System for controlling flow rate in pipelines

摘要

System for controlling flow rate in pipelines connecting a plurality of reservoirs is disclosed. Flow rate Qij(t) of fluid flowing from one reservoir (i) to another reservoir (j) is first calculated from the water levels Hi(t), Hj(t) of both reservoirs (i), (j) and then water level Hj(t+1) of the reservoir (j) at the time (t+1) is calculated from its inflow and outflow taking into account the predicted amount of demand Qje(t). If the water level hj(t+1) is below or over the predetermined lower or upper limitation, manipulated variables for valves and pumps installed in pipelines are regulated to control inflow of the reservoir (j) so that the required fluid-feed is satisfied while maintaining the scheduled water level of the reservoir (j).