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    IMPROVEMENTS RELATING TO WIND TURBINE BLADE ANTI-ICE SYSTEMS
    1.
    发明申请
    IMPROVEMENTS RELATING TO WIND TURBINE BLADE ANTI-ICE SYSTEMS 审中-公开

    公开(公告)号：WO2020125894A1

    公开(公告)日：2020-06-25

    申请号：PCT/DK2019/050397

    申请日：2019-12-17

    Applicant: VESTAS WIND SYSTEMS A/S

    Inventor： ROED, Carsten ,  SLEJ, Jan

    IPC: F03D80/40

    Abstract: A wind turbine comprising a plurality of wind turbine blades, a blade anti-ice system including a blade heating arrangement associated, wherein the anti-ice system includes a 5 control system and a power supply configured to provide power to the blade heating arrangement, characterised in that the power supply comprises a power converter. A benefit of using a power converter to supply electrical power to the heating devices is that power can be applied in a stepless manner. A much finer degree of control is therefore achieved over the thermal energy applied to the blade since the power can be ramped up 10 gradually as the system controller determines that the icing conditions are becoming more severe. As a result of the use of the power converter, the magnitude of thermal energy that is applied to the blade can be increased gradually and smoothly. [Figure 3] 15

    Hydraulic station and method for controlling pressure in a hydraulic system of a wind turbine
    3.
    发明授权
    Hydraulic station and method for controlling pressure in a hydraulic system of a wind turbine 有权
    液压站和方法，用于在风力涡轮机的液压系统的压力调节

    公开(公告)号：EP2284390B1

    公开(公告)日：2012-02-08

    申请号：EP10168884.4

    申请日：2010-07-08

    Applicant: Vestas Wind Systems A/S

    Inventor： ROED, Carsten

    IPC: F03D7/02 ,  F03D11/00

    CPC classification number: F03D7/0244 ,  F03D7/0224 ,  F03D80/00 ,  F05B2260/76 ,  F05B2260/904 ,  Y02E10/723 ,  Y10T137/0396 ,  Y10T137/7761

    Abstract: A hydraulic station in a hydraulic system of a wind turbine includes a tank for storing working fluid, first and second pumps fluidly connected to the tank, first and second flow paths extending from the respective first and second pumps to a hydraulic circuit, and first and second relief valves in fluid communication with the respective first and second flow paths. The first pump and first relief valve are controlled based on maintaining pressure of the working fluid in the hydraulic circuit between a first minimum limit and first maximum limit. If the pressure falls below the first minimum limit, the second pump and second relief valve are controlled in addition to the first pump and first relief valve, with the control then based on a second maximum limit and second minimum limit.

    Hydraulic station and method for controlling pressure in a hydraulic system of a wind turbine
    4.
    发明公开
    Hydraulic station and method for controlling pressure in a hydraulic system of a wind turbine 有权
    Hydraulikstation und Verfahren zur Druckregelung im Hydrauliksystem einer Windturbine

    公开(公告)号：EP2284390A1

    公开(公告)日：2011-02-16

    申请号：EP10168884.4

    申请日：2010-07-08

    Applicant: Vestas Wind Systems A/S

    Inventor： ROED, Carsten

    IPC: F03D7/02

    CPC classification number: F03D7/0244 ,  F03D7/0224 ,  F03D80/00 ,  F05B2260/76 ,  F05B2260/904 ,  Y02E10/723 ,  Y10T137/0396 ,  Y10T137/7761

    Abstract: A hydraulic station in a hydraulic system of a wind turbine includes a tank for storing working fluid, first and second pumps fluidly connected to the tank, first and second flow paths extending from the respective first and second pumps to a hydraulic circuit, and first and second relief valves in fluid communication with the respective first and second flow paths. The first pump and first relief valve are controlled based on maintaining pressure of the working fluid in the hydraulic circuit between a first minimum limit and first maximum limit. If the pressure falls below the first minimum limit, the second pump and second relief valve are controlled in addition to the first pump and first relief valve, with the control then based on a second maximum limit and second minimum limit.

    Abstract translation: 在风力涡轮机的液压系统中的液压站包括用于存储工作流体的箱，流体连接到箱的第一和第二泵，从相应的第一和第二泵延伸到液压回路的第一和第二流路，以及第一和第 第二安全阀与相应的第一和第二流动路径流体连通。 基于将液压回路中的工作流体的压力保持在第一最小极限和第一最大极限之间来控制第一泵和第一泄压阀。 如果压力低于第一最小限度，除了第一泵和第一安全阀之外还控制第二泵和第二安全阀，然后控制基于第二最大限制和第二最小限度。

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