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    Electrical machine rotors
    1.
    发明授权
    Electrical machine rotors 有权

    公开(公告)号：US10594190B2

    公开(公告)日：2020-03-17

    申请号：US16030173

    申请日：2018-07-09

    Applicant: ABB Research, Ltd.

    Inventor： Darren D. Tremelling ,  Yujing Liu

    IPC: H02K9/00 ,  H02K9/19 ,  H02K1/32 ,  H02K1/27 ,  H02K7/09 ,  H02K15/03

    Abstract: Rotors for electrical machines and methods of fabricating the same are disclosed. Electrical machine rotors may include a hollow non-magnetic shaft, an active region, and a plurality of coolant passages extending within the active region. The hollow non-magnetic shaft may extend along an axis and have an exterior surface that defines a shaft space extending along the axis. At least a portion of the active region may be disposed within the shaft space.

    Method and system for fluid flow control in a fluid network system
    6.
    发明授权
    Method and system for fluid flow control in a fluid network system 有权

    公开(公告)号：US09995306B2

    公开(公告)日：2018-06-12

    申请号：US14653176

    申请日：2013-12-11

    Applicant: ABB Research Ltd.

    Inventor： Michael Lundh ,  Jan Nyqvist

    IPC: F04D27/00 ,  G05B15/02 ,  G05D7/06 ,  E21F1/02

    CPC classification number: F04D27/00 ,  E21F1/02 ,  G05B15/02 ,  G05D7/0682

    Abstract: A method of controlling fluid flow in a fluid network system by fluid machines includes obtaining a respective current flow rate associated with each fluid machine, obtaining a current fluid machine speed of each fluid machine, obtaining desired flow rates in the system, and determining a new fluid machine speed for each fluid machine based on the current fluid machine speed and a change in the fluid machine speed required to obtain the desired flow rates. The change in fluid machine speed is determined by minimizing a total fluid machine power which is a function dependent of the change in the fluid machine speed, the minimization being performed with constraints for flow rate, fluid machine pressure and fluid machine speed. The method include controlling the speed of the fluid machines according to the new fluid machine speeds such that the minimum total fluid machine power in the system is attained.

    Visualization of three-dimensional power distribution data
    9.
    发明授权
    Visualization of three-dimensional power distribution data 有权

    公开(公告)号：US09842426B2

    公开(公告)日：2017-12-12

    申请号：US14670927

    申请日：2015-03-27

    Applicant: ABB RESEARCH LTD

    Inventor： Martin Naef ,  Mats Larsson

    IPC: G06T15/08 ,  G06T11/20

    CPC classification number: G06T15/08 ,  G06T11/20 ,  G06T2200/04 ,  G06T2219/2004

    Abstract: Exemplary methods and systems visualize or contour a power distribution system state by displaying to an operator output data values interpolated at output data locations from input data including distributed input data sensor locations in three dimensions and corresponding dynamically updated input data values. The method includes defining triangles in the volume, and determining, for each triangle, closest input data locations according to a closeness criteria. The method also includes projecting each triangle onto a visualization plane, and determining, for an output data location on the visualization plane at least one triangle, the projection of which includes the output data location. The method interpolates, for the output data location, the input data values of the closest input data locations of each of the at least one determined triangle to generate an output data value corresponding to the output data location.

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