摘要
以模糊控制和PID控制为理论基础结合实际设计了单片机控制的温度检测电路及灵活性较高的智能控制器.根据温度控制箱的实时特性在线调整PID参数,提高了系统的控制精度,使温度控制更加合理准确.用Matlab/Simulink系统仿真软件对普通PID和模糊PID进行了仿真,并进行了对比分析.对比结果可以看出,所设计的模糊PID具有较好的稳态精度,响应快速性,超调量也很好.编制了单片机与上位机的串行通信程序,增强了检测系统的智能性与交互性;所采用的电路和程序具有较好的通用性和可移植性.
Based on the theory of fuzzy PID control, a high flexible intelligent controller is designed in combination with practical application. The controller uses a chip microprocessor to control temperature detection circuit. According to the real- time performance of the temperature control cabinet, the system adjusts the PID parameter online to improve its exactitude and make the control more sound and reasonable. The Matlab/Simulink system simulation software is used to simulate the common PID and fuzzy PID with the results comparatively discussed. It is thus revealed that the fuzzy PID controller designed has higher stead-state precision and faster response speed, as well as better overshoot. The serial communication is given between the chip microprocessor and upper monitor to strengthen the intellectuality and interaction of the detection system so as to meet designed request. The detection circuit and the serial communication program both have high universality and transplantability.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2008年第4期569-572,共4页
Journal of Northeastern University(Natural Science)
基金
辽宁省自然科学基金资助项目(20062029)
