发明名称 Method for setting an output voltage level of a wind power plant
摘要 The present invention addresses the problem of avoiding that wind turbine voltage levels within a wind power plant do not exceed predetermined overvoltage and/or undervoltage protection levels. In particular, the present invention relates to shifting of an output voltage level of a wind power plant in order to protect an internal power plant grid against overvoltages.
申请公布号 US9030043(B2) 申请公布日期 2015.05.12
申请号 US201012934936 申请日期 2010.01.29
申请人 Vestas Wind Systems A/S 发明人 Garcia Jorge Martinez
分类号 H02J1/00;F03D9/00 主分类号 H02J1/00
代理机构 Patterson + Sheridan LLP 代理人 Patterson + Sheridan LLP
主权项 1. A method for setting an output voltage level of a wind power plant comprising a plurality of wind turbines operatively connected to a plant power grid, each wind turbine configured to generate a respective wind turbine voltage level to compensate for grid impedances, the method comprising: as between at least two of the plurality of wind turbines, determining a largest generated wind turbine voltage level, wherein determining the largest generated wind turbine voltage level comprises determining the wind turbine voltage level of each of the plurality of wind turbines; and based on a value of the largest generated wind turbine voltage level, setting the output voltage level of the wind power plant, wherein the output voltage level of the wind power plant is set to differ from the voltage level at a point of common coupling by an amount approximately half of the difference between the largest generated wind turbine voltage level and the voltage level at the point of common coupling, and wherein the output voltage level of the wind power plant is set to be less than the voltage level at the point of common coupling.
地址 Aarhus N DK