空调冷却水系统综合寻优控制策略探讨
Discussion on integrated optimal control strategy for air conditioning cooling water systems
摘要：
针对空调冷却水系统优化问题,本文搭建了系统模型,通过数值计算,得到了不同负荷率下的系统能耗变化规律。计算结果显示,冷却水流量与冷却塔风量存在使系统能效最优的动态组合。本研究提出的寻优控制模式,其本质是在设备性能及系统负荷约束下,以电冷源综合制冷性能系数(SCOP)作为系统能效评价指标,建立多参数耦合的优化目标函数,求解冷却水流量、冷却塔风量等控制变量的最优组合。
Abstract：
To optimize the air conditioning cooling water systems, this paper establishes a system model, and obtains the variation of system energy consumption under different load rates through numerical calculations. The calculation results show that there is a dynamic combination of cooling water flow rate and cooling tower air volume that optimizes the system’s energy efficiency. The optimal control model proposed in this study essentially aims to establish an optimization objective function with multiple parameter coupling under the constraints of equipment performance and system load, taking the system refrigerating coefficient of performance (SCOP) of the electric cold source as the system energy efficiency evaluation index, to determine the optimal combination of control variables such as cooling water flow rate and cooling tower air volume, etc.
Keywords:air conditioning cooling water system; cooling tower; water chiller; control strategy; energy consumption