NLMS在汽轮机转子不对中故障诊断中的研究和应用

The Study and Application of the Turbines Rotor Misalignment Diagnose Based on NLMS

自适应滤波算法的研究是当今自适应信号处理中最为活跃的研究课题之一,为了最大限度地克服汽轮机转子不对中故障检测中工业噪声所带来的不利因素,采用NLMS的消除噪声方法去除汽轮机轴振动信号中的工业噪声和正常的转轴噪声,仅保存故障的线谱分析信号,设计了NLMS的谱线增强算法增强信号的谱线,使故障信号更利于故障诊断分析。

The adaptive filtering algorithm is one of the most active subjects in the adaptive signal processing field.To overcome the disadvantage of the industrial noise for the failure detection of the turbine rotor misalignment,this paper concerns about the method of noise elimination from the industrial noise and normal rotor noise based on NLMS and design the algorithm based on NLMS to help further analysis diagnose.