Study on design method and control strategy of differential temperature control system for precision machine tools
ZHENG Ying-jie1,2, NIU Xing-hua1,2, GAO Wei-guo3, ZHANG Da-wei3, LIU Teng4
1. School of Mechanical Engineering, Tianjin Key Laboratory of the Design and Intelligent Control of the Advanced Mechatronical System, Tianjin University of Technology, Tianjin 300384, China;
2. National Experimental Teaching Demonstration Center for Mechanical and Electrical Engineering, Tianjin University of Technology, Tianjin 300384, China;
3. School of Mechanical Engineering, Key Laboratory of Mechanism Theory and Equipment Design of Ministry of Education, Tianjin University, Tianjin 300354, China;
4. School of Mechanical Engineering, Hebei University of Technology, Tianjin 300130, China
In order to satisfy dynamic and differentiated control requirements of temperature control system for precision machine tools related parts in the condition of changing running performance and fluctuating ambient temperature, the design methods and control strategy of differentiated temperature control system for precision machine tools were provided. Firstly, the method of selecting and designing the key parts of the system and computational method of main parameters of temperature control capability were given. Secondly, dynamic on-time matching strategies for high and low temperature oil tank temperature control were proposed, according to the differences between the target temperature and measured temperature of high temperature oil tank and low temperature oil tank independently. Besides, design module for selection and computing of differentiated temperature control system as well as temperature control simulation module for high and low temperature oil tank, were developed based on MATLAB software. Finally, the rationality and feasibility of simulation module were verified by the experimental data, gathering the temperature data in actual situations and comparing the simulation data with the actual data. The examples illustrated that the design methods and control strategies were of reasonableness. The results of contrast showed that the overall situation and trend of the temperature under the actual condition can be reflected by control simulation module. The proposed design method and control strategy for differentiated temperature control system have certain feasibility and rationality, as well as higher engineering application values.
ZHENG Ying-jie, NIU Xing-hua, GAO Wei-guo, ZHANG Da-wei, LIU Teng. Study on design method and control strategy of differential temperature control system for precision machine tools. Chinese Journal of Engineering Design, 2018, 25(4): 472-480.
谢钦.专用的制冷系统计算软件设计[J].流体机械,2013,41(4):75-80. XIE Qin. The special calculation software design of refrigeration system[J]. Fluid Machinery, 2013, 41(4):75-80.
[[2]]
徐周璇.单级蒸气压缩式制冷系统的仿真与实验研究[D].保定:华北电力大学(河北)能源动力与机械工程学院,2009:18-24. XU Zhou-xuan. Simulation and experiment on single stage vapor compression refrigeration system[D]. Baoding:North China Electric Power University (Hebei), School of Energy Power and Mechanical Engineering, 2009:18-24.
[[3]]
杨亮.基于仿真的制冷系统稳健设计方法研究[D].上海:上海交通大学机械与动力工程学院,2012:18-35. YANG Liang. Model-based robust design method of refrigeration system[D]. Shanghai:Shanghai Jiaotong University, School of Mechanical Engineering, 2012:18-35.
[[4]]
SUKRI M F, MUSA M N, SENAWI M Y, et al. Achieving a better energy-efficient automotive air-conditioning system:a review of potential technologies and strategies for vapor compression refrigeration cycle[J]. Energy Efficiency, 2015, 8(6):1201-1229.
[[5]]
TSAI Ching-chih, LIN Shui-chun, WANG Tai-yu, et al. Stochastic model reference predictive temperature control with integral action for an industrial oil-cooling process[J]. Control Engineering Practice, 2009, 17(2):302-310.
[[6]]
TIZZEI A, MENEGHETTI C R, CAPPELLI N L, et al. System for studies of control strategies applied in the refrigerated chambers[J]. Engenharia Agrícola, 2011, 31(5):868-878.
[[7]]
张涵.压缩式制冷系统的内模控制策略研究[D].天津:天津大学电气自动化与信息工程学院,2014:25-41. ZHANG Han. Research on internal model control strategy of compression refrigerating system[D]. Tianjin:Tianjin University, School of Electrical and Information Engineering, 2014:25-41.
[[8]]
李庚.压缩式制冷机组变参数控制及工作点优化[D].天津:天津大学电气自动化与信息工程学院,2016:43-53. LI Geng. Variable parameter control and working point optimization of the compression refrigeration[D]. Tianjin:Tianjin University, School of Electrical and Information Engineering, 2016:43-53.
[[9]]
YIN Xiao-hong, WANG Xin-li, LI Shao-yuan, et al. Energy-efficiency-oriented cascade control for vapor compression refrigeration cycle systems[J]. Energy, 2016, 116:1006-1019.
