Improve The Energy Efficiency Of Intelligent Building Air Conditioning System Control And Research

Intelligent building is a building with intelligence. The air conditioning system exhausts most energy in the building, so it is necessary to adopt a control method to get the optimum energy efficient by making the best of the resources in the intelligence building. In this paper, the main aim of control and study is the temperature of the air conditioning system. According to the time lag of the air-condition system and the delay of the control, an energy-saving method by means of intelligent control theory and the feedforward control in classical control theory is presented, the main idea of which is to predetermine the lead time of control actions to reduce the overshoot and fluctuation of the controlled temperature. The cooling preparation period is determined in the way of neutral network. During the regulating period, conventional feedforward-feedback control is adopted. The constant-air-volume and the variable- air-volume air conditioning system are discussed respectively. The previous time of turning off is got from a fi.~zzy mould. On the basis of analyses and contrast, the method described in this paper is better than other available metho~Is. The methods stated in this paper have good advantages over the conventional methods. It gets not only good control effect, but also satisfying energy saving effect. Both experiment data and simulation results indicate it.