风电机组齿轮箱温度趋势状态监测及分析方法(8)

136 中 国 电 机 工 程 学 报 第31卷

性发生改变。本文提出齿轮箱故障时温度残差分布变化的3种形式，采用滑动窗口连续实时地计算残差均值和标准差的变化趋势，并和设定阈值比较，得出齿轮箱当前的运行状态。通过对某机组齿轮箱温度SCADA数据及人为模拟的齿轮箱故障的分析，新方法能够及时检测出齿轮箱工作状态的异常变化，验证了新方法的有效性。

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收稿日期：2011-04-12。 作者简介：

郭鹏(1975)，男，博士，副教授，研究方向为大型风电机组控制技术与状态监测，现在英国斯特莱斯克莱德大学作访问学者，huadiangp@。

郭鹏

(责任编辑 张媛媛)

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