Dielectric fluids for linear switched capacitive devices

    公开(公告)号:US09806639B2

    公开(公告)日:2017-10-31

    申请号:US14699775

    申请日:2015-04-29

    CPC classification number: H02N1/002 H01B3/24

    Abstract: A dielectric fluid includes a first liquid having first dielectric constant and conductivity values. The dielectric fluid also includes a second liquid having second dielectric constant and conductivity values. The first dielectric constant value is greater than the second dielectric constant value and the second electrical conductivity value is less than the first electrical conductivity value. The first and second liquids form an immiscible mixture that has third dielectric constant and conductivity values between the first and second dielectric constant values and the first and second electrical conductivity values, respectively. The first liquid forms a high conductivity phase representative of the first conductivity value, and the second liquid forms a low conductivity phase representative of the second conductivity value. The low conductivity phase is continuous the high conductivity phase is a plurality of droplets non-homogeneously dispersed within, and separated by, the continuous low conductivity phase.

    CONTROLLER FOR MOTOR
    23.
    发明申请
    CONTROLLER FOR MOTOR 有权
    电机控制器

    公开(公告)号:US20160276970A1

    公开(公告)日:2016-09-22

    申请号:US14663691

    申请日:2015-03-20

    Abstract: A controller is provided which can interface with a variable frequency drive and a motor, the controller having (a) one or more voltage and current sensors which can interface with a power line linking the variable frequency drive and the motor; and (b) a signal interface module which can receive electrical signals associated with an operating condition of the motor from the one or more voltage and current sensors. The signal interface module can correlate the received electrical signals with a rotor position of the motor, and transmit signals corresponding to rotor position, to the variable frequency drive. The data provided by the controller if conveyed as a rotor position, may cause the variable frequency drive to change one or more of its operating parameters to maintain proper synchronization of the rotor and its associated stator currents. Alternatively, the controller may directly control variable frequency drive operating parameters.

    Abstract translation: 提供一种可与变频驱动器和电动机接口的控制器,所述控制器具有(a)一个或多个电压和电流传感器,其可与连接变频驱动器和电动机的电力线接口; 和(b)信号接口模块,其可以从一个或多个电压和电流传感器接收与电动机的工作状态相关联的电信号。 信号接口模块可以将接收到的电信号与电机的转子位置相关联,并将与转子位置相对应的信号传输到变频驱动器。 由控制器提供的数据作为转子位置传送可能导致变频驱动器改变其一个或多个操作参数,以保持转子及其相关定子电流的适当同步。 或者,控制器可以直接控制变频驱动器操作参数。

    System for controlling phase shifting of superconducting electric machines

    公开(公告)号:US11437808B2

    公开(公告)日:2022-09-06

    申请号:US16589272

    申请日:2019-10-01

    Abstract: A wind turbine includes a superconducting generator having an armature and a superconducting field winding set. The armature includes at least one multiphase armature winding set having a plurality of armature windings. The superconducting field winding set is separated by a gap from the armature. The superconducting field winding set includes a plurality of field windings, wherein one of the armature winding set and superconducting field winding set is connectable to rotate with a rotating component of the wind turbine and another of the armature and the superconducting field winding set being non-rotating. The wind turbine also includes a controllable power converter coupled to the at least one multiphase armature winding set and a controller configured to control switching operations of the controllable power converter to effect a phase shift among the plurality of armature windings.

    CONFORMAL HEAT PIPE ASSEMBLIES
    25.
    发明申请

    公开(公告)号:US20210378154A1

    公开(公告)日:2021-12-02

    申请号:US17399371

    申请日:2021-08-11

    Abstract: A heat pipe assembly includes walls having porous wick linings, an insulating layer coupled with at least one of the walls, and an interior chamber sealed by the walls. The linings hold a liquid phase of a working fluid in the interior chamber. The insulating layer is directly against a conductive component of an electromagnetic power conversion device such that heat from the conductive component vaporizes the working fluid in the porous wick lining of the at least one wall and the working fluid condenses at or within the porous wick lining of at least one other wall to cool the conductive component of the electromagnetic power conversion device. The assembly can be placed in direct contact with the device while the device is operating and/or experiencing time-varying magnetic fields that cause the device to operate.

    Electric motor having conformal heat pipe assemblies

    公开(公告)号:US11043876B2

    公开(公告)日:2021-06-22

    申请号:US16727699

    申请日:2019-12-26

    Abstract: A heat pipe assembly includes walls having porous wick linings, an insulating layer coupled with at least one of the walls, and an interior chamber sealed by the walls. The linings hold a liquid phase of a working fluid in the interior chamber. The insulating layer is directly against a conductive component of an electromagnetic power conversion device such that heat from the conductive component vaporizes the working fluid in the porous wick lining of the at least one wall and the working fluid condenses at or within the porous wick lining of at least one other wall to cool the conductive component of the electromagnetic power conversion device. The assembly can be placed in direct contact with the device while the device is operating and/or experiencing time-varying magnetic fields that cause the device to operate.

    Electric Motor Having Conformal Heat Pipe Assemblies

    公开(公告)号:US20200336045A1

    公开(公告)日:2020-10-22

    申请号:US16727699

    申请日:2019-12-26

    Abstract: A heat pipe assembly includes walls having porous wick linings, an insulating layer coupled with at least one of the walls, and an interior chamber sealed by the walls. The linings hold a liquid phase of a working fluid in the interior chamber. The insulating layer is directly against a conductive component of an electromagnetic power conversion device such that heat from the conductive component vaporizes the working fluid in the porous wick lining of the at least one wall and the working fluid condenses at or within the porous wick lining of at least one other wall to cool the conductive component of the electromagnetic power conversion device. The assembly can be placed in direct contact with the device while the device is operating and/or experiencing time-varying magnetic fields that cause the device to operate.

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