食品双螺杆挤出机温控系统的模糊免疫PID控制  

Fuzzy immune PID control in food twin-screw extruder temperature control system

作　　者：赵晓宇[1] 唐庆菊[2] 孙超[3] 徐克非[1] 

机构地区：[1]哈尔滨商业大学轻工学院,哈尔滨150028 [2]黑龙江科技学院机械工程学院,哈尔滨150027 [3]哈尔滨工程大学水声工程学院,哈尔滨150001

出　　处：《哈尔滨商业大学学报（自然科学版）》2007年第6期743-746,共4页Journal of Harbin University of Commerce：Natural Sciences Edition

基　　金：黑龙江省教育厅科学技术研究项目(10541071)

摘　　要：食品双螺杆挤出机机筒温度对挤压产品产量和质量影响很大,实现对机筒温度的有效控制是一项重要工作.建立控制对象的数学模型,借鉴生物体免疫机理,设计出模糊免疫PID控制器,并进行了仿真研究.结果表明,该温控系统鲁棒性强,响应速度快,动态误差小,性能优于单一的PID控制,能满足食品加工工艺的要求.As the product output and quality is highly influenced by the wall tempreture of food twin-extruder, realizing the effective control of wall temperature is an important process. Mathematical model of control target is presented, fuzzy immune PID controller is designed by making use of the immunity mechanism of biological system, the simulation experiments are made. Results show that the tempreture control system is robust, response quickly, and dynamic deviations are reduced, its capability is superior to pure PID controller, it can satisfy the requirement of food processing technology.

关 键 词：食品双螺杆挤出机 温度控制 免疫机理 模糊免疫PID控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]