Analysis of a hybrid control scheme in the district heating system with distributed variable speed pumps
Compared with conventional central circulating pumps (CCCPs)in the district heating system (DHS), the DHS with distributed variable speed pumps (DVSPs)shows a great potential for energy saving. In this paper, a hybrid control scheme both using electric control valves (ECVs)and DVSPs is applied to the district heating system in Shenyang, China. This new hybrid control system results in reduction of
