Model-free control method and its application for large time-delay systems

被引：0
作者：
Dong N. [1 ]
Chang J. [1 ]
Han X. [1 ]
Wu A. [1 ]
机构：
[1] School of Electrical and Information Engineering, Tianjin University, Tianjin
来源：
Dong, Na (dongna@tju.edu.cn) | 1987年 / Editorial Board of Journal of Harbin Engineering卷 / 39期
关键词：
Compression refrigeration system; Dynamic response; Lag time constant; Large time delay; Model-free control; Nonlinear;
D O I：
10.11990/jheu.201707002
中图分类号：
学科分类号：
摘要：
To address the large time delay characteristics of a system in actual application, a model-free adaptive control method with input rate constraint of time delay was designed to alleviate the impact of large time delay on the entire control process. A typical system with large time delay was simulated and compared. Then, the model-free control scheme was designed for a compressed refrigeration system to control the characteristics of its nonlinearity, large time delay, strong coupling, and difficulty in establishing accurate mathematical control model. Then, the control scheme was simulated and compared. The simulation results show that the new model-free adaptive control algorithm has excellent control performance and faster response speed, which improves the performance of the refrigeration system; thus, the effectiveness of this novel control method is validated. © 2018, Editorial Department of Journal of HEU. All right reserved.
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页码：1987 / 1993
页数：6
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