空调热水一体机制冷兼制热水模式的模糊判定

Fuzzy determination of air conditioner with hot water in refrigeration and water heating mode

基于目前空调热水一体机在制冷兼制热水模式时,随着水箱温度的不断升高,机组制冷能效比下降和制冷量减少的问题,提出采用以水箱温度为切换点,控制水冷到风冷的切换。以前一日的切换温度和环境温度变化量为输入,当日的切换温度为输出设计模糊判定控制系统,并对其控制效果进行MATLAB仿真。结果表明,以前一日的切换温度和环境温度变化量为依据能够对当日的切换温度作出合适的判定。

Under refrigeration and water heating mode,EER of the system declines with the temperature rising in tank,which leads to insufficient cooling.To solve this problem,proposes that it takes the water tank temperature as switching point to switch water-cooled to the air-cooled.Designs a fuzzy determination system,using the previous day＇ switch temperature and the environment temperature variation as the inputs,the switch temperature of the day as the output,and tests the effects on this system by MATLAB.The results show that it can make the right temperature determination based on the switching temperature of the day before and ambient temperature variation.