支持矢量回归机的参数优化及在智能减压阀压力预测中的应用
发布时间:2018-04-11 13:42
本文选题:人工化学反应 + 支持矢量回归机 ; 参考:《中国机械工程》2016年14期
【摘要】:智能减压阀可通过控制膜片缸压力实现出口压力的智能调节。膜片缸压力是智能减压阀控制器的控制目标,因此需要依据进口压力和出口目标压力对膜片缸压力进行预测。基于此,提出了基于人工化学反应优化算法的支持向量回归机(ACROA-SVR)参数优化方法,并将ACROA-SVR应用于智能减压阀膜片缸压力预测,采用实验数据将ACROA-SVR与基于遗传算法的SVR和传统SVR进行了对比,分析结果表明了ACROA-SVR的有效性和优越性。
[Abstract]:The intelligent pressure reducing valve can realize the intelligent adjustment of the outlet pressure by controlling the pressure of the diaphragm cylinder.The pressure of diaphragm cylinder is the control target of intelligent valve controller, so it is necessary to predict the pressure of diaphragm cylinder based on inlet pressure and outlet pressure.Based on this, a parameter optimization method of support vector regression machine (SVM) based on artificial chemical reaction optimization algorithm is proposed, and ACROA-SVR is applied to predict the pressure of diaphragm cylinder of intelligent pressure reducing valve.The experimental data are used to compare ACROA-SVR with SVR based on genetic algorithm and traditional SVR. The results show the effectiveness and superiority of ACROA-SVR.
【作者单位】: 湖南大学;湖南省特大口径电站阀门工程技术研究中心;
【基金】:国家科技重点专项(2011ZX07412-001-02)
【分类号】:TH134
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本文编号:1736240
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