The Research On The Intelligent Control Technique On Application In The Inspect And Control Of Central Air-Condition System

The thesis was Carried out basing on the central air-condition temperature and humidity intelligent control system investigation projct in a intelligent building system integration company ChongQing. Intelligent control is the stage in high class of the development of automatic control, it is a crossed with comprehensived outcome of control theory, system theory, the information and artificial intelligence various courses, for solving those control system use the traditional method hard or can't solve very much well provided the valid theories with the method. The fuzzy control is the importance constitute part of the intelligence control. Fuzzy control is based on the knowledge of fuzzy mathematics, fuzzy language form means that reason logically with the fuzzy and logical rule, it is a arithmetic figure control system with a kind of feedback adopting calculator control technique. It constitutes core is the intelligence and fuzzy controller.The central air condition's energy consumes occupy above 50% of whole building, it is the point of the building automation economy energy for central air condition inspect and control. Because the central air condition system is very huge, the respond speed slower, the fall behind phenomenon is more serious, a lot of difficulty increased of the stability of machine set circulation. The current central air condition inspect and control system is still adopted the traditional control technique almost, the adaptability between work and environment variety for traditional control technique is bad, controling inertia bigger, the result of economy energy ignores to think.Therefore if can apply the intelligence control technique into inspect and control system of the central air condition, then it has important theories value and the actual meaning very much for increasing stability of the machine set' circulating, dependable, economy energy and push the application development of control intelligence technical. The text introduced the general of the intelligence control and the fuzzy control theories; Expatiate in brief the central air condition system and its automatic control system; The thesis point discussed the application of fuzzy control theories in central air condition of temperature and humidity finally. The thesis was detailed to discuss the choice of fuzzy variety of the central air condition control system of temperature and humidity, certain the grade of membership and the choice of fuzzy rules, certain fuzzy inference and fuzzy control table etc. Finally, simulates the designed fuzzy control system of the central air condition, the result shows that it is more stability and economy energy of fuzzy control system then traditional control system.