The structure of PCA model is built and verified when Q statistics and T2 statistics are used to analyze whether the process variable is satisfied for the requirement of stable running.

• 该结构采用对主元模型的建立与检验、利用Q统计量,T2统计量分析确定过程变量是否满足要求,建立统计量监视图的组态等功能,最终判断出系统是否在稳定运行状态。