提出了一种基于模型的中央冷水机组冷却塔回路故障检测与诊断方法。将考虑冷却水温度传感器、冷却塔泵和冷却塔风扇中发生的故障。通过特征量值与无故障运行对应值之间的偏差来检测故障。选择代表性能的特征量是塔的电导面积积、方法、效率和风扇功率。存在故障时，偏差非常大，因此可以检测到故障。 每个故障的偏差模式都不同，因此可以制定规则来诊断故障源。单元:SICitation:研讨会论文，佐治亚州亚特兰大，2001年

A model-based method for the detection and diagnosis of faults in the cooling tower circuit of a central chilled water facility is presented. Faults that occur in the cooling water temperature sensor, the cooling tower pump, and the cooling tower fan are considered. The faults are detected through deviations in the values of characteristic quantities from the corresponding values for fault-free operation. The characteristic quantities chosen to represent the performance are the conductance-area product of the tower, the approach, the effectiveness, and fan power. With faults present, the deviations are significant, which allows the faults to be detected. The pattern of the deviations is different for each fault, allowing rules to be developed that allow diagnosis of the source of the fault.Units: SI