) exceed a threshold value.

    摘要翻译: 电潜泵(ESP,22)控制系统(36)包括主变频驱动器(VFD,38),变压器(42)和次级VFD(44)。 主变频驱动器(VFD)被配置为从电源(34)接收电力并且输出可变电压和可变振幅AC电压。 变压器具有低压侧和高压侧。 主VFD连接到低压侧。 变压器被配置为接收来自主VFD的AC电压并输出升高的AC电压。 次级VFD耦合到变压器的高压侧,其中,当电动机(30)的操作值超过阈值时,次级VFD除了提高的AC电压之外还提供补充电压。 / p>

    BACKSPIN MANAGEMENT FOR ELECTRIC SUBMERSIBLE PUMP
    4.
    发明申请
    BACKSPIN MANAGEMENT FOR ELECTRIC SUBMERSIBLE PUMP 审中-公开
    电动潜水泵的背光管理

    公开(公告)号:WO2018064433A1

    公开(公告)日:2018-04-05

    申请号:PCT/US2017/054207

    申请日:2017-09-29

    IPC分类号: E21B43/12

    摘要: A method of controlling an electric motor assembly (22) includes detecting a backspin event of an electric motor, and managing a response to the detected backspin event of the electric motor. The backspin event of the electric motor is detected based at least in part on feedback from a sensor (32) configured to measure a current or a voltage on a cable coupled to the electric motor. The response includes communicating an alert to personnel, controlling the voltage on the cable to be less than a voltage threshold, or any combination thereof.

    摘要翻译: 控制电动机组件(22)的方法包括检测电动机的反向旋转事件并管理对检测到的电动机的反向旋转事件的响应。 至少部分地基于来自被配置成测量耦合到电动机的电缆上的电流或电压的传感器(32)的反馈来检测电动机的反旋事件。 该响应包括向人员传达警报,控制电缆上的电压低于电压阈值或其任何组合。