Staged Control of Flood Limit Water Level Based on System Coordination Degree Model
To coordinate between flood control and profit promotion and enhance the efficient utilization of flood re-sources,we proposed a stage-based division of flood season using the improved fuzzy set method,and subsequently established a system coordination degree model to calculate the dynamic control domain of flood limit water level.The limit water levels in Silin Reservoir,as an example,in pre-flood season and post-flood season are directly pro-portional to the synergetic contribution degree of power generation benefit,but inversely proportional to the syner-getic contribution degree of flood control risk.To achieve the maximum degree of system coordination,the dynamic control domain of flood limit water level is recommended to be[435,437]m and[435,438]m in pre-flood season and post-flood season,respectively.These recommendations would lead to additional electricity generation of 2 169.907×104 kW·h and 6 509.722×104 kW·h,and an increase in water resources utilization of 0.716×108 m3 and 1.079×108 m3,during the pre-and post-flood seasons,respectively.The findings of this study contribute to im-proved flood resource utilization and offer valuable insights for the safe and reasonable operation of reservoirs.
flood limited levelflood season stagingimproved fuzzy set analysis methoddynamic control boundsystem coordination degree