抄録
Water purification plants are appointed a mission to produce always enough drinking water economically for time variable water demand and time variable conditions of intake water quality. To perform it, intelligent plant operation based on knowledge accumulated at the plant is required. Especially, even now, some of the plant operations depend on human operators' help.
In this paper, an intelligent filter basins control system is shown. Using an on-line expert system, stable water filtration operations come to be automatically controlled without human operator's help. The expert system determines refresh timing and washing time for each filter basin considering for reduction of washing water volume for the filter basin refresh. Also, the expert system determines the refresh timing to avoid over concentrated refresh request from the filter basins. This expert system is installed into a distributed process controller at a filter facility control part of a large scale supervisory control and data acquisition system. The newly developed system has been applied to an actual plant.
