基于FVSI线稳定指标计算母线最大承载负荷确定电力系统弱母线的方法

介绍了使用线稳定指标作为快速电压稳定指标（FVSI）确定电力系统母线的最大承载负荷的方法。该方法根据电压崩溃前各负荷母线能够承载负荷量的大小排序，把能承载负荷量最小的母线排为最高级并把它作为最薄弱母线。基于负荷变量进行线稳定指标计算和电压稳定分析。对于每条负荷母线，如果其电压稳定指标的值越接近于1，说明该母线承载了最大可能的负荷。最后使用IEEE系统对其检验，结果证明所提出的方法能够快速估算各负荷母线的最大承载能力，找到电力系统中薄弱母线。

Estimating maximum loadability for weak bus identification using fast voltage stability index

This paper demonstrates the use of line stability index termed as fast voltage stability index(FVSI) in order to determine the bus maximum loadability in a power system.The bus that can withstand the smallest amount of load before causing voltage collapse is ranked highest and identified as the weakest bus.It involves the experimental process voltage stability analysis and evaluation of line stability index based on the load variation.The point at which FVSI is close to unity indicates the maximum possible connected load termed as maximum loadability at the point of bifurcation.This technique is tested on the IEEE system and the results prove that the technique can rapidly estimate the maximum loadability of each bus and find the weak bus in a power system.