中南大学学报（自然科学版）2018，Vol.49Issue(6)：1393-1402,10.DOI:10.11817/j.issn.1672-7207.2018.06.012
基于扰动观测器的制冷机组非奇异terminal滑模控制
Non-singular terminal sliding mode control based on disturbance observer in refrigeration system
摘要
Abstract
Considering the temperature control issue in refrigeration system, and based on the analysis of the mechanism of compression refrigeration system, a reasonable simplified model was proposed by improving zone lumped parameter method. Besides, mechanism modeling and experimental identification based on the experimental platform were combined together. The model was proved to be accurate through the simulation and experiment. A disturbance observer of evaporator was proposed, and then its error was proved to be bounded. The estimated value of disturbance and its derivative were used to design the sliding mode surface; the second-order sliding mode was combined with terminal sliding mode which was proved to be non-singular, and then the controlled variable was designed. The simulation results were compared with those of traditional method. The results show that the proposed method has better dynamic performance against disturbance and can eliminate chattering problem compared to traditional sliding mode control.关键词
制冷机组/扰动观测器/非奇异terminal滑模控制Key words
refrigeration system/disturbance observer/non-singular terminal sliding mode control分类
信息技术与安全科学引用本文复制引用
刘君健,吴爱国,董娜..基于扰动观测器的制冷机组非奇异terminal滑模控制[J].中南大学学报（自然科学版）,2018,49(6):1393-1402,10.基金项目
国家自然科学基金资助项目(61403274,51337007) （61403274,51337007）
天津市应用基础及前沿技术研究计划项目(13JCQNJC03600) (Projects(61403274, 51337007) supported by the National Natural Science Foundation of China （13JCQNJC03600）
Project(13JCQNJC03600) supported by the Application Base and Frontier Technology Research Program of Tianjin of China) （13JCQNJC03600）
