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本文提出了基于模型的离心式制冷机组系统台数优化控制策略。该优化控制策略充分利用系统日常调试与机组自身提供的可靠数据,采用简化模型来评估单台机的最大制冷量、计算单台机的瞬时制冷量,并预测一定负荷下不同台数机组运行时的系统总电功率,寻求制冷机台数的优化组合,以使得制冷机组系统的性能系数最大化。
This paper presents a model-based centrifugal chiller system number optimization control strategy. The optimized control strategy makes full use of the reliable data provided by routine commissioning of the system and the unit itself, uses a simplified model to evaluate the maximum cooling capacity of a single unit, calculates the instantaneous cooling capacity of a single unit, and predicts the operation of units with different units under certain load The total system power, seeking the optimal combination of the number of refrigerators to maximize the coefficient of performance of the chiller system.