利用V-I曲线分析负荷扰动对电压稳定性的影响

Analyzing the influence of load on static voltage stability with V-I curves

建立了电力系统供应侧和负荷侧V -I静特性的数学模型 ,提出了利用特性曲线来判断电压稳定性的方法 ,并利用负荷特性曲线的变化趋势来分析负荷增长对电压稳定性的影响。该方法简单、实用 。

Mathematic models of load and provision ends are built in electric power system.A new method is presented to judge steady state voltage stability on the basis of V-I characteristic curves. According to the variation of V-I curves,the influence of load increase on static voltage stability may be analyzed. This method is simple and practical,and is suitable for on line real time analysis of voltage stability.