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确定小水电站装机容量的方法,通常采用保证出力倍比法或者是机组年利用小时法。这两种方法,表现形式虽然不同,但两者之间有着内在的联系。目前,一般认为装机容量等于2～4倍的保证出力或者年利用小时达到5000至6000小时,是比较合理的。但是对于一个新建工程要得到这两个指标,必须通过比较繁杂的水文水能计算。首先要拟定一个装机容量,求出其保证出力和年电能,如果符合这两个条件,则认为是合理,的,否则需再拟定装机容量,重新进行计算。而大部分小型水电站均是位于水文资料短
The method of determining the installed capacity of a small hydropower station usually adopts the method of guaranteeing the output ratio or the annual utilization hours of the unit. Although these two methods have different manifestations, they are intrinsically linked. At present, it is generally considered reasonable to set the installed capacity equal to 2 to 4 times the guaranteed output or annual utilization hours to 5000 to 6000 hours. However, to get these two indexes for a new project, it must be calculated by the more complicated hydrology and water. First of all, we must draw up a installed capacity, find out its guaranteed output and annual energy, if these two conditions are met, then that is reasonable, otherwise need to draw up installed capacity, re-calculated. Most of the small hydropower stations are located in short hydrological data