用双能量法计算水电站中单相水电阻器的电阻

Calculation of Resistance of the Single-Phase Water Resistors in Hydropower Stations by Dual Energy Method

用双能量法计算水电站中单相水电阻器的电阻把整个装置看作一个系统研究其能量从系统处于平衡时的能量有极大值和极小值出发，获得系统中简单近似的能量分布这种近似的分布提供了计算水电阻准确值的上界值和下界值计算方法简单。

The dual energy method is a way of treating the energy of the whole device as a system By noticing that the system energy at equilibrium has a maximum or a minimum value, we can obtain relatively simple approximations to the energy distribution These approximation provide both the upper and the lower bounds of the values in calculating the resistances The calculative method is simple, the accuracy is high, and so a great amount of calculative labour and expenses can be saved