误差校正新方法在重整装置芳烃收率在线软测量中的应用

A New Method of Error Correction and Its Application in Online Soft Sensor of Aromatics Yield of Catalytic Reforming Unit

针对软测量建模中含有误差会极大影响模型精度问题,提出一种将数据误差校正、模型参数校正和模型结构校正技术相结合的软测量误差三重校正方法。该方法可以有效地处理测量数据的过失误差和随机误差,从而提高软测量精度,并且该方法直接面向数据,实现方便。应用该方法对某芳烃厂的连续重整装置的芳烃收率软测量进行误差校正,取得了很好的效果。

A new method called triple correction which combined data error correction,model parameter correction and model structure correction was proposed.The method can process the defect error and random error of measured data effectively,and improve the measuring accuracy.The method is very simple because it faces data directly,and it was used in a online soft sensor of aromatics yield of catalytic reforming unit.