Method for operating a gas turbine
    3.
    发明公开
    Method for operating a gas turbine 审中-公开
    用于运行燃气轮机的方法

    公开(公告)号:EP3067530A1

    公开(公告)日:2016-09-14

    申请号:EP15158141.0

    申请日:2015-03-09

    IPC分类号: F02C7/042 F02C9/20 F01D17/04

    摘要: The gas turbine (1) has a compressor (2) with variable inlet guide vanes (6). The gas turbine output power is controlled at least by controlling the variable inlet guide vanes opening. The variable inlet guide vanes opening is controlled between a maximum opening and a minimum opening. A function (F) indicative of the mechanical stress undergone by compressor blades downstream of the variable inlet guide vanes (6) has an increasing line trend (T) from the maximum opening to the minimum opening of the variable inlet guide vanes (6). The function (F) has operating windows (OW1, OW2, OW3) in which the function (F) is smaller than a stress limit (L) and at least one intermediate window (IW1, IW2) between two operating windows (OW1, OW2, OW3), in the intermediate window (IW1, IW2) the function (F) being greater than the stress limit (L). Regulation of the variable inlet guide vanes (6) in the operating windows (OW1, OW2, OW3) is done by opening or closing the variable inlet guide vanes (6) with a given velocity when moving from one operating window (OW1, OW2, OW3) to another operating window (OW1, OW2, OW3) passing through an intermediate window (IW1, IW2).

    摘要翻译: 燃气轮机(1)具有带可变入口导向叶片(6)的压缩机(2)。 燃气轮机的输出功率至少通过控制可变入口导向叶片的开度来控制。 可变入口导向叶片开口被控制在最大开口和最小开口之间。 指示可变入口导向叶片(6)下游的压缩机叶片经受的机械应力的函数(F)具有从可变入口导向叶片(6)的最大开度到最小开度的递增趋势线(T)。 函数(F)具有函数(F)小于应力极限(L)的操作窗口(OW1,OW2,OW3)和两个操作窗口(OW1,OW2)之间的至少一个中间窗口(IW1,IW2) ,OW3),在中间窗口(IW1,IW2)中,函数(F)大于应力极限(L)。 当从一个操作窗口(OW1,OW2,OW3)移动时,通过以给定速度打开或关闭可变入口导向叶片(6)来完成操作窗口(OW1,OW2,OW3)中的可变入口导向叶片(6) OW3)移动到经过中间窗口(IW1,IW2)的另一个操作窗口(OW1,OW2,OW3)。