发明公开
EP2284390A1 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
- 专利标题： Hydraulic station and method for controlling pressure in a hydraulic system of a wind turbine
- 专利标题（中）： Hydraulikstation und Verfahren zur Druckregelung im Hydrauliksystem einer Windturbine
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申请号： EP10168884.4申请日： 2010-07-08
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公开(公告)号： EP2284390A1公开(公告)日： 2011-02-16
- 发明人: ROED, Carsten
- 申请人： Vestas Wind Systems A/S
- 申请人地址： Alsvej 21 8940 Randers - SV DK
- 专利权人： Vestas Wind Systems A/S
- 当前专利权人： Vestas Wind Systems A/S
- 当前专利权人地址： Alsvej 21 8940 Randers - SV DK
- 代理机构： Simonsen, Jan Lyngberg
- 优先权： DK200970058 20090710
- 主分类号： F03D7/02
- IPC分类号： F03D7/02
摘要：
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.
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