back-up method meaning in Chinese

后援法, 后备法

First from system aspect , this paper uses voltage sensitivity , pv curves method , equivalent reactive compensation method , back - up generation method to evaluate the reactive value of the generators in seven buses system and ieee 14 buses system . the vs and pv methods can evaluate the source ' s ability of tracking the load ' s variation . the erc and back - up methods can evaluate the availability of replacing other generators . the value determines the cost
从对系统贡献角度，采用电压灵敏度方法( vs法) 、 pv曲线法、等效无功补偿法( erc ) 、无功备用方法来确定一个七节点系统中的发电机的无功价值和ieee14节点系统的发电机的无功价值，电压灵敏度法和pv曲线法可比较出不同电源跟踪负荷变化的灵敏度大小，而等效无功补偿法和无功备用方法可比较出不同电源替换其它发电机是否是最有效率的。