Linear electric machine and a power electronic converter for controlling the linear electric machine

    公开(公告)号:US11183916B2

    公开(公告)日:2021-11-23

    申请号:US16334903

    申请日:2017-10-25

    Inventor: Kimmo Rauma

    Abstract: A linear electric machine comprises a primary part (101) and a secondary part (102) linearly movable with respect to each other. The primary part comprises primary sections (103, 104) each having an airgap surface. The secondary part comprises secondary sections (105, 106) each having an airgap surface facing towards the air-gap surface of the respective primary section. Each primary section comprises force-generating windings (U1, V1, W1, U2, V2, W2) for generating a magnetic thrust force and a transversal magnetic force pulling the primary section towards the respective secondary section. The resultant of the transversal magnetic forces is controllable to levitate the primary part. The primary part further comprises one or more tilt-control windings (T1, T2) for controlling tilting of the primary part with respect to the secondary part.

    Vessel with electric power connectors

    公开(公告)号:US11273721B2

    公开(公告)日:2022-03-15

    申请号:US16502397

    申请日:2019-07-03

    Abstract: A vessel includes electric connectors for receiving one or more direct voltages from a shore-side electric power system. The vessel includes a transmitter for transmitting, to the shore-side electric power system, a control signal enabling the shore-side electric power system to control the one or more direct voltages to be suitable for the vessel. Alternatively, the vessel includes one or more controllable direct voltage converters and a control system for controlling the one or more controllable direct voltage converters to convert the one or more direct voltages into one or more direct voltages suitable for the vessel. The vessel can be for example a ship, a boat, or a ferry.

    A LINEAR ELECTRIC MACHINE AND A POWER ELECTRONIC CONVERTER FOR CONTROLLING THE LINEAR ELECTRIC MACHINE

    公开(公告)号:US20190214896A1

    公开(公告)日:2019-07-11

    申请号:US16334903

    申请日:2017-10-25

    Inventor: Kimmo Rauma

    CPC classification number: H02K41/02 H02K3/04 H02K11/33 H02K41/03 H02K2201/03

    Abstract: A linear electric machine comprises a primary part (101) and a secondary part (102) linearly movable with respect to each other. The primary part comprises primary sections (103, 104) each having an airgap surface. The secondary part comprises secondary sections (105, 106) each having an airgap surface facing towards the air-gap surface of the respective primary section. Each primary section comprises force-generating windings (U1, V1, W1, U2, V2, W2) for generating a magnetic thrust force and a transversal magnetic force pulling the primary section towards the respective secondary section. The resultant of the transversal magnetic forces is controllable to levitate the primary part. The primary part further comprises one or more tilt-control windings (T1, T2) for controlling tilting of the primary part with respect to the secondary part.

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