The utility model relates to a chemical process data correction method based on bilinear model, belonging to the chemical industry process control technology field. According to the balance equation of the complex chemical system satisfying the material balance and the topological structure of the process, the total flow rate and the component content measurement data of a chemical process device or some devices are calculated. According to the above basic relation, the topological structure of the device and the measurement data sheet provided, a data correction model of the chemical process equipment logistics is established. According to the equilibrium of the total flow rate and the component content of the bilinear equilibrium in the material balance equation, the correction work can be realized by two steps of stratification, and the bilinear problem is decomposed into two linear constraints, and the solution becomes simple. The present invention ensures no significant error estimation bias, variable correction value is deleted, a small amount of computation, avoids computing the projection matrix by adding a constraint on the process of measuring variables, to avoid the misidentification of gross errors.
【技术实现步骤摘要】
【技术保护点】
一种基于双线性模型的化工过程数据校正方法，其特征在于，在数据校正方法的基础上，将三线性约束方程转化为双线性约束方程的方法、将双线性约束问题分解成两个线性问题求解，在求解双线性数据校正，采用两步法分别对总流率数据、组分含量进行校正，在对化工工业过程装置的物流数据校正模型建立中，根据化工设备混合器、分流器、分离器和反应器四大类的基本关系、该装置的拓扑结构和提供的测量数据表，建立其数据校正模型；用户根据通过从大量的序列实时数据经滤波、去噪、估计测量值的方差值，估算最佳校正数据，使校正值更加接近真实值；或者用户通过提高生产线的工艺流程，对流程的结构、平衡的建立、约束方程的型式、校正的范围和深度等等方面的权衡把握，获得要求的数据校正效果。
【技术特征摘要】
【专利技术属性】
技术研发人员：胡明慧，王永山，黎华，高倩，邵惠鹤，潘兆龙，吴胜茜，
申请(专利权)人：上海交通大学，
类型：发明
国别省市：31[中国|上海]
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