入库流量及其反演推算研究

Research on Inflow and Its Inversion Calculation

实时入库流量是水库调度、安全经济运行等的基础数据,实时入库流量推算属于水务计算中极其重要且频繁的工作。由于入库流量有别于传统天然河道流量的特殊性,采用水量平衡方程推算的入库流量过程一般呈现“锯齿”状剧烈跳动,甚至出现负值,结果严重失真,制约着水库实时调度工作。以南欧江六级水电站为例,对入库流量推算误差来源进行了分析,并提出解决建议,力求为水库实时调度、运行提供更可靠的数据支撑。

Real-time inflow is the basic data for reservoir operation,safe and economic operation.Real-time inflow estimation is an extremely important and frequent work in water affairs calculation.Because the inflow of reservoir is different from that of traditional natural rivers,the inflow process calculated by water balance equation generally shows sharp jaw-like runout or even negative value,which seriously distorts the results and restricts the real-time reservoir dispatching.Taking Nanoujiang Cascade 6 Hydropower Station as an example,this paper analyses the source of error in reservoir inflow calculation and puts forward solutions to provide more reliable data support for reservoir real-time dispatching and operation.