基于PCA的冷水机组传感器测量故障数据修复

Fault Diagnosis of Chronograph Based on PCA

传感器测量数据的真实性,为冷水机组的安全运行和优化节能的提供了必要条件,但也经常发生传感器的测量故障。采用主元分析(Principal Component Analysis,PCA)方法,利用Q统计量进行传感器故障检测、诊断与数据修复研究,并以实际工程的冷水机组运行数据进行修复数据精度验证,结果良好。

The authenticity of the measured data of the sensor provides the necessary conditions for the safe operation of the chiller and the optimization of the energy saving,but the measurement of the sensor is also frequent.The main component analysis （PCA） method is used to analyze the sensor fault detection,diagnosis and data restoration with Q statistic, and the data of the chilled water unit is used to verify the accuracy of the data.