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The Control and Research on VAV Air-conditioning System in the Intelligent Building

Author: LiYouSheng
Tutor: LiNan
School: Lanzhou University of Technology
Course: Mechanical Manufacturing and Automation
Keywords: Intelligent Buildings Variable Air Volume Fuzzy Control PID control Simulation
CLC: TU831.3
Type: Master's thesis
Year: 2011
Downloads: 124
Quote: 2
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Abstract


Intelligent building in recent years, rapid development in China , it has become our city one of the major energy consumer . The air conditioning system is not only an important part of the intelligent building and is the most important energy consumption in the intelligent building system . Variable air volume air conditioning system is far superior to other air - conditioning systems to meet the energy efficiency, comfort and flexibility . In foreign countries has become the major trends in the development of our country , due to the complexity of the control and intelligent control is relatively slow , so our application is also less . VAV air conditioning system is excellent energy-saving , comfort air air-conditioning system . Course of its operation need to have appropriate means of control, to ensure that the system energy efficiency and operational stability . But for the object of such a complex and difficult to control , classical control and modern control are difficult to fully meet the requirements, so it is necessary to fully achieve by means of intelligent control . Fuzzy control, neural network control , intelligent control into the field of VAV system control is a valuable task . Control temperature variable air volume air conditioning system for the study , research and discussion of the theoretical temperature control inertia, delay and nonlinear characteristics . In this paper, cascade control and fuzzy - PID algorithm in the main circuit line adjustment in the system is running . And the design temperature control system and the establishment of a mathematical model , the end of the room and air conditioning systems Control Simulation in Matlab platform Simulink environment . Verify this paper , the design of the control method than the currently used control method has obvious advantages . Achieve good control effect , but also to meet the most important requirements of energy saving and comfort .

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CLC: > Industrial Technology > Building Science > Housing construction equipment > Air-conditioning, heating, ventilation,and its equipment > Air-conditioning > Air-conditioning systems
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