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    WIND TURBINE POWER GENRATION COMPRISING AN AC-DC-AC CONVERTER AND A TRANSFORMER WITH A TAP CHANGER
    2.
    发明申请
    WIND TURBINE POWER GENRATION COMPRISING AN AC-DC-AC CONVERTER AND A TRANSFORMER WITH A TAP CHANGER 审中-公开

    公开(公告)号：WO2021148094A1

    公开(公告)日：2021-07-29

    申请号：PCT/DK2021/050014

    申请日：2021-01-19

    Applicant: VESTAS WIND SYSTEMS A/S

    Inventor： BIRIS, Ciprian ,  SUN, Bo

    IPC: H02J3/00 ,  H02J3/38 ,  H02J2300/28 ,  H02J3/001 ,  H02J3/00125 ,  H02J3/381

    Abstract: A method of operating a power generating system for a wind turbine connected to an electrical grid, the power generating system comprising a power generator, a converter, a transformer and a tap changer, the method comprising; monitoring a signal for detecting 5 an over-voltage condition in the electrical grid which requires a reduction in the output voltage from the power generating system; initiating a convertor response mode configured to provide at least part of the required voltage reduction; and initiating a transformer response mode configured to provide at least part of the required voltage reduction; wherein the transformer response mode comprises operating the tap changer 10 to adjust the output voltage from the power generating system.

    METHOD OF CONTROLLING A WIND TURBINE
    4.
    发明公开
    METHOD OF CONTROLLING A WIND TURBINE 审中-公开

    公开(公告)号：EP3866293A3

    公开(公告)日：2021-12-01

    申请号：EP21152211.5

    申请日：2021-01-19

    Applicant: VESTAS WIND SYSTEMS A/S

    Inventor： BIRIS, Ciprian ,  SUN, Bo ,  KJÆR, Philip Carne

    IPC: H02J3/18 ,  F03D7/04 ,  F03D7/02 ,  H02J3/00 ,  H02J3/16 ,  H02J3/38 ,  H02J3/46

    Abstract: A method (60) of operating a power generating system for a wind turbine connected to an electrical grid, the power generating system comprising a power generator, a converter, a transformer and a tap changer, the method comprising; monitoring a signal for detecting a voltage in the electrical grid which requires an increase in output voltage from the power generating system; determining a partial-load condition of the converter, which corresponds to the converter being configured to output a voltage which is substantially below its maximum output voltage; and upon determining the partial-load condition, operating the tap changer to tap down the transformer, and operating the converter to provide the required increase in output voltage from the power generating system.

    METHOD OF CONTROLLING A WIND TURBINE
    5.
    发明公开
    METHOD OF CONTROLLING A WIND TURBINE 审中-公开

    公开(公告)号：EP3866293A2

    公开(公告)日：2021-08-18

    申请号：EP21152211.5

    申请日：2021-01-19

    Applicant: VESTAS WIND SYSTEMS A/S

    Inventor： BIRIS, Ciprian ,  SUN, Bo ,  KJÆR, Philip Carne

    IPC: H02J3/18 ,  F03D7/04 ,  F03D7/02 ,  H02J3/00 ,  H02J3/16 ,  H02J3/38 ,  H02J3/46

    Abstract: A method (60) of operating a power generating system for a wind turbine connected to an electrical grid, the power generating system comprising a power generator, a converter, a transformer and a tap changer, the method comprising; monitoring a signal for detecting a voltage in the electrical grid which requires an increase in output voltage from the power generating system; determining a partial-load condition of the converter, which corresponds to the converter being configured to output a voltage which is substantially below its maximum output voltage; and upon determining the partial-load condition, operating the tap changer to tap down the transformer, and operating the converter to provide the required increase in output voltage from the power generating system.

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