Distributed control system suitable for data center secondary pump variable flow chilled water

The invention belongs to the technical field of control, and particularly relates to a distributed control system suitable for data center secondary pump variable flow chilled water, which comprises a cooler, a primary pump control unit, a secondary pump control unit, a single machine room precision air conditioner control unit, a moving ring system interface and a data center, and the control units are connected by adopting a ring network structure. According to the two-stage pump variable flow chilled water system, the multiple controllers are adopted, information of all links is fused, whole-process monitoring of cooling capacity preparation, cooling capacity conveying and cooling capacity distribution is achieved, cooling capacity monitoring is more accurate, the utilization effect is better, and therefore energy consumption is reduced. 本发明属于控制技术领域，具体而言，涉及一种适用于数据中心二级泵变流量冷冻水的分布式控制系统,包括冷机、一次泵控制单元、二次泵控制单元、单个机房精密空调控制单元、动环系统接口和数据中心，各个控制单元采用环网结构连接。本发明针对二级泵变流量冷冻水系统，通过采用多个控制器，融合了各个环节的信息，实现了从冷量制备、冷量输送、冷量分配全过程监控，使得