目前,小型水电站在规划设计中的经济分析,常采用动态分析法,并以效益费用比(简称“益本比”)及投资回收年限作为主要技术经济指标。本文根据小水电的特点,对资金流程进行了概化,由此导出一系列计算公式。此外,还对一些参数的合理取值范围进行了分析。 At present, the economic analysis of planning and design of small-scale hydropower stations often uses the dynamic analysis method. The benefit-cost ratio (referred to as “cost-benefit ratio”) and the investment recovery period are taken as the major technical and economic indicators. Based on the characteristics of small hydropower, this paper generalizes the capital flow and derives a series of calculation formulas. In addition, the reasonable range of some parameters is analyzed.