Study Of Residential Central Air Conditioning

Air-conditioner has been widely used in our country at present. The temperature control of the traditional air-conditioner is to detect the changing of indoor temperature and then to control the compressor's switching on or off by the temperature sensor. It leads to a lag to changing of temperature and makes the indoor temperature to fluctuate greatly. It influences both the accuracy of air-conditioner's temperature control and the comfort of air-conditioned surroundings. Moreover, the traditional air- conditioner's temperature regulating is an intermittent changing process. It can't adjust the air-conditioner's working status in time according to surrounding's temperature changing. Therefore, it can't control fully automatically and waste too much electricity. Today, people are hankering to comfort surroundings but lacking of enough energy resources. So it has very important theoretical value and practical significance to research a new type of air-conditioner controller and solve the existing problems.Now the fan coil center air-conditioner is a kind of widely used air-conditioner system. The machine of fan coil air-conditioner is a kind of terminal setting that is made of fan and coil. This paper is targeted at the terminal controller of the fan coil center air-conditioner. It designs fuzzy controller which makes a single-chip microcomputer as its core to control the fan coil air-conditioner. Fuzzy control method can be used to solve the existing problems of traditional control method and to realize the fan's speed and the refrigerant's flow capacity step-less regulation to reduce energy consumption.In the first part, this paper introduces the classes of central air-conditioner used in the home and the current situation of the development of controller's fuzzy control in domestic and abroad. On the...