Analysis and design of a double two-degree-of-freedom control scheme

被引:41
作者
Tan, Wen [1 ]
机构
[1] N China Elect Power Univ, Sch Control & Comp Engn, Beijing 102206, Peoples R China
关键词
Double TDF scheme; Modified IMC; Processes with time delay; Robustness; TDF-IMC design; MODIFIED SMITH PREDICTOR; UNSTABLE PROCESSES; INTEGRATOR; PARAMETERS; SYSTEMS;
D O I
10.1016/j.isatra.2010.03.004
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Robust analysis and design for a double two-degree-of-freedom (TDF) scheme are discussed in the paper. It is shown that the double TDF scheme is a TDF version of the internal model control (IMC) structure for integrating and unstable processes and retains the property of the IMC structure for stable processes. A robustness measure is proposed assuming that the controlled process has a general uncertainty description. The measure is convenient for comparing the robustness of different control systems and can be used as a guideline for robust tuning. Finally, a TDF-IMC method is proposed to design and tune the parameters of the double TDF scheme to achieve improved robust performance. (C) 2010, ISA. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:311 / 317
页数:7
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