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在五十至六十年代,用抵偿年限法或年计算支出最小法求水电站重复容量经济年利用小时数h经济,重的计算公式,曾广泛用于求水电站重复容量的简化算法中。近年来,在我国已经普遍采用年费用最小法或总费用最小法。本文按照此法来推求水电站重复容量经济年利用小时数h经济,重的计算公式,並附有其中系数β的数值表可供查用。判别水电站装设重复容量经济性的经济准则应是:电力系统年费用最小。若以NF水、NF火
In the 1950s and 1960s, the economical and heavy calculation formula for calculating the number of hours of annual economic utilization of hydropower stations was calculated using the method of offsetting the number of years of compensation or the minimum annual expenditure of calculation. It has been widely used in the simplified algorithm for the repeated capacity of hydropower stations. In recent years, the annual minimum cost method or the total cost minimum method has been commonly used in our country. According to this method, the annual economic utilization hours of the hydropower station’s repeated capacity is calculated, and the calculation formula of the economy and weight is included. The numerical table of the coefficient β is available for inspection. The economic criterion for determining the economical efficiency of the installation of a hydropower station should be: The annual cost of the power system is the minimum. If using NF water, NF fire