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用于过程优化的改进模式识别方法及其应用*

, PP. 342-348

Keywords: 模式识别,过程优化,氨合成塔,氨净值

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Abstract:

为克服模式识别优化方法在过程优化中应用的困难,根据特征权重与梯度思想,有针对性地提出样本权重和类间斜率概念,改进模式识别优化方法.对非线性、多变量、强耦合系统的仿真结果和与自适应优化的对比证明:改进后的方法在优化效果上有较大改善.在一套年产8万吨的氨合成塔上对氨净值实施在线优化,改善了氨合成塔的操作条件,氨净值提高0.38%,取得明显的经济效益.

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