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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：Professor at the Institute of Advanced Measurement & Control Technology
其他任职：先进检测与控制技术研究所所长
性别：男
毕业院校：上海交通大学
学位：博士
所在单位：控制科学与工程学院
学科：控制理论与控制工程. 化学工程
办公地点：大连理工大学控制科学与工程学院先进检测与控制技术研究所
大连市凌工路2号大连理工大学海山楼A座724室
联系方式：Tel:(0411)84706465 实验室网站：http://act.dlut.edu.cn/
电子邮箱：tliu@dlut.edu.cn
Gradient-based step response identification of low-order model for time delay systems
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论文类型：会议论文
发表时间：2016-05-28
收录刊物：EI、CPCI-S、Scopus
页面范围：5814-5819
关键字：Step response identification; time delay; second-order model; gradient searching; convergence
摘要：In this paper, a step response identification method is proposed to obtain a low-order model for industrial processes with time delay. Based on a classification of the model pole distribution, the corresponding time domain expressions of the output response to a step change are derived and therefore, a gradient searching algorithm is developed to simultaneously identify the rational model parameters together with the delay parameter. The computation effort can be significantly reduced compared to the existing time domain multiple-integral methods for model fitting. The convergence of the proposed algorithm is analyzed with a strict proof. Two illustrative examples from the literature are shown to demonstrate the effectiveness of the proposed method.