线性模拟法求解电力系统静态电压稳定裕度

文章提出一种快速，准确，实用的求解静态电压稳定裕度的线性模拟法，在求解过程中以灵敏度指标的变化特征作为临界点位置的判据，考虑了电力系统中各种非经恶性循环因素的变化，如发电机无功出力限制，负荷的静态特性，ＡＧＣ，ＯＬＴＣ调节作用等，使静态电压稳定工的求解更加符合电力系统的实际运行状况，同时，该方法还考虑了单负荷节点，区域，全网等不同的负荷增长方式下系统的功率裕度，基于该算法的电压稳定分析软件为运行人

AN ALGORITHM OF LINEAR SIMULATION TO CALCULATE STATIC VOLTAGE STABILITY LIMIT

An algorithm of linear simulation to calculate the static voltage stability limit of power system is presented. The sensitivity index is considered to be a criterion when the load is increased to the critical point. Several nonlinear factors such as reactive power limit of generators, static load characteristics, AGC and OLTC regulation are considered to make the solution of static voltage stability more practical. The voltage stability limit can be solved according to load increasing modes at different nodes, such as at single node, at an area or at all nodes. The voltage stability analysis program based on the algorithm is a useful and fast tool for power system operators and planner.