Design of temperature controller based on PSO and LSSVM

doi:10.3778/j.issn.1002-8331.2009.27.024

Computer Engineering and Applications ›› 2009, Vol. 45 ›› Issue (27): 75-77.DOI: 10.3778/j.issn.1002-8331.2009.27.024

• 研发、设计、测试 • Previous Articles Next Articles

Design of temperature controller based on PSO and LSSVM

DU Zhi-yong¹，WANG Xian-fang^2，3

1.Henan Mechanical and Electrical Engineering College，Xinxiang，Henan 453002，China
2.Department of Information Engineering，Henan Institute of Science and Technology，Xinxiang，Henan 453003，China
3.School of Communication and Control Engineering，Jiangnan University，Wuxi，Jiangsu 214122，China

Received:2008-08-12 Revised:2008-10-30 Online:2009-09-21 Published:2009-09-21
Contact: DU Zhi-yong

基于PSO和LSSVM温度控制器的设计

杜志勇¹，王鲜芳^2，3

1.河南机电高等专科学校，河南新乡 453002
2.河南科技学院信息工程系，河南新乡 453003
3.江南大学通信与控制工程学院自动化研究所，江苏无锡 214122

通讯作者: 杜志勇

Abstract

Abstract: A temperature controller is designed by utilizing the globe search of Particle Swarm Optimization（PSO） and the high generalized performance and fast computation speed of the Least Squares Support Vector Machines（LS-SVM）.The model of the system is obtained by LS-SVM to train a sequence data of input and output，and then the whole rolling optimization procedure is finished by Particle Swarm Optimization（PSO）.This method can overcome some shortcomings in PID controlling，such as no high control precision，bad anti-interference and worse real-time performance.It is proved that the method is efficient through the practical application for temperature controlling of continuous stirred-tank reactor.

Key words: nonlinear modeling, least squares support vector machines, particle swarm optimization, temperature controller

摘要： 利用离子群优化（PSO）算法的全局搜索功能和最小二乘支持向量机（LSSVM）泛化能力强、运算速度快的特点，设计了一种温度控制器。通过LSSVM 对输入输出数据的训练学习，建立其预测模型；然后运用粒子群算法完成控制过程的滚动优化。该方法克服了PID控制中存在的控制精度不高、抗干扰能力差以及实时性不好的缺点。通过对连续槽式搅拌反应器（CSTR）温度控制的实际应用，证明了该方法的有效性。

关键词: 非线性建模, 最小二乘支持向量机, 粒子群优化, 温度控制

CLC Number:

TP273

DU Zhi-yong¹，WANG Xian-fang^2，3. Design of temperature controller based on PSO and LSSVM[J]. Computer Engineering and Applications, 2009, 45(27): 75-77.

杜志勇¹，王鲜芳^2，3. 基于PSO和LSSVM温度控制器的设计[J]. 计算机工程与应用, 2009, 45(27): 75-77.

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Design of temperature controller based on PSO and LSSVM

基于PSO和LSSVM温度控制器的设计

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