Air Conditioning Chilled Water System Control Research Based On LSSVM And Immune PID

As people living standard rise in the summer,central air conditioning power consumption also constantly improve,central air conditioning energy consumption of buildings in the proportion of the total power consumption also unceasingly to enhance.In order to reduce energy consumption,many units of central air-conditioning energy saving transformation,but there is still a low efficiency and waste of cooling capacity serious problem.To solve these problems were studied based on LSSVM system identification of central air conditioning immune PID control system,using the hybrid model can predict the energy consumption and output the characteristics of the relationship between cooling capacity,improve the efficiency of the air conditioning system.This paper for the article analyzes the working principle of central air conditioning system,chilled water system and its subsystems are introduced the function of each unit and the relationship of energy consumption,is established on the central air conditioning chilled water energy consumption of each part,establish parameter model of chilled water system.Secondly,this paper introduces the basic concept and principle of SVM and LSSVM,and compared the merits of the two algorithms by experiment.Again,selection of calculation is more simple,LSSVM algorithm of solving more quickly through the measured data in the experiment of previously established model for system identification,to get a first order transfer function,and using the data validation model accuracy.Finally,this paper introduces the basic principle of immune PID control and the controller of basic structure,build the immune PID control of cooling water system,has identified model to make use of the immune PID control,to achieve stable output,reduce power consumption.Traditional air conditioning heat and cold source control system generally adopts extensive control,low energy efficiency,energy waste phenomenon is serious.With the coming of the era of energy conservation,a high-profile topic gradually pay more attention to building energy consumption.This paper discusses the situation of using immune PID control of chilled water system for energy conservation,to reduce the input energy consumption,improve water temperature stability,accuracy,and has strong practical significance.