中央空调冷却水系统节能研究

Energy saving control strategy for cooling water system of central air conditioning based on ANYLOGIC

冷却水系统是中央空调的主要组成部分,同时也是耗能大户。为实现冷却水系统变流量节能控制的目标,利用冷却水系统各部分之间的数学关系,在Anylogic仿真软件搭建冷却水系统仿真模型,在各种不同的室外湿球温度的情况下,通过分析仿真得到数据,寻求既满足冷机需求,又能实现冷却水泵和冷却塔风机节能最低的最优运行工况。通过模型仿真为实际工程控制提供精准的控制数据,从得到的结果数据可知,使用这种策略可以克服传统控制粗放、效率低、能源浪费严重的缺点,实现冷却水系统精准控制、节能高效的目的。

The mathematical models of cooling water system are established in this paper. Afterwards, a simulation system in virtue of the established mathematical model is constructed with the simulation software Anylogic. Ultimately, in the case of various kinds of wet bulb temperature, the cooling water system modeling is implemented by means of the Anylogic. Through the analysis of the operating data, the most energy-efficient working conditions meeting the demand of chilling system are found out. The precise control strategy for real cooling water system is gained by simulation. The new control strategy can solve the problem of extensive, blind control and low efficiency of traditional control strategies, achieving the purpose of precise and energy-efficient control.