制冷系晚的自动控制是提高制冷品质的有效手段之一，采用自动控制可以保证库稳定，避免不必要的低温，并可使食品在贮藏期间质量稳定，减缓食品表面水分的蒸发，此外采用自动控制还可以使冷库制冷系统运行中的温度、压力，液位等状态参数保持在要求的范围内，保证系统安全高效运行，据统计冷库制冷系统采用自动控制比手动控制可节能15%-20%

The automatic control of the refrigeration system is one of the most effective means to improve the quality of refrigeration. The automatic control can ensure the stability of the library to avoid unnecessary low temperature and stabilize the quality of the food during storage. The automatic control can also make the evaporation of the surface moisture of the food. The temperature, pressure, liquid level and other state parameters in the operation of the cold storage refrigeration system are kept within the required range to ensure safe and efficient operation of the system. According to statistics, the automatic control of the cold storage refrigeration system can save energy by 15%-20% compared with manual control.