基于节点参与因子的电压稳定分析与研究

Voltage Stability Analysis and Research Based on Node Participation Factor

提出了基于节点参与因子的电压稳定分析原理和指标,以某省220 kV以上电压等级网架结构为研究对象,分析了其无功平衡情况,分别采用恒阻抗-恒电流-恒功率静态负荷模型(下称ZIP负荷模型)和感应电动机综合负荷模型,对其薄弱母线和薄弱区域进行了研究,得到了系统电压临界运行状态时的薄弱母线和薄弱地区,并提出了相应的电压控制策略。

The paper proposes the principle and index of voltage stability analysis based on node participation factor. Taking the 220 kV and above power grid structure in one province as an example, the paper analyzes its reactive power balance, carries out the research on the structure to determine the weak bus and weak area when the system voltage is at a critical point by using ZIP load model and induction motor integrated load model, and puts forward eoIresponding voltage control strategies.