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基于粒子群优化的非线性系统最小二乘支持向量机预测控制方法
引用本文:穆朝絮,张瑞民,孙长银.基于粒子群优化的非线性系统最小二乘支持向量机预测控制方法[J].控制理论与应用,2010,27(2):164-168.
作者姓名:穆朝絮  张瑞民  孙长银
作者单位:东南大学自动化学院,江苏,南京,210096
基金项目:国家自然科学基金资助项目(60874013); 教育部新世纪优秀人才支持计划资助项目(NCET–08–0106); 教育部博士点基金资助项目(200802860039).
摘    要:对于非线性系统预测控制问题, 本文提出了一种基于模型学习和粒子群优化(PSO)的单步预测控制算法.该方法使用最小二乘支持向量机(LS-SVM)建立非线性系统模型并预测系统的输出值, 通过输出反馈和偏差校正减少预测误差, 由PSO滚动优化获得非线性系统的控制量. 该方法能在非线性系统数学模型未知的情况下设计出有效的预测控制器. 通过对单变量多变量非线性系统进行仿真, 证明了该预测控制方法是有效的, 且具有良好的自适应能力和鲁棒性.

关 键 词:非线性系统    预测控制    最小二乘支持向量机    粒子群
收稿时间:2009/6/30 0:00:00
修稿时间:2009/9/20 0:00:00

LS-SVM predictive control based on PSO for nonlinear systems
MU Chao-xu,ZHANG Rui-min and SUN Chang-yin.LS-SVM predictive control based on PSO for nonlinear systems[J].Control Theory & Applications,2010,27(2):164-168.
Authors:MU Chao-xu  ZHANG Rui-min and SUN Chang-yin
Affiliation:School of Automation, Southeast University,School of Automation, Southeast University,School of Automation, Southeast University
Abstract:For the predictive control of nonlinear systems, we present a single-step predictive control algorithm based on model learning and particle swarm optimization(PSO). The method utilizes least square support vector machine(LSSVM) to estimate the model of a nonlinear system and forecast the output value, reducing the error in output feedback and error correction. The control values are obtained by the rolling optimization of PSO. This method can be used to design effective controllers for nonlinear systems with unknown mathematical models. For univariate and multivariate nonlinear systems, simulation results show that the predictive control algorithm is effective and has an excellent adaptive ability and robustness.
Keywords:nonlinear systems  predictive control  least square support vector machine  particle swarm optimization
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